Mercurial > hg > octave-lyh
annotate liboctave/array/CColVector.cc @ 17489:0ad2f93fd83c
doc: Fix a typo in findobj docstring.
* scripts/plot/findobj.m: Use '3' instead of 'D' in findobj example of depth 3.
| author | Rik <rik@octave.org> |
|---|---|
| date | Wed, 25 Sep 2013 08:13:30 -0700 |
| parents | 648dabbb4c6b |
| children |
| rev | line source |
|---|---|
| 1993 | 1 // ColumnVector manipulations. |
| 458 | 2 /* |
| 3 | |
|
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4 Copyright (C) 1994-2012 John W. Eaton |
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5 Copyright (C) 2010 VZLU Prague |
| 458 | 6 |
| 7 This file is part of Octave. | |
| 8 | |
| 9 Octave is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published by the | |
| 7016 | 11 Free Software Foundation; either version 3 of the License, or (at your |
| 12 option) any later version. | |
| 458 | 13 |
| 14 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 7016 | 20 along with Octave; see the file COPYING. If not, see |
| 21 <http://www.gnu.org/licenses/>. | |
| 458 | 22 |
| 23 */ | |
| 24 | |
| 25 #ifdef HAVE_CONFIG_H | |
| 1192 | 26 #include <config.h> |
| 458 | 27 #endif |
| 28 | |
| 3503 | 29 #include <iostream> |
| 458 | 30 |
| 4669 | 31 #include "Array-util.h" |
| 1847 | 32 #include "f77-fcn.h" |
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33 #include "functor.h" |
| 1368 | 34 #include "lo-error.h" |
| 458 | 35 #include "mx-base.h" |
| 36 #include "mx-inlines.cc" | |
| 1650 | 37 #include "oct-cmplx.h" |
| 458 | 38 |
| 39 // Fortran functions we call. | |
| 40 | |
| 41 extern "C" | |
| 42 { | |
| 4552 | 43 F77_RET_T |
| 44 F77_FUNC (zgemv, ZGEMV) (F77_CONST_CHAR_ARG_DECL, | |
| 11518 | 45 const octave_idx_type&, const octave_idx_type&, |
| 46 const Complex&, const Complex*, | |
| 47 const octave_idx_type&, const Complex*, | |
| 48 const octave_idx_type&, const Complex&, | |
| 49 Complex*, const octave_idx_type& | |
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50 F77_CHAR_ARG_LEN_DECL); |
| 458 | 51 } |
| 52 | |
| 1360 | 53 // Complex Column Vector class |
| 458 | 54 |
| 55 ComplexColumnVector::ComplexColumnVector (const ColumnVector& a) | |
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56 : MArray<Complex> (a) |
| 458 | 57 { |
| 58 } | |
| 59 | |
| 2386 | 60 bool |
| 458 | 61 ComplexColumnVector::operator == (const ComplexColumnVector& a) const |
| 62 { | |
| 5275 | 63 octave_idx_type len = length (); |
| 458 | 64 if (len != a.length ()) |
| 65 return 0; | |
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66 return mx_inline_equal (len, data (), a.data ()); |
| 458 | 67 } |
| 68 | |
| 2386 | 69 bool |
| 458 | 70 ComplexColumnVector::operator != (const ComplexColumnVector& a) const |
| 71 { | |
| 72 return !(*this == a); | |
| 73 } | |
| 74 | |
| 75 // destructive insert/delete/reorder operations | |
| 76 | |
| 77 ComplexColumnVector& | |
| 5275 | 78 ComplexColumnVector::insert (const ColumnVector& a, octave_idx_type r) |
| 458 | 79 { |
| 5275 | 80 octave_idx_type a_len = a.length (); |
| 4316 | 81 |
| 1699 | 82 if (r < 0 || r + a_len > length ()) |
| 458 | 83 { |
| 84 (*current_liboctave_error_handler) ("range error for insert"); | |
| 85 return *this; | |
| 86 } | |
| 87 | |
| 4316 | 88 if (a_len > 0) |
| 89 { | |
| 90 make_unique (); | |
| 91 | |
| 5275 | 92 for (octave_idx_type i = 0; i < a_len; i++) |
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93 xelem (r+i) = a.elem (i); |
| 4316 | 94 } |
| 458 | 95 |
| 96 return *this; | |
| 97 } | |
| 98 | |
| 99 ComplexColumnVector& | |
| 5275 | 100 ComplexColumnVector::insert (const ComplexColumnVector& a, octave_idx_type r) |
| 458 | 101 { |
| 5275 | 102 octave_idx_type a_len = a.length (); |
| 4316 | 103 |
| 1699 | 104 if (r < 0 || r + a_len > length ()) |
| 458 | 105 { |
| 106 (*current_liboctave_error_handler) ("range error for insert"); | |
| 107 return *this; | |
| 108 } | |
| 109 | |
| 4316 | 110 if (a_len > 0) |
| 111 { | |
| 112 make_unique (); | |
| 113 | |
| 5275 | 114 for (octave_idx_type i = 0; i < a_len; i++) |
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115 xelem (r+i) = a.elem (i); |
| 4316 | 116 } |
| 458 | 117 |
| 118 return *this; | |
| 119 } | |
| 120 | |
| 121 ComplexColumnVector& | |
| 122 ComplexColumnVector::fill (double val) | |
| 123 { | |
| 5275 | 124 octave_idx_type len = length (); |
| 4316 | 125 |
| 458 | 126 if (len > 0) |
| 4316 | 127 { |
| 128 make_unique (); | |
| 129 | |
| 5275 | 130 for (octave_idx_type i = 0; i < len; i++) |
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131 xelem (i) = val; |
| 4316 | 132 } |
| 133 | |
| 458 | 134 return *this; |
| 135 } | |
| 136 | |
| 137 ComplexColumnVector& | |
| 138 ComplexColumnVector::fill (const Complex& val) | |
| 139 { | |
| 5275 | 140 octave_idx_type len = length (); |
| 4316 | 141 |
| 458 | 142 if (len > 0) |
| 4316 | 143 { |
| 144 make_unique (); | |
| 145 | |
| 5275 | 146 for (octave_idx_type i = 0; i < len; i++) |
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147 xelem (i) = val; |
| 4316 | 148 } |
| 149 | |
| 150 | |
| 458 | 151 return *this; |
| 152 } | |
| 153 | |
| 154 ComplexColumnVector& | |
| 5275 | 155 ComplexColumnVector::fill (double val, octave_idx_type r1, octave_idx_type r2) |
| 458 | 156 { |
| 5275 | 157 octave_idx_type len = length (); |
| 4316 | 158 |
| 458 | 159 if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len) |
| 160 { | |
| 161 (*current_liboctave_error_handler) ("range error for fill"); | |
| 162 return *this; | |
| 163 } | |
| 164 | |
| 5275 | 165 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 166 |
| 4316 | 167 if (r2 >= r1) |
| 168 { | |
| 169 make_unique (); | |
| 170 | |
| 5275 | 171 for (octave_idx_type i = r1; i <= r2; i++) |
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172 xelem (i) = val; |
| 4316 | 173 } |
| 458 | 174 |
| 175 return *this; | |
| 176 } | |
| 177 | |
| 178 ComplexColumnVector& | |
| 5275 | 179 ComplexColumnVector::fill (const Complex& val, octave_idx_type r1, octave_idx_type r2) |
| 458 | 180 { |
| 5275 | 181 octave_idx_type len = length (); |
| 4316 | 182 |
| 458 | 183 if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len) |
| 184 { | |
| 185 (*current_liboctave_error_handler) ("range error for fill"); | |
| 186 return *this; | |
| 187 } | |
| 188 | |
| 5275 | 189 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 190 |
| 4316 | 191 if (r2 >= r1) |
| 192 { | |
| 193 make_unique (); | |
| 194 | |
| 5275 | 195 for (octave_idx_type i = r1; i <= r2; i++) |
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196 xelem (i) = val; |
| 4316 | 197 } |
| 458 | 198 |
| 199 return *this; | |
| 200 } | |
| 201 | |
| 202 ComplexColumnVector | |
| 203 ComplexColumnVector::stack (const ColumnVector& a) const | |
| 204 { | |
| 5275 | 205 octave_idx_type len = length (); |
| 206 octave_idx_type nr_insert = len; | |
| 458 | 207 ComplexColumnVector retval (len + a.length ()); |
| 208 retval.insert (*this, 0); | |
| 209 retval.insert (a, nr_insert); | |
| 210 return retval; | |
| 211 } | |
| 212 | |
| 213 ComplexColumnVector | |
| 214 ComplexColumnVector::stack (const ComplexColumnVector& a) const | |
| 215 { | |
| 5275 | 216 octave_idx_type len = length (); |
| 217 octave_idx_type nr_insert = len; | |
| 458 | 218 ComplexColumnVector retval (len + a.length ()); |
| 219 retval.insert (*this, 0); | |
| 220 retval.insert (a, nr_insert); | |
| 221 return retval; | |
| 222 } | |
| 223 | |
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224 ComplexRowVector |
| 458 | 225 ComplexColumnVector::hermitian (void) const |
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226 { |
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227 return MArray<Complex>::hermitian (std::conj); |
| 458 | 228 } |
| 229 | |
| 230 ComplexRowVector | |
| 231 ComplexColumnVector::transpose (void) const | |
| 232 { | |
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233 return MArray<Complex>::transpose (); |
| 458 | 234 } |
| 235 | |
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236 ColumnVector |
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237 ComplexColumnVector::abs (void) const |
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238 { |
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239 return do_mx_unary_map<double, Complex, std::abs> (*this); |
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240 } |
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241 |
| 458 | 242 ComplexColumnVector |
| 243 conj (const ComplexColumnVector& a) | |
| 244 { | |
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245 return do_mx_unary_map<Complex, Complex, std::conj<double> > (a); |
| 458 | 246 } |
| 247 | |
| 248 // resize is the destructive equivalent for this one | |
| 249 | |
| 250 ComplexColumnVector | |
| 5275 | 251 ComplexColumnVector::extract (octave_idx_type r1, octave_idx_type r2) const |
| 458 | 252 { |
| 5275 | 253 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 254 |
| 5275 | 255 octave_idx_type new_r = r2 - r1 + 1; |
| 458 | 256 |
| 257 ComplexColumnVector result (new_r); | |
| 258 | |
| 5275 | 259 for (octave_idx_type i = 0; i < new_r; i++) |
| 458 | 260 result.elem (i) = elem (r1+i); |
| 261 | |
| 262 return result; | |
| 263 } | |
| 264 | |
| 4316 | 265 ComplexColumnVector |
| 5275 | 266 ComplexColumnVector::extract_n (octave_idx_type r1, octave_idx_type n) const |
| 4316 | 267 { |
| 268 ComplexColumnVector result (n); | |
| 269 | |
| 5275 | 270 for (octave_idx_type i = 0; i < n; i++) |
| 4316 | 271 result.elem (i) = elem (r1+i); |
| 272 | |
| 273 return result; | |
| 274 } | |
| 275 | |
| 458 | 276 // column vector by column vector -> column vector operations |
| 277 | |
| 278 ComplexColumnVector& | |
| 279 ComplexColumnVector::operator += (const ColumnVector& a) | |
| 280 { | |
| 5275 | 281 octave_idx_type len = length (); |
| 2386 | 282 |
| 5275 | 283 octave_idx_type a_len = a.length (); |
| 2386 | 284 |
| 285 if (len != a_len) | |
| 458 | 286 { |
| 2386 | 287 gripe_nonconformant ("operator +=", len, a_len); |
| 458 | 288 return *this; |
| 289 } | |
| 290 | |
| 291 if (len == 0) | |
| 292 return *this; | |
| 293 | |
| 294 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 295 | |
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296 mx_inline_add2 (len, d, a.data ()); |
| 458 | 297 return *this; |
| 298 } | |
| 299 | |
| 300 ComplexColumnVector& | |
| 301 ComplexColumnVector::operator -= (const ColumnVector& a) | |
| 302 { | |
| 5275 | 303 octave_idx_type len = length (); |
| 2386 | 304 |
| 5275 | 305 octave_idx_type a_len = a.length (); |
| 2386 | 306 |
| 307 if (len != a_len) | |
| 458 | 308 { |
| 2386 | 309 gripe_nonconformant ("operator -=", len, a_len); |
| 458 | 310 return *this; |
| 311 } | |
| 312 | |
| 313 if (len == 0) | |
| 314 return *this; | |
| 315 | |
| 316 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 317 | |
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318 mx_inline_sub2 (len, d, a.data ()); |
| 458 | 319 return *this; |
| 320 } | |
| 321 | |
| 1205 | 322 // matrix by column vector -> column vector operations |
| 323 | |
| 324 ComplexColumnVector | |
| 325 operator * (const ComplexMatrix& m, const ColumnVector& a) | |
| 326 { | |
| 327 ComplexColumnVector tmp (a); | |
| 328 return m * tmp; | |
| 329 } | |
| 330 | |
| 331 ComplexColumnVector | |
| 332 operator * (const ComplexMatrix& m, const ComplexColumnVector& a) | |
| 333 { | |
| 1947 | 334 ComplexColumnVector retval; |
| 335 | |
| 5275 | 336 octave_idx_type nr = m.rows (); |
| 337 octave_idx_type nc = m.cols (); | |
| 1947 | 338 |
| 5275 | 339 octave_idx_type a_len = a.length (); |
| 2386 | 340 |
| 341 if (nc != a_len) | |
| 342 gripe_nonconformant ("operator *", nr, nc, a_len, 1); | |
| 1947 | 343 else |
| 458 | 344 { |
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345 retval.clear (nr); |
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346 |
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347 if (nr != 0) |
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348 { |
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349 if (nc == 0) |
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350 retval.fill (0.0); |
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351 else |
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352 { |
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353 Complex *y = retval.fortran_vec (); |
| 1947 | 354 |
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355 F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("N", 1), |
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356 nr, nc, 1.0, m.data (), nr, |
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357 a.data (), 1, 0.0, y, 1 |
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358 F77_CHAR_ARG_LEN (1))); |
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359 } |
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360 } |
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361 |
| 458 | 362 } |
| 363 | |
| 1947 | 364 return retval; |
| 458 | 365 } |
| 366 | |
| 1205 | 367 // matrix by column vector -> column vector operations |
| 368 | |
| 369 ComplexColumnVector | |
| 370 operator * (const Matrix& m, const ComplexColumnVector& a) | |
| 371 { | |
| 372 ComplexMatrix tmp (m); | |
| 373 return tmp * a; | |
| 374 } | |
| 375 | |
| 376 // diagonal matrix by column vector -> column vector operations | |
| 377 | |
| 378 ComplexColumnVector | |
| 379 operator * (const DiagMatrix& m, const ComplexColumnVector& a) | |
| 380 { | |
| 5275 | 381 octave_idx_type nr = m.rows (); |
| 382 octave_idx_type nc = m.cols (); | |
| 2386 | 383 |
| 5275 | 384 octave_idx_type a_len = a.length (); |
| 2386 | 385 |
| 1205 | 386 if (nc != a_len) |
| 387 { | |
| 2386 | 388 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 3585 | 389 return ComplexColumnVector (); |
| 1205 | 390 } |
| 391 | |
| 392 if (nc == 0 || nr == 0) | |
| 393 return ComplexColumnVector (0); | |
| 394 | |
| 395 ComplexColumnVector result (nr); | |
| 396 | |
| 5275 | 397 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 398 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 399 | |
| 5275 | 400 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 401 result.elem (i) = 0.0; |
| 402 | |
| 403 return result; | |
| 404 } | |
| 405 | |
| 406 ComplexColumnVector | |
| 407 operator * (const ComplexDiagMatrix& m, const ColumnVector& a) | |
| 408 { | |
| 5275 | 409 octave_idx_type nr = m.rows (); |
| 410 octave_idx_type nc = m.cols (); | |
| 2386 | 411 |
| 5275 | 412 octave_idx_type a_len = a.length (); |
| 2386 | 413 |
| 1205 | 414 if (nc != a_len) |
| 415 { | |
| 2386 | 416 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 1205 | 417 return ComplexColumnVector (); |
| 418 } | |
| 419 | |
| 420 if (nc == 0 || nr == 0) | |
| 421 return ComplexColumnVector (0); | |
| 422 | |
| 423 ComplexColumnVector result (nr); | |
| 424 | |
| 5275 | 425 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 426 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 427 | |
| 5275 | 428 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 429 result.elem (i) = 0.0; |
| 430 | |
| 431 return result; | |
| 432 } | |
| 433 | |
| 434 ComplexColumnVector | |
| 435 operator * (const ComplexDiagMatrix& m, const ComplexColumnVector& a) | |
| 436 { | |
| 5275 | 437 octave_idx_type nr = m.rows (); |
| 438 octave_idx_type nc = m.cols (); | |
| 2386 | 439 |
| 5275 | 440 octave_idx_type a_len = a.length (); |
| 2386 | 441 |
| 1205 | 442 if (nc != a_len) |
| 443 { | |
| 2386 | 444 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 1205 | 445 return ComplexColumnVector (); |
| 446 } | |
| 447 | |
| 448 if (nc == 0 || nr == 0) | |
| 449 return ComplexColumnVector (0); | |
| 450 | |
| 451 ComplexColumnVector result (nr); | |
| 452 | |
| 5275 | 453 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 454 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 455 | |
| 5275 | 456 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 457 result.elem (i) = 0.0; |
| 458 | |
| 459 return result; | |
| 460 } | |
| 461 | |
| 458 | 462 // other operations |
| 463 | |
| 464 Complex | |
| 465 ComplexColumnVector::min (void) const | |
| 466 { | |
| 5275 | 467 octave_idx_type len = length (); |
| 458 | 468 if (len == 0) |
| 469 return 0.0; | |
| 470 | |
| 471 Complex res = elem (0); | |
| 5260 | 472 double absres = std::abs (res); |
| 458 | 473 |
| 5275 | 474 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 475 if (std::abs (elem (i)) < absres) |
| 458 | 476 { |
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477 res = elem (i); |
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478 absres = std::abs (res); |
| 458 | 479 } |
| 480 | |
| 481 return res; | |
| 482 } | |
| 483 | |
| 484 Complex | |
| 485 ComplexColumnVector::max (void) const | |
| 486 { | |
| 5275 | 487 octave_idx_type len = length (); |
| 458 | 488 if (len == 0) |
| 489 return 0.0; | |
| 490 | |
| 491 Complex res = elem (0); | |
| 5260 | 492 double absres = std::abs (res); |
| 458 | 493 |
| 5275 | 494 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 495 if (std::abs (elem (i)) > absres) |
| 458 | 496 { |
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497 res = elem (i); |
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498 absres = std::abs (res); |
| 458 | 499 } |
| 500 | |
| 501 return res; | |
| 502 } | |
| 503 | |
| 504 // i/o | |
| 505 | |
| 3504 | 506 std::ostream& |
| 507 operator << (std::ostream& os, const ComplexColumnVector& a) | |
| 458 | 508 { |
| 509 // int field_width = os.precision () + 7; | |
| 5275 | 510 for (octave_idx_type i = 0; i < a.length (); i++) |
| 458 | 511 os << /* setw (field_width) << */ a.elem (i) << "\n"; |
| 512 return os; | |
| 513 } | |
| 514 | |
| 3504 | 515 std::istream& |
| 516 operator >> (std::istream& is, ComplexColumnVector& a) | |
| 458 | 517 { |
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518 octave_idx_type len = a.length (); |
| 458 | 519 |
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520 if (len > 0) |
| 458 | 521 { |
| 522 double tmp; | |
| 5275 | 523 for (octave_idx_type i = 0; i < len; i++) |
| 458 | 524 { |
| 525 is >> tmp; | |
| 526 if (is) | |
| 527 a.elem (i) = tmp; | |
| 528 else | |
| 529 break; | |
| 530 } | |
| 531 } | |
| 532 | 532 return is; |
| 458 | 533 } |