Class: Numo::Int8

Inherits:
NArray show all
Defined in:
ext/numo/narray/types/int8.c

Constant Summary

UPCAST = 
hCast
ELEMENT_BIT_SIZE = 
INT2FIX(sizeof(dtype)*8)
ELEMENT_BYTE_SIZE = 
INT2FIX(sizeof(dtype))
CONTIGUOUS_STRIDE = 
INT2FIX(sizeof(dtype))
MAX = 
M_MAX
MIN = 
M_MIN

Constants inherited from NArray

NArray::VERSION

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from NArray

#==, #append, array_type, asarray, #at, byte_size, #byte_size, #byte_swapped?, #cast_to, #coerce, #column_major?, column_stack, concatenate, #concatenate, #contiguous?, #cov, debug=, #debug_info, #deg2rad, #delete, #diag, #diag_indices, diag_indices, #diagonal, #diff, #dot, #dsplit, dstack, #empty?, #expand_dims, eye, #flatten, #fliplr, #flipud, from_binary, #host_order?, #hsplit, hstack, #initialize, #initialize_copy, #inner, #inplace, #inplace!, #inplace?, #insert, inspect_cols, inspect_cols=, inspect_rows, inspect_rows=, #kron, linspace, logspace, #marshal_dump, #marshal_load, #ndim, #new_fill, new_like, #new_narray, #new_ones, #new_zeros, ones, #out_of_place!, #outer, parse, profile, profile=, #rad2deg, #repeat, #reshape, #reshape!, #reverse, #rot90, #row_major?, #shape, #size, #split, srand, #store_binary, #swap_byte, #swapaxes, #tile, #to_binary, #to_c, #to_f, #to_host, #to_i, #to_network, #to_swapped, #to_vacs, #trace, #transpose, #tril, #tril!, #tril_indices, tril_indices, #triu, #triu!, #triu_indices, triu_indices, upcast, #view, #vsplit, vstack, zeros

Constructor Details

This class inherits a constructor from Numo::NArray

Class Method Details

.[](elements) ⇒ Numo::Int8 .cast(array) ⇒ Numo::Int8

Cast object to Numo::Int8.

Parameters:

  • elements (Numeric, Array)
  • array (Array)

Returns:



1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
 
# File 'ext/numo/narray/types/int8.c', line 1262

static VALUE
int8_s_cast(VALUE type, VALUE obj)
{
    VALUE v;
    narray_t *na;
    dtype x;

    if (CLASS_OF(obj)==cT) {
        return obj;
    }
    if (RTEST(rb_obj_is_kind_of(obj,rb_cNumeric))) {
        x = m_num_to_data(obj);
        return int8_new_dim0(x);
    }
    if (RTEST(rb_obj_is_kind_of(obj,rb_cArray))) {
        return int8_cast_array(obj);
    }
    if (IsNArray(obj)) {
        GetNArray(obj,na);
        v = nary_new(cT, NA_NDIM(na), NA_SHAPE(na));
        if (NA_SIZE(na) > 0) {
            int8_store(v,obj);
        }
        return v;
    }
    
#line 41 "gen/tmpl/cast.c"
    rb_raise(nary_eCastError,"cannot cast to %s",rb_class2name(type));
    return Qnil;
    
}

.[](elements) ⇒ Numo::Int8 .cast(array) ⇒ Numo::Int8

Cast object to Numo::Int8.

Parameters:

  • elements (Numeric, Array)
  • array (Array)

Returns:



1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
 
# File 'ext/numo/narray/types/int8.c', line 1262

static VALUE
int8_s_cast(VALUE type, VALUE obj)
{
    VALUE v;
    narray_t *na;
    dtype x;

    if (CLASS_OF(obj)==cT) {
        return obj;
    }
    if (RTEST(rb_obj_is_kind_of(obj,rb_cNumeric))) {
        x = m_num_to_data(obj);
        return int8_new_dim0(x);
    }
    if (RTEST(rb_obj_is_kind_of(obj,rb_cArray))) {
        return int8_cast_array(obj);
    }
    if (IsNArray(obj)) {
        GetNArray(obj,na);
        v = nary_new(cT, NA_NDIM(na), NA_SHAPE(na));
        if (NA_SIZE(na) > 0) {
            int8_store(v,obj);
        }
        return v;
    }
    
#line 41 "gen/tmpl/cast.c"
    rb_raise(nary_eCastError,"cannot cast to %s",rb_class2name(type));
    return Qnil;
    
}

.maximum(*args) ⇒ Object 



4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
 
# File 'ext/numo/narray/types/int8.c', line 4074

static VALUE
int8_s_maximum(int argc, VALUE *argv, VALUE mod)
{
    VALUE a1 = Qnil;
    VALUE a2 = Qnil;
    ndfunc_arg_in_t ain[2] = {{cT,0},{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_s_maximum, STRIDE_LOOP_NIP, 2, 1, ain, aout };

    
#line 60 "gen/tmpl/ewcomp.c"
    rb_scan_args(argc, argv, "20", &a1, &a2);
    

    return na_ndloop(&ndf, 2, a1, a2);
}

.minimum(*args) ⇒ Object 



4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
 
# File 'ext/numo/narray/types/int8.c', line 4125

static VALUE
int8_s_minimum(int argc, VALUE *argv, VALUE mod)
{
    VALUE a1 = Qnil;
    VALUE a2 = Qnil;
    ndfunc_arg_in_t ain[2] = {{cT,0},{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_s_minimum, STRIDE_LOOP_NIP, 2, 1, ain, aout };

    
#line 60 "gen/tmpl/ewcomp.c"
    rb_scan_args(argc, argv, "20", &a1, &a2);
    

    return na_ndloop(&ndf, 2, a1, a2);
}

Instance Method Details

#%(other) ⇒ Numo::NArray

Binary mod.

Parameters:

Returns:



2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
 
# File 'ext/numo/narray/types/int8.c', line 2308

static VALUE
int8_mod(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_mod_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '%', 1, other);
    }
    
}

#&(other) ⇒ Numo::NArray

Binary bit_and.

Parameters:

Returns:



2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
 
# File 'ext/numo/narray/types/int8.c', line 2898

static VALUE
int8_bit_and(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_bit_and_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '&', 1, other);
    }
    
}

#*(other) ⇒ Numo::NArray

Binary mul.

Parameters:

Returns:



2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
 
# File 'ext/numo/narray/types/int8.c', line 2168

static VALUE
int8_mul(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_mul_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '*', 1, other);
    }
    
}

#**(other) ⇒ Numo::NArray

Binary power.

Parameters:

Returns:



2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
 
# File 'ext/numo/narray/types/int8.c', line 2450

static VALUE
int8_pow(VALUE self, VALUE other)
{
    
#line 69 "gen/tmpl/pow.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_pow_self(self,other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_pow, 1, other);
    }
    
}

#+(other) ⇒ Numo::NArray

Binary add.

Parameters:

Returns:



2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
 
# File 'ext/numo/narray/types/int8.c', line 2036

static VALUE
int8_add(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_add_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '+', 1, other);
    }
    
}

#-(other) ⇒ Numo::NArray

Binary sub.

Parameters:

Returns:



2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
 
# File 'ext/numo/narray/types/int8.c', line 2102

static VALUE
int8_sub(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_sub_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '-', 1, other);
    }
    
}

#-@ ⇒ Numo::Int8

Unary minus.

Returns:



2522
2523
2524
2525
2526
2527
2528
2529
2530
 
# File 'ext/numo/narray/types/int8.c', line 2522

static VALUE
int8_minus(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_minus, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}

#/(other) ⇒ Numo::NArray

Binary div.

Parameters:

Returns:



2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
 
# File 'ext/numo/narray/types/int8.c', line 2238

static VALUE
int8_div(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_div_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '/', 1, other);
    }
    
}

#<<(other) ⇒ Numo::NArray

Binary left_shift.

Parameters:

Returns:



3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
 
# File 'ext/numo/narray/types/int8.c', line 3162

static VALUE
int8_left_shift(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_left_shift_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_left_shift, 1, other);
    }
    
}

#>>(other) ⇒ Numo::NArray

Binary right_shift.

Parameters:

Returns:



3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
 
# File 'ext/numo/narray/types/int8.c', line 3228

static VALUE
int8_right_shift(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_right_shift_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_right_shift, 1, other);
    }
    
}

#[](dim0, ..., dimL) ⇒ Numeric, NArray::Int8

Array element referenece or slice view. — Returns the element at +dim0+, +dim1+, … are Numeric indices for each dimension, or returns a NArray View as a sliced subarray if +dim0+, +dim1+, … includes other than Numeric index, e.g., Range or Array or true.

Examples:

a = Numo::DFloat.new(4,5).seq
=> Numo::DFloat#shape=[4,5]
[[0, 1, 2, 3, 4],
 [5, 6, 7, 8, 9],
 [10, 11, 12, 13, 14],
 [15, 16, 17, 18, 19]]

a[1,1]
=> 6.0

a[1..3,1]
=> Numo::DFloat#shape=[3]
[6, 11, 16]

a[1,[1,3,4]]
=> Numo::DFloat#shape=[3]
[6, 8, 9]

a[true,2].fill(99)
a
=> Numo::DFloat#shape=[4,5]
[[0, 1, 99, 3, 4],
 [5, 6, 99, 8, 9],
 [10, 11, 99, 13, 14],
 [15, 16, 99, 18, 19]]

Parameters:

  • dim0,...,dimL (Numeric, Range, etc) —

    Multi-dimensional Index.

Returns:

  • (Numeric, NArray::Int8) —

    Element object or NArray view.



1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
 
# File 'ext/numo/narray/types/int8.c', line 1334

static VALUE
int8_aref(int argc, VALUE *argv, VALUE self)
{
    int nd;
    size_t pos;
    char *ptr;

    nd = na_get_result_dimension(self, argc, argv, sizeof(dtype), &pos);
    if (nd) {
        return na_aref_main(argc, argv, self, 0, nd);
    } else {
        ptr = na_get_pointer_for_read(self) + pos;
        return m_extract(ptr);
    }
}

#[]=(dim0, .., dimL, val) ⇒ Numeric

Array element(s) set. — Replace element(s) at +dim0+, +dim1+, … (index/range/array/true for each dimention). Broadcasting mechanism is applied.

Examples:

a = Numo::DFloat.new(3,4).seq
=> Numo::DFloat#shape=[3,4]
[[0, 1, 2, 3],
 [4, 5, 6, 7],
 [8, 9, 10, 11]]

a[1,2]=99
a
=> Numo::DFloat#shape=[3,4]
[[0, 1, 2, 3],
 [4, 5, 99, 7],
 [8, 9, 10, 11]]

a[1,[0,2]] = [101,102]
a
=> Numo::DFloat#shape=[3,4]
[[0, 1, 2, 3],
 [101, 5, 102, 7],
 [8, 9, 10, 11]]

a[1,true]=99
a
=> Numo::DFloat#shape=[3,4]
[[0, 1, 2, 3],
 [99, 99, 99, 99],
 [8, 9, 10, 11]]

Parameters:

  • dim0,..,dimL (Numeric, Range, etc) —

    Multi-dimensional Index.

  • val (Numeric, Numo::NArray, etc) —

    Value(s) to be set to self.

Returns:

  • (Numeric) —

    returns val (last argument).



1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
 
# File 'ext/numo/narray/types/int8.c', line 1391

static VALUE
int8_aset(int argc, VALUE *argv, VALUE self)
{
    int nd;
    size_t pos;
    char *ptr;
    VALUE a;
    dtype x;

    argc--;
    if (argc==0) {
        int8_store(self, argv[argc]);
    } else {
        nd = na_get_result_dimension(self, argc, argv, sizeof(dtype), &pos);
        if (nd) {
            a = na_aref_main(argc, argv, self, 0, nd);
            int8_store(a, argv[argc]);
        } else {
            x = int8_extract_data(argv[argc]);
            ptr = na_get_pointer_for_read_write(self) + pos;
            *(dtype*)ptr = x;
        }

    }
    return argv[argc];
}

#^(other) ⇒ Numo::NArray

Binary bit_xor.

Parameters:

Returns:



3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
 
# File 'ext/numo/narray/types/int8.c', line 3030

static VALUE
int8_bit_xor(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_bit_xor_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '^', 1, other);
    }
    
}

#abs ⇒ Numo::Int8

abs of self.

Returns:



1977
1978
1979
1980
1981
1982
1983
1984
1985
 
# File 'ext/numo/narray/types/int8.c', line 1977

static VALUE
int8_abs(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cRT,0}};
    ndfunc_t ndf = { iter_int8_abs, FULL_LOOP, 1, 1, ain, aout };

    return na_ndloop(&ndf, 1, self);
}

#allocate ⇒ Object 



139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
 
# File 'ext/numo/narray/types/int8.c', line 139

static VALUE
int8_allocate(VALUE self)
{
    narray_t *na;
    char *ptr;

    GetNArray(self,na);

    switch(NA_TYPE(na)) {
    case NARRAY_DATA_T:
        ptr = NA_DATA_PTR(na);
        if (na->size > 0 && ptr == NULL) {
            ptr = xmalloc(sizeof(dtype) * na->size);
            
#line 22 "gen/tmpl/allocate.c"
            NA_DATA_PTR(na) = ptr;
        }
        break;
    case NARRAY_VIEW_T:
        rb_funcall(NA_VIEW_DATA(na), rb_intern("allocate"), 0);
        break;
    case NARRAY_FILEMAP_T:
        //ptr = ((narray_filemap_t*)na)->ptr;
        // to be implemented
    default:
        rb_bug("invalid narray type : %d",NA_TYPE(na));
    }
    return self;
}

#bincount([weight], minlength: nil) ⇒ UInt32 or UInt64 or SFloat or DFloat

Count the number of occurrences of each non-negative integer value. Only Integer-types has this method.

Examples:

Numo::Int32[0..4].bincount
=> Numo::UInt32#shape=[5]
   [1, 1, 1, 1, 1]

Numo::Int32[0, 1, 1, 3, 2, 1, 7].bincount
=> Numo::UInt32#shape=[8]
   [1, 3, 1, 1, 0, 0, 0, 1]

x = Numo::Int32[0, 1, 1, 3, 2, 1, 7, 23]
x.bincount.size == x.max+1
=> true

w = Numo::DFloat[0.3, 0.5, 0.2, 0.7, 1.0, -0.6]
x = Numo::Int32[0, 1, 1, 2, 2, 2]
x.bincount(w)
=> Numo::DFloat#shape=[3]
   [0.3, 0.7, 1.1]

Parameters:

  • weight (SFloat or DFloat or Array) —

    (optional) Array of float values. Its size along last axis should be same as that of self.

  • minlength (Integer) —

    (keyword, optional) Minimum size along last axis for the output array.

Returns:

  • (UInt32 or UInt64 or SFloat or DFloat) —

    Returns Float NArray if weight array is supplied, otherwise returns UInt32 or UInt64 depending on the size along last axis.



4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
 
# File 'ext/numo/narray/types/int8.c', line 4360

static VALUE
int8_bincount(int argc, VALUE *argv, VALUE self)
{
    VALUE weight=Qnil, kw=Qnil;
    VALUE opts[1] = {Qundef};
    VALUE v, wclass;
    ID table[1] = {id_minlength};
    size_t length, minlength;

    rb_scan_args(argc, argv, "01:", &weight, &kw);
    rb_get_kwargs(kw, table, 0, 1, opts);

  
#line 151 "gen/tmpl/bincount.c"
    v = int8_minmax(0,0,self);
    if (m_num_to_data(RARRAY_AREF(v,0)) < 0) {
        rb_raise(rb_eArgError,"array items must be non-netagive");
    }
    v = RARRAY_AREF(v,1);
  
    length = NUM2SIZET(v) + 1;

    if (opts[0] != Qundef) {
        minlength = NUM2SIZET(opts[0]);
        if (minlength > length) {
            length = minlength;
        }
    }

    if (NIL_P(weight)) {
        if (length > 4294967295ul) {
            return int8_bincount_64(self, length);
        } else {
            return int8_bincount_32(self, length);
        }
    } else {
        wclass = CLASS_OF(weight);
        if (wclass == numo_cSFloat) {
            return int8_bincount_sf(self, weight, length);
        } else {
            return int8_bincount_df(self, weight, length);
        }
    }
}

#clip(min, max) ⇒ Numo::NArray

Clip array elements by [min,max]. If either of min or max is nil, one side is clipped.

Examples:

a = Numo::Int32.new(10).seq
p a.clip(1,8)
# Numo::Int32#shape=[10]
# [1, 1, 2, 3, 4, 5, 6, 7, 8, 8]

p a
# Numo::Int32#shape=[10]
# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

p a.inplace.clip(3,6)
# Numo::Int32(view)#shape=[10]
# [3, 3, 3, 3, 4, 5, 6, 6, 6, 6]

p a
# Numo::Int32#shape=[10]
# [3, 3, 3, 3, 4, 5, 6, 6, 6, 6]

p a = Numo::Int32.new(10).seq
# Numo::Int32#shape=[10]
# [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

p a.clip([3,4,1,1,1,4,4,4,4,4], 8)
# Numo::Int32#shape=[10]
# [3, 4, 2, 3, 4, 5, 6, 7, 8, 8]

Parameters:

Returns:



3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
 
# File 'ext/numo/narray/types/int8.c', line 3579

static VALUE
int8_clip(VALUE self, VALUE min, VALUE max)
{
    ndfunc_arg_in_t ain[3] = {{Qnil,0},{cT,0},{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf_min = { iter_int8_clip_min, STRIDE_LOOP, 2, 1, ain, aout };
    ndfunc_t ndf_max = { iter_int8_clip_max, STRIDE_LOOP, 2, 1, ain, aout };
    ndfunc_t ndf_both = { iter_int8_clip, STRIDE_LOOP, 3, 1, ain, aout };

    if (RTEST(min)) {
        if (RTEST(max)) {
            return na_ndloop(&ndf_both, 3, self, min, max);
        } else {
            return na_ndloop(&ndf_min, 2, self, min);
        }
    } else {
        if (RTEST(max)) {
            return na_ndloop(&ndf_max, 2, self, max);
        }
    }
    rb_raise(rb_eArgError,"min and max are not given");
    return Qnil;
}

#coerce_cast(type) ⇒ nil

return NArray with cast to the type of self.

Returns:

  • (nil) 


1425
1426
1427
1428
1429
 
# File 'ext/numo/narray/types/int8.c', line 1425

static VALUE
int8_coerce_cast(VALUE self, VALUE type)
{
    return Qnil;
}

#cumprod(axis: nil, nan: false) ⇒ Numo::Int8

cumprod of self.

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

  • nan (TrueClass) —

    If true, apply NaN-aware algorithm (avoid NaN if exists).

Returns:



4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
 
# File 'ext/numo/narray/types/int8.c', line 4491

static VALUE
int8_cumprod(int argc, VALUE *argv, VALUE self)
{
    VALUE reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_cumprod, STRIDE_LOOP|NDF_FLAT_REDUCE|NDF_CUM,
                     2, 1, ain, aout };

  
#line 46 "gen/tmpl/cum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    return na_ndloop(&ndf, 2, self, reduce);
}

#cumsum(axis: nil, nan: false) ⇒ Numo::Int8

cumsum of self.

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

  • nan (TrueClass) —

    If true, apply NaN-aware algorithm (avoid NaN if exists).

Returns:



4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
 
# File 'ext/numo/narray/types/int8.c', line 4440

static VALUE
int8_cumsum(int argc, VALUE *argv, VALUE self)
{
    VALUE reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_cumsum, STRIDE_LOOP|NDF_FLAT_REDUCE|NDF_CUM,
                     2, 1, ain, aout };

  
#line 46 "gen/tmpl/cum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    return na_ndloop(&ndf, 2, self, reduce);
}

#divmod(other) ⇒ Numo::NArray

Binary divmod.

Parameters:

Returns:



2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
 
# File 'ext/numo/narray/types/int8.c', line 2370

static VALUE
int8_divmod(VALUE self, VALUE other)
{
    
#line 50 "gen/tmpl/binary2.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_divmod_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_divmod, 1, other);
    }
    
}

#each ⇒ Numo::NArray

Calls the given block once for each element in self, passing that element as a parameter. For a block {|x| … }

Yields:

  • (x) —

    x is element of NArray.

Returns:



1686
1687
1688
1689
1690
1691
1692
1693
1694
 
# File 'ext/numo/narray/types/int8.c', line 1686

static VALUE
int8_each(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{Qnil,0}};
    ndfunc_t ndf = {iter_int8_each, FULL_LOOP_NIP, 1,0, ain,0};

    na_ndloop(&ndf, 1, self);
    return self;
}

#each_with_index ⇒ Numo::NArray

Invokes the given block once for each element of self, passing that element and indices along each axis as parameters. For a block {|x,i,j,…| … }

Yields:

  • (x, i, j, ...) —

    x is an element, i,j,… are multidimensional indices.

Returns:



1819
1820
1821
1822
1823
1824
1825
1826
1827
 
# File 'ext/numo/narray/types/int8.c', line 1819

static VALUE
int8_each_with_index(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{Qnil,0}};
    ndfunc_t ndf = {iter_int8_each_with_index, FULL_LOOP_NIP, 1,0, ain,0};

    na_ndloop_with_index(&ndf, 1, self);
    return self;
}

#eq(other) ⇒ Numo::Bit Also known as: nearly_eq

Comparison eq other.

Parameters:

Returns:



2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
 
# File 'ext/numo/narray/types/int8.c', line 2774

static VALUE
int8_eq(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_eq_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_eq, 1, other);
    }
    
}

#extract ⇒ Numeric, Numo::NArray

Extract an element only if self is a dimensionless NArray. — Extract element value as Ruby Object if self is a dimensionless NArray, otherwise returns self.

Returns:



178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
 
# File 'ext/numo/narray/types/int8.c', line 178

static VALUE
int8_extract(VALUE self)
{
    volatile VALUE v;
    char *ptr;
    narray_t *na;
    GetNArray(self,na);

    if (na->ndim==0) {
        ptr = na_get_pointer_for_read(self) + na_get_offset(self);
        v = m_extract(ptr);
        na_release_lock(self);
        return v;
    }
    return self;
}

#eye([element,offset]) ⇒ Numo::Int8

Eye: Set a value to diagonal components, set 0 to non-diagonal components.

Parameters:

  • element (Numeric) —

    Diagonal element to be stored. Default is 1.

  • offset (Integer) —

    Diagonal offset from the main diagonal. The default is 0. k>0 for diagonals above the main diagonal, and k<0 for diagonals below the main diagonal.

Returns:



4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
 
# File 'ext/numo/narray/types/int8.c', line 4730

static VALUE
int8_eye(int argc, VALUE *argv, VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{OVERWRITE,2}};
    ndfunc_t ndf = {iter_int8_eye, NO_LOOP, 1,0, ain,0};
    ssize_t kofs;
    dtype data;
    char *g;
    int nd;
    narray_t *na;

    // check arguments
    if (argc > 2) {
        rb_raise(rb_eArgError,"too many arguments (%d for 0..2)",argc);
    } else if (argc == 2) {
        data = m_num_to_data(argv[0]);
        kofs = NUM2SSIZET(argv[1]);
    } else if (argc == 1) {
        data = m_num_to_data(argv[0]);
        kofs = 0;
    } else {
        data = m_one;
        kofs = 0;
    }

    GetNArray(self,na);
    nd = na->ndim;
    if (nd < 2) {
        rb_raise(nary_eDimensionError,"less than 2-d array");
    }

    // Diagonal offset from the main diagonal.
    if (kofs >= 0) {
        if ((size_t)(kofs) >= na->shape[nd-1]) {
            rb_raise(rb_eArgError,"invalid diagonal offset(%"SZF"d) for "
                     "last dimension size(%"SZF"d)",kofs,na->shape[nd-1]);
        }
    } else {
        if ((size_t)(-kofs) >= na->shape[nd-2]) {
            rb_raise(rb_eArgError,"invalid diagonal offset(%"SZF"d) for "
                     "last-1 dimension size(%"SZF"d)",kofs,na->shape[nd-2]);
        }
    }

    g = ALLOCA_N(char,sizeof(ssize_t)+sizeof(dtype));
    *(ssize_t*)g = kofs;
    *(dtype*)(g+sizeof(ssize_t)) = data;

    na_ndloop3(&ndf, g, 1, self);
    return self;
}

#fill(other) ⇒ Numo::Int8

Fill elements with other.

Parameters:

  • other (Numeric)

Returns:



1506
1507
1508
1509
1510
1511
1512
1513
1514
 
# File 'ext/numo/narray/types/int8.c', line 1506

static VALUE
int8_fill(VALUE self, VALUE val)
{
    ndfunc_arg_in_t ain[2] = {{OVERWRITE,0},{sym_option}};
    ndfunc_t ndf = { iter_int8_fill, FULL_LOOP, 2, 0, ain, 0 };

    na_ndloop(&ndf, 2, self, val);
    return self;
}

#format(format) ⇒ Numo::RObject

Format elements into strings.

Parameters:

  • format (String)

Returns:



1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
 
# File 'ext/numo/narray/types/int8.c', line 1566

static VALUE
int8_format(int argc, VALUE *argv, VALUE self)
{
    VALUE fmt=Qnil;

    ndfunc_arg_in_t ain[2] = {{Qnil,0},{sym_option}};
    ndfunc_arg_out_t aout[1] = {{numo_cRObject,0}};
    ndfunc_t ndf = { iter_int8_format, FULL_LOOP_NIP, 2, 1, ain, aout };

    rb_scan_args(argc, argv, "01", &fmt);
    return na_ndloop(&ndf, 2, self, fmt);
}

#format_to_a(format) ⇒ Array

Format elements into strings.

Parameters:

  • format (String)

Returns:

  • (Array) —

    array of formated strings.



1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
 
# File 'ext/numo/narray/types/int8.c', line 1617

static VALUE
int8_format_to_a(int argc, VALUE *argv, VALUE self)
{
    volatile VALUE fmt=Qnil;
    ndfunc_arg_in_t ain[3] = {{Qnil,0},{sym_loop_opt},{sym_option}};
    ndfunc_arg_out_t aout[1] = {{rb_cArray,0}}; // dummy?
    ndfunc_t ndf = { iter_int8_format_to_a, FULL_LOOP_NIP, 3, 1, ain, aout };

    rb_scan_args(argc, argv, "01", &fmt);
    return na_ndloop_cast_narray_to_rarray(&ndf, self, fmt);
}

#ge(other) ⇒ Numo::Bit Also known as: >=

Comparison ge other.

Parameters:

Returns:



3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
 
# File 'ext/numo/narray/types/int8.c', line 3348

static VALUE
int8_ge(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_ge_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_ge, 1, other);
    }
    
}

#gt(other) ⇒ Numo::Bit Also known as: >

Comparison gt other.

Parameters:

Returns:



3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
 
# File 'ext/numo/narray/types/int8.c', line 3291

static VALUE
int8_gt(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_gt_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_gt, 1, other);
    }
    
}

#inspect ⇒ String

Returns a string containing a human-readable representation of NArray.

Returns:

  • (String) 


1644
1645
1646
1647
1648
 
# File 'ext/numo/narray/types/int8.c', line 1644

VALUE
int8_inspect(VALUE ary)
{
    return na_ndloop_inspect(ary, iter_int8_inspect, Qnil);
}

#le(other) ⇒ Numo::Bit Also known as: <=

Comparison le other.

Parameters:

Returns:



3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
 
# File 'ext/numo/narray/types/int8.c', line 3462

static VALUE
int8_le(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_le_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_le, 1, other);
    }
    
}

#lt(other) ⇒ Numo::Bit Also known as: <

Comparison lt other.

Parameters:

Returns:



3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
 
# File 'ext/numo/narray/types/int8.c', line 3405

static VALUE
int8_lt(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_lt_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_lt, 1, other);
    }
    
}

#map ⇒ Numo::Int8

Unary map.

Returns:



1752
1753
1754
1755
1756
1757
1758
1759
1760
 
# File 'ext/numo/narray/types/int8.c', line 1752

static VALUE
int8_map(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_map, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}

#map_with_index ⇒ Numo::NArray

Invokes the given block once for each element of self, passing that element and indices along each axis as parameters. Creates a new NArray containing the values returned by the block. Inplace option is allowed, i.e., nary.inplace.map overwrites nary.

For a block { x,i,j,… … }

Yields:

  • (x, i, j, ...) —

    x is an element, i,j,… are multidimensional indices.

Returns:



1916
1917
1918
1919
1920
1921
1922
1923
1924
 
# File 'ext/numo/narray/types/int8.c', line 1916

static VALUE
int8_map_with_index(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{Qnil,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_map_with_index, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop_with_index(&ndf, 1, self);
}

#max(axis: nil, keepdims: false) ⇒ Numo::Int8

max of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
 
# File 'ext/numo/narray/types/int8.c', line 3760

static VALUE
int8_max(int argc, VALUE *argv, VALUE self)
{
    VALUE v, reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_max, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE, 2, 1, ain, aout };

  
#line 40 "gen/tmpl/accum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    v =  na_ndloop(&ndf, 2, self, reduce);
  
    return int8_extract(v);
  
#line 48 "gen/tmpl/accum.c"
}

#max_index(axis: nil) ⇒ Integer, Numo::Int

max_index. Return an index of result.

Examples:

Numo::NArray[3,4,1,2].min_index => 3

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

Returns:

  • (Integer, Numo::Int) —

    returns result index of max_index.



3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
 
# File 'ext/numo/narray/types/int8.c', line 3875

static VALUE
int8_max_index(int argc, VALUE *argv, VALUE self)
{
    narray_t *na;
    VALUE idx, reduce;
    ndfunc_arg_in_t ain[3] = {{Qnil,0},{Qnil,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{0,0,0}};
    ndfunc_t ndf = {0, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE|NDF_EXTRACT, 3,1, ain,aout};

    GetNArray(self,na);
    if (na->ndim==0) {
        return INT2FIX(0);
    }
    if (na->size > (~(u_int32_t)0)) {
        aout[0].type = numo_cInt64;
        idx = nary_new(numo_cInt64, na->ndim, na->shape);
        ndf.func = iter_int8_max_index_index64;
      
#line 56 "gen/tmpl/accum_index.c"
        reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
      
    } else {
        aout[0].type = numo_cInt32;
        idx = nary_new(numo_cInt32, na->ndim, na->shape);
        ndf.func = iter_int8_max_index_index32;
      
#line 65 "gen/tmpl/accum_index.c"
        reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
      
    }
    rb_funcall(idx, rb_intern("seq"), 0);

    return na_ndloop(&ndf, 3, self, idx, reduce);
}

#median(axis: nil, keepdims: false) ⇒ Numo::Int8

median of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
 
# File 'ext/numo/narray/types/int8.c', line 5482

static VALUE
int8_median(int argc, VALUE *argv, VALUE self)
{
    VALUE reduce;
    ndfunc_arg_in_t ain[2] = {{OVERWRITE,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{INT2FIX(0),0}};
    ndfunc_t ndf = {0, NDF_HAS_LOOP|NDF_FLAT_REDUCE, 2,1, ain,aout};

    self = na_copy(self); // as temporary buffer
  
#line 60 "gen/tmpl/median.c"
    ndf.func = iter_int8_median;
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    return na_ndloop(&ndf, 2, self, reduce);
}

#min(axis: nil, keepdims: false) ⇒ Numo::Int8

min of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
 
# File 'ext/numo/narray/types/int8.c', line 3716

static VALUE
int8_min(int argc, VALUE *argv, VALUE self)
{
    VALUE v, reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_min, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE, 2, 1, ain, aout };

  
#line 40 "gen/tmpl/accum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    v =  na_ndloop(&ndf, 2, self, reduce);
  
    return int8_extract(v);
  
#line 48 "gen/tmpl/accum.c"
}

#min_index(axis: nil) ⇒ Integer, Numo::Int

min_index. Return an index of result.

Examples:

Numo::NArray[3,4,1,2].min_index => 3

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

Returns:

  • (Integer, Numo::Int) —

    returns result index of min_index.



3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
 
# File 'ext/numo/narray/types/int8.c', line 3962

static VALUE
int8_min_index(int argc, VALUE *argv, VALUE self)
{
    narray_t *na;
    VALUE idx, reduce;
    ndfunc_arg_in_t ain[3] = {{Qnil,0},{Qnil,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{0,0,0}};
    ndfunc_t ndf = {0, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE|NDF_EXTRACT, 3,1, ain,aout};

    GetNArray(self,na);
    if (na->ndim==0) {
        return INT2FIX(0);
    }
    if (na->size > (~(u_int32_t)0)) {
        aout[0].type = numo_cInt64;
        idx = nary_new(numo_cInt64, na->ndim, na->shape);
        ndf.func = iter_int8_min_index_index64;
      
#line 56 "gen/tmpl/accum_index.c"
        reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
      
    } else {
        aout[0].type = numo_cInt32;
        idx = nary_new(numo_cInt32, na->ndim, na->shape);
        ndf.func = iter_int8_min_index_index32;
      
#line 65 "gen/tmpl/accum_index.c"
        reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
      
    }
    rb_funcall(idx, rb_intern("seq"), 0);

    return na_ndloop(&ndf, 3, self, idx, reduce);
}

#minmax(axis: nil, keepdims: false) ⇒ Numo::Int8

minmax of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
 
# File 'ext/numo/narray/types/int8.c', line 4025

static VALUE
int8_minmax(int argc, VALUE *argv, VALUE self)
{
    VALUE reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[2] = {{cT,0},{cT,0}};
    ndfunc_t ndf = {iter_int8_minmax, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE|NDF_EXTRACT, 2,2, ain,aout};

  
#line 43 "gen/tmpl/minmax.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    return na_ndloop(&ndf, 2, self, reduce);
}

#mulsum(other, axis: nil, keepdims: false) ⇒ Numo::NArray

Binary mulsum.

Parameters:

  • other (Numo::NArray, Numeric)
  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
 
# File 'ext/numo/narray/types/int8.c', line 4580

static VALUE
int8_mulsum(int argc, VALUE *argv, VALUE self)
{
    //
    VALUE klass, v;
    //
    if (argc < 1) {
        rb_raise(rb_eArgError,"wrong number of arguments (%d for >=1)",argc);
    }
    //
#line 92 "gen/tmpl/accum_binary.c"
    klass = na_upcast(CLASS_OF(self),CLASS_OF(argv[0]));
    if (klass==cT) {
        return int8_mulsum_self(argc, argv, self);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall2(v, rb_intern("mulsum"), argc, argv);
    }
    //
}

#ne(other) ⇒ Numo::Bit

Comparison ne other.

Parameters:

Returns:



2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
 
# File 'ext/numo/narray/types/int8.c', line 2831

static VALUE
int8_ne(VALUE self, VALUE other)
{
    
#line 46 "gen/tmpl/cond_binary.c"
    VALUE klass, v;
    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_ne_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, id_ne, 1, other);
    }
    
}

#poly(a0, a1, ...) ⇒ Numo::Int8

Polynomial.: a0 + a1x + a2x2 + a3x**3 + … + anxn

Parameters:

Returns:



4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
 
# File 'ext/numo/narray/types/int8.c', line 4937

static VALUE
int8_poly(VALUE self, VALUE args)
{
    int argc, i;
    VALUE *argv;
    volatile VALUE v, a;
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_poly, NO_LOOP, 0, 1, 0, aout };

    argc = RARRAY_LEN(args);
    ndf.nin = argc+1;
    ndf.ain = ALLOCA_N(ndfunc_arg_in_t,argc+1);
    for (i=0; i<argc+1; i++) {
        ndf.ain[i].type = cT;
    }
    argv = ALLOCA_N(VALUE,argc+1);
    argv[0] = self;
    for (i=0; i<argc; i++) {
        argv[i+1] = RARRAY_PTR(args)[i];
    }
    a = rb_ary_new4(argc+1, argv);
    v = na_ndloop2(&ndf, a);
    return int8_extract(v);
}

#prod(axis: nil, keepdims: false) ⇒ Numo::Int8

prod of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
 
# File 'ext/numo/narray/types/int8.c', line 3672

static VALUE
int8_prod(int argc, VALUE *argv, VALUE self)
{
    VALUE v, reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_prod, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE, 2, 1, ain, aout };

  
#line 40 "gen/tmpl/accum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    v =  na_ndloop(&ndf, 2, self, reduce);
  
    return int8_extract(v);
  
#line 48 "gen/tmpl/accum.c"
}

#ptp(axis: nil, keepdims: false) ⇒ Numo::Int8

ptp of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
 
# File 'ext/numo/narray/types/int8.c', line 3804

static VALUE
int8_ptp(int argc, VALUE *argv, VALUE self)
{
    VALUE v, reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_ptp, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE, 2, 1, ain, aout };

  
#line 40 "gen/tmpl/accum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    v =  na_ndloop(&ndf, 2, self, reduce);
  
    return int8_extract(v);
  
#line 48 "gen/tmpl/accum.c"
}

#rand([[low],high]) ⇒ Numo::Int8

Generate uniformly distributed random numbers on self narray.

Examples:

Numo::DFloat.new(6).rand
=> Numo::DFloat#shape=[6]
   [0.0617545, 0.373067, 0.794815, 0.201042, 0.116041, 0.344032]
Numo::DComplex.new(6).rand(5+5i)
=> Numo::DComplex#shape=[6]
   [2.69974+3.68908i, 0.825443+0.254414i, 0.540323+0.34354i, 4.52061+2.39322i, ...]
Numo::Int32.new(6).rand(2,5)
=> Numo::Int32#shape=[6]
   [4, 3, 3, 2, 4, 2]

Parameters:

  • low (Numeric) —

    lower inclusive boundary of random numbers. (default=0)

  • high (Numeric) —

    upper exclusive boundary of random numbers. (default=1 or 1+1i for complex types)

Returns:



4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
 
# File 'ext/numo/narray/types/int8.c', line 4880

static VALUE
int8_rand(int argc, VALUE *args, VALUE self)
{
    rand_opt_t g;
    VALUE v1=Qnil, v2=Qnil;
    dtype high;
    ndfunc_arg_in_t ain[1] = {{OVERWRITE,0}};
    ndfunc_t ndf = {iter_int8_rand, FULL_LOOP, 1,0, ain,0};

    
    rb_scan_args(argc, args, "11", &v1, &v2);
    if (v2==Qnil) {
        g.low = m_zero;
        g.max = high = m_num_to_data(v1);
    
#line 153 "gen/tmpl/rand.c"
    } else {
        g.low = m_num_to_data(v1);
        high = m_num_to_data(v2);
        g.max = m_sub(high,g.low);
    }
    
    if (high <= g.low) {
        rb_raise(rb_eArgError,"high must be larger than low");
    }
    
    na_ndloop3(&ndf, &g, 1, self);
    return self;
}

#reciprocal ⇒ Numo::Int8

Unary reciprocal.

Returns:



2588
2589
2590
2591
2592
2593
2594
2595
2596
 
# File 'ext/numo/narray/types/int8.c', line 2588

static VALUE
int8_reciprocal(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_reciprocal, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}

#seq([beg,[step]]) ⇒ Numo::Int8 Also known as: indgen

Set linear sequence of numbers to self. The sequence is obtained from beg+i*step where i is 1-dimensional index.

Examples:

Numo::DFloat.new(6).seq(1,-0.2)
=> Numo::DFloat#shape=[6]
   [1, 0.8, 0.6, 0.4, 0.2, 0]
Numo::DComplex.new(6).seq(1,-0.2+0.2i)
=> Numo::DComplex#shape=[6]
   [1+0i, 0.8+0.2i, 0.6+0.4i, 0.4+0.6i, 0.2+0.8i, 0+1i]

Parameters:

  • beg (Numeric) —

    begining of sequence. (default=0)

  • step (Numeric) —

    step of sequence. (default=1)

Returns:



4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
 
# File 'ext/numo/narray/types/int8.c', line 4666

static VALUE
int8_seq(int argc, VALUE *args, VALUE self)
{
    seq_opt_t *g;
    VALUE vbeg=Qnil, vstep=Qnil;
    ndfunc_arg_in_t ain[1] = {{OVERWRITE,0}};
    ndfunc_t ndf = {iter_int8_seq, FULL_LOOP, 1,0, ain,0};

    g = ALLOCA_N(seq_opt_t,1);
    g->beg = m_zero;
    g->step = m_one;
    g->count = 0;
    rb_scan_args(argc, args, "02", &vbeg, &vstep);
#line 83 "gen/tmpl/seq.c"
    if (vbeg!=Qnil) {g->beg = NUM2DBL(vbeg);}
    if (vstep!=Qnil) {g->step = NUM2DBL(vstep);}

#line 90 "gen/tmpl/seq.c"
    na_ndloop3(&ndf, g, 1, self);
    return self;
}

#sign ⇒ Numo::Int8

Unary sign.

Returns:



2654
2655
2656
2657
2658
2659
2660
2661
2662
 
# File 'ext/numo/narray/types/int8.c', line 2654

static VALUE
int8_sign(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_sign, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}

#sort(axis: nil) ⇒ Numo::Int8

sort of self.

Examples:

Numo::DFloat[3,4,1,2].sort => Numo::DFloat[1,2,3,4]

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

Returns:



5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
 
# File 'ext/numo/narray/types/int8.c', line 5133

static VALUE
int8_sort(int argc, VALUE *argv, VALUE self)
{
    VALUE reduce;
    ndfunc_arg_in_t ain[2] = {{OVERWRITE,0},{sym_reduce,0}};
    ndfunc_t ndf = {0, STRIDE_LOOP|NDF_FLAT_REDUCE, 2,0, ain,0};

    if (!TEST_INPLACE(self)) {
        self = na_copy(self);
    }
  
#line 42 "gen/tmpl/sort.c"
    ndf.func = iter_int8_sort;
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    na_ndloop(&ndf, 2, self, reduce);
    return self;
}

#sort_index(axis: nil) ⇒ Integer, Numo::Int

sort_index. Returns an index array of sort result.

Examples:

Numo::NArray[3,4,1,2].sort_index => Numo::Int32[2,3,0,1]

Parameters:

  • axis (Numeric, Array, Range) —

    Affected dimensions.

Returns:

  • (Integer, Numo::Int) —

    returns result index of sort_index.



5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
 
# File 'ext/numo/narray/types/int8.c', line 5399

static VALUE
int8_sort_index(int argc, VALUE *argv, VALUE self)
{
    size_t size;
    narray_t *na;
    VALUE idx, tmp, reduce, res;
    char *buf;
    ndfunc_arg_in_t ain[3] = {{cT,0},{0,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{0,0,0}};
    ndfunc_t ndf = {0, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE|NDF_CUM, 3,1, ain,aout};

    GetNArray(self,na);
    if (na->ndim==0) {
        return INT2FIX(0);
    }
    if (na->size > (~(u_int32_t)0)) {
        ain[1].type =
        aout[0].type = numo_cInt64;
        idx = nary_new(numo_cInt64, na->ndim, na->shape);
       
#line 84 "gen/tmpl/sort_index.c"
         ndf.func = int8_index64_qsort;
         reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
       
    } else {
        ain[1].type =
        aout[0].type = numo_cInt32;
        idx = nary_new(numo_cInt32, na->ndim, na->shape);
       
#line 96 "gen/tmpl/sort_index.c"
         ndf.func = int8_index32_qsort;
         reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
       
    }
    rb_funcall(idx, rb_intern("seq"), 0);

    size = na->size*sizeof(void*); // max capa
    buf = rb_alloc_tmp_buffer(&tmp, size);
    res = na_ndloop3(&ndf, buf, 3, self, idx, reduce);
    rb_free_tmp_buffer(&tmp);
    return res;
}

#square ⇒ Numo::Int8

Unary square.

Returns:



2720
2721
2722
2723
2724
2725
2726
2727
2728
 
# File 'ext/numo/narray/types/int8.c', line 2720

static VALUE
int8_square(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_square, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}

#store(other) ⇒ Numo::Int8

Store elements to Numo::Int8 from other.

Parameters:

  • other (Object)

Returns:



1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
 
# File 'ext/numo/narray/types/int8.c', line 1010

static VALUE
int8_store(VALUE self, VALUE obj)
{
    VALUE r, klass;

    klass = CLASS_OF(obj);

    
    if (klass==numo_cInt8) {
        int8_store_int8(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (IS_INTEGER_CLASS(klass) || klass==rb_cFloat || klass==rb_cComplex) {
        int8_store_numeric(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cBit) {
        int8_store_bit(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cDFloat) {
        int8_store_dfloat(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cSFloat) {
        int8_store_sfloat(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cInt64) {
        int8_store_int64(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cInt32) {
        int8_store_int32(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cInt16) {
        int8_store_int16(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cUInt64) {
        int8_store_uint64(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cUInt32) {
        int8_store_uint32(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cUInt16) {
        int8_store_uint16(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cUInt8) {
        int8_store_uint8(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==numo_cRObject) {
        int8_store_robject(self,obj);
        return self;
    }
    
#line 19 "gen/tmpl/store.c"
    if (klass==rb_cArray) {
        int8_store_array(self,obj);
        return self;
    }
    

    if (IsNArray(obj)) {
        r = rb_funcall(obj, rb_intern("coerce_cast"), 1, cT);
        if (CLASS_OF(r)==cT) {
            int8_store(self,r);
            return self;
        }
    }

    
#line 36 "gen/tmpl/store.c"
    rb_raise(nary_eCastError, "unknown conversion from %s to %s",
             rb_class2name(CLASS_OF(obj)),
             rb_class2name(CLASS_OF(self)));
    
    return self;
}

#sum(axis: nil, keepdims: false) ⇒ Numo::Int8

sum of self.

Parameters:

  • axis (Numeric, Array, Range) —

    (keyword) Affected dimensions.

  • keepdims (TrueClass) —

    (keyword) If true, the reduced axes are left in the result array as dimensions with size one.

Returns:



3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
 
# File 'ext/numo/narray/types/int8.c', line 3628

static VALUE
int8_sum(int argc, VALUE *argv, VALUE self)
{
    VALUE v, reduce;
    ndfunc_arg_in_t ain[2] = {{cT,0},{sym_reduce,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = { iter_int8_sum, STRIDE_LOOP_NIP|NDF_FLAT_REDUCE, 2, 1, ain, aout };

  
#line 40 "gen/tmpl/accum.c"
    reduce = na_reduce_dimension(argc, argv, 1, &self, &ndf, 0);
  
    v =  na_ndloop(&ndf, 2, self, reduce);
  
    return int8_extract(v);
  
#line 48 "gen/tmpl/accum.c"
}

#to_a ⇒ Array

Convert self to Array.

Returns:

  • (Array) 


1466
1467
1468
1469
1470
1471
1472
1473
 
# File 'ext/numo/narray/types/int8.c', line 1466

static VALUE
int8_to_a(VALUE self)
{
    ndfunc_arg_in_t ain[3] = {{Qnil,0},{sym_loop_opt},{sym_option}};
    ndfunc_arg_out_t aout[1] = {{rb_cArray,0}}; // dummy?
    ndfunc_t ndf = { iter_int8_to_a, FULL_LOOP_NIP, 3, 1, ain, aout };
    return na_ndloop_cast_narray_to_rarray(&ndf, self, Qnil);
}

#|(other) ⇒ Numo::NArray

Binary bit_or.

Parameters:

Returns:



2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
 
# File 'ext/numo/narray/types/int8.c', line 2964

static VALUE
int8_bit_or(VALUE self, VALUE other)
{
    
#line 87 "gen/tmpl/binary.c"
    VALUE klass, v;

    klass = na_upcast(CLASS_OF(self),CLASS_OF(other));
    if (klass==cT) {
        return int8_bit_or_self(self, other);
    } else {
        v = rb_funcall(klass, id_cast, 1, self);
        return rb_funcall(v, '|', 1, other);
    }
    
}

#~ ⇒ Numo::Int8

Unary bit_not.

Returns:



3103
3104
3105
3106
3107
3108
3109
3110
3111
 
# File 'ext/numo/narray/types/int8.c', line 3103

static VALUE
int8_bit_not(VALUE self)
{
    ndfunc_arg_in_t ain[1] = {{cT,0}};
    ndfunc_arg_out_t aout[1] = {{cT,0}};
    ndfunc_t ndf = {iter_int8_bit_not, FULL_LOOP, 1,1, ain,aout};

    return na_ndloop(&ndf, 1, self);
}