Mercurial > octave-nkf
annotate liboctave/CColVector.cc @ 10363:a0728e81ed25
improve diag matrix interface & implementation
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Fri, 26 Feb 2010 11:44:38 +0100 |
| parents | 12884915a8e4 |
| children | 4d1fc073fbb7 |
| rev | line source |
|---|---|
| 1993 | 1 // ColumnVector manipulations. |
| 458 | 2 /* |
| 3 | |
| 7017 | 4 Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004, |
| 8920 | 5 2005, 2007, 2008 John W. Eaton |
| 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, | |
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45 const octave_idx_type&, const octave_idx_type&, const Complex&, |
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46 const Complex*, const octave_idx_type&, const Complex*, |
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47 const octave_idx_type&, const Complex&, Complex*, const octave_idx_type& |
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48 F77_CHAR_ARG_LEN_DECL); |
| 458 | 49 } |
| 50 | |
| 1360 | 51 // Complex Column Vector class |
| 458 | 52 |
| 53 ComplexColumnVector::ComplexColumnVector (const ColumnVector& a) | |
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54 : MArray<Complex> (a) |
| 458 | 55 { |
| 56 } | |
| 57 | |
| 2386 | 58 bool |
| 458 | 59 ComplexColumnVector::operator == (const ComplexColumnVector& a) const |
| 60 { | |
| 5275 | 61 octave_idx_type len = length (); |
| 458 | 62 if (len != a.length ()) |
| 63 return 0; | |
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64 return mx_inline_equal (len, data (), a.data ()); |
| 458 | 65 } |
| 66 | |
| 2386 | 67 bool |
| 458 | 68 ComplexColumnVector::operator != (const ComplexColumnVector& a) const |
| 69 { | |
| 70 return !(*this == a); | |
| 71 } | |
| 72 | |
| 73 // destructive insert/delete/reorder operations | |
| 74 | |
| 75 ComplexColumnVector& | |
| 5275 | 76 ComplexColumnVector::insert (const ColumnVector& a, octave_idx_type r) |
| 458 | 77 { |
| 5275 | 78 octave_idx_type a_len = a.length (); |
| 4316 | 79 |
| 1699 | 80 if (r < 0 || r + a_len > length ()) |
| 458 | 81 { |
| 82 (*current_liboctave_error_handler) ("range error for insert"); | |
| 83 return *this; | |
| 84 } | |
| 85 | |
| 4316 | 86 if (a_len > 0) |
| 87 { | |
| 88 make_unique (); | |
| 89 | |
| 5275 | 90 for (octave_idx_type i = 0; i < a_len; i++) |
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91 xelem (r+i) = a.elem (i); |
| 4316 | 92 } |
| 458 | 93 |
| 94 return *this; | |
| 95 } | |
| 96 | |
| 97 ComplexColumnVector& | |
| 5275 | 98 ComplexColumnVector::insert (const ComplexColumnVector& a, octave_idx_type r) |
| 458 | 99 { |
| 5275 | 100 octave_idx_type a_len = a.length (); |
| 4316 | 101 |
| 1699 | 102 if (r < 0 || r + a_len > length ()) |
| 458 | 103 { |
| 104 (*current_liboctave_error_handler) ("range error for insert"); | |
| 105 return *this; | |
| 106 } | |
| 107 | |
| 4316 | 108 if (a_len > 0) |
| 109 { | |
| 110 make_unique (); | |
| 111 | |
| 5275 | 112 for (octave_idx_type i = 0; i < a_len; i++) |
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113 xelem (r+i) = a.elem (i); |
| 4316 | 114 } |
| 458 | 115 |
| 116 return *this; | |
| 117 } | |
| 118 | |
| 119 ComplexColumnVector& | |
| 120 ComplexColumnVector::fill (double val) | |
| 121 { | |
| 5275 | 122 octave_idx_type len = length (); |
| 4316 | 123 |
| 458 | 124 if (len > 0) |
| 4316 | 125 { |
| 126 make_unique (); | |
| 127 | |
| 5275 | 128 for (octave_idx_type i = 0; i < len; i++) |
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129 xelem (i) = val; |
| 4316 | 130 } |
| 131 | |
| 458 | 132 return *this; |
| 133 } | |
| 134 | |
| 135 ComplexColumnVector& | |
| 136 ComplexColumnVector::fill (const Complex& val) | |
| 137 { | |
| 5275 | 138 octave_idx_type len = length (); |
| 4316 | 139 |
| 458 | 140 if (len > 0) |
| 4316 | 141 { |
| 142 make_unique (); | |
| 143 | |
| 5275 | 144 for (octave_idx_type i = 0; i < len; i++) |
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145 xelem (i) = val; |
| 4316 | 146 } |
| 147 | |
| 148 | |
| 458 | 149 return *this; |
| 150 } | |
| 151 | |
| 152 ComplexColumnVector& | |
| 5275 | 153 ComplexColumnVector::fill (double val, octave_idx_type r1, octave_idx_type r2) |
| 458 | 154 { |
| 5275 | 155 octave_idx_type len = length (); |
| 4316 | 156 |
| 458 | 157 if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len) |
| 158 { | |
| 159 (*current_liboctave_error_handler) ("range error for fill"); | |
| 160 return *this; | |
| 161 } | |
| 162 | |
| 5275 | 163 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 164 |
| 4316 | 165 if (r2 >= r1) |
| 166 { | |
| 167 make_unique (); | |
| 168 | |
| 5275 | 169 for (octave_idx_type i = r1; i <= r2; i++) |
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170 xelem (i) = val; |
| 4316 | 171 } |
| 458 | 172 |
| 173 return *this; | |
| 174 } | |
| 175 | |
| 176 ComplexColumnVector& | |
| 5275 | 177 ComplexColumnVector::fill (const Complex& val, octave_idx_type r1, octave_idx_type r2) |
| 458 | 178 { |
| 5275 | 179 octave_idx_type len = length (); |
| 4316 | 180 |
| 458 | 181 if (r1 < 0 || r2 < 0 || r1 >= len || r2 >= len) |
| 182 { | |
| 183 (*current_liboctave_error_handler) ("range error for fill"); | |
| 184 return *this; | |
| 185 } | |
| 186 | |
| 5275 | 187 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 188 |
| 4316 | 189 if (r2 >= r1) |
| 190 { | |
| 191 make_unique (); | |
| 192 | |
| 5275 | 193 for (octave_idx_type i = r1; i <= r2; i++) |
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194 xelem (i) = val; |
| 4316 | 195 } |
| 458 | 196 |
| 197 return *this; | |
| 198 } | |
| 199 | |
| 200 ComplexColumnVector | |
| 201 ComplexColumnVector::stack (const ColumnVector& a) const | |
| 202 { | |
| 5275 | 203 octave_idx_type len = length (); |
| 204 octave_idx_type nr_insert = len; | |
| 458 | 205 ComplexColumnVector retval (len + a.length ()); |
| 206 retval.insert (*this, 0); | |
| 207 retval.insert (a, nr_insert); | |
| 208 return retval; | |
| 209 } | |
| 210 | |
| 211 ComplexColumnVector | |
| 212 ComplexColumnVector::stack (const ComplexColumnVector& a) const | |
| 213 { | |
| 5275 | 214 octave_idx_type len = length (); |
| 215 octave_idx_type nr_insert = len; | |
| 458 | 216 ComplexColumnVector retval (len + a.length ()); |
| 217 retval.insert (*this, 0); | |
| 218 retval.insert (a, nr_insert); | |
| 219 return retval; | |
| 220 } | |
| 221 | |
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222 ComplexRowVector |
| 458 | 223 ComplexColumnVector::hermitian (void) const |
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224 { |
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225 return MArray<Complex>::hermitian (std::conj); |
| 458 | 226 } |
| 227 | |
| 228 ComplexRowVector | |
| 229 ComplexColumnVector::transpose (void) const | |
| 230 { | |
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231 return MArray<Complex>::transpose (); |
| 458 | 232 } |
| 233 | |
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234 ColumnVector |
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235 ComplexColumnVector::abs (void) const |
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236 { |
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237 return do_mx_unary_map<double, Complex, std::abs> (*this); |
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238 } |
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239 |
| 458 | 240 ComplexColumnVector |
| 241 conj (const ComplexColumnVector& a) | |
| 242 { | |
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243 return do_mx_unary_map<Complex, Complex, std::conj> (a); |
| 458 | 244 } |
| 245 | |
| 246 // resize is the destructive equivalent for this one | |
| 247 | |
| 248 ComplexColumnVector | |
| 5275 | 249 ComplexColumnVector::extract (octave_idx_type r1, octave_idx_type r2) const |
| 458 | 250 { |
| 5275 | 251 if (r1 > r2) { octave_idx_type tmp = r1; r1 = r2; r2 = tmp; } |
| 458 | 252 |
| 5275 | 253 octave_idx_type new_r = r2 - r1 + 1; |
| 458 | 254 |
| 255 ComplexColumnVector result (new_r); | |
| 256 | |
| 5275 | 257 for (octave_idx_type i = 0; i < new_r; i++) |
| 458 | 258 result.elem (i) = elem (r1+i); |
| 259 | |
| 260 return result; | |
| 261 } | |
| 262 | |
| 4316 | 263 ComplexColumnVector |
| 5275 | 264 ComplexColumnVector::extract_n (octave_idx_type r1, octave_idx_type n) const |
| 4316 | 265 { |
| 266 ComplexColumnVector result (n); | |
| 267 | |
| 5275 | 268 for (octave_idx_type i = 0; i < n; i++) |
| 4316 | 269 result.elem (i) = elem (r1+i); |
| 270 | |
| 271 return result; | |
| 272 } | |
| 273 | |
| 458 | 274 // column vector by column vector -> column vector operations |
| 275 | |
| 276 ComplexColumnVector& | |
| 277 ComplexColumnVector::operator += (const ColumnVector& a) | |
| 278 { | |
| 5275 | 279 octave_idx_type len = length (); |
| 2386 | 280 |
| 5275 | 281 octave_idx_type a_len = a.length (); |
| 2386 | 282 |
| 283 if (len != a_len) | |
| 458 | 284 { |
| 2386 | 285 gripe_nonconformant ("operator +=", len, a_len); |
| 458 | 286 return *this; |
| 287 } | |
| 288 | |
| 289 if (len == 0) | |
| 290 return *this; | |
| 291 | |
| 292 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 293 | |
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294 mx_inline_add2 (len, d, a.data ()); |
| 458 | 295 return *this; |
| 296 } | |
| 297 | |
| 298 ComplexColumnVector& | |
| 299 ComplexColumnVector::operator -= (const ColumnVector& a) | |
| 300 { | |
| 5275 | 301 octave_idx_type len = length (); |
| 2386 | 302 |
| 5275 | 303 octave_idx_type a_len = a.length (); |
| 2386 | 304 |
| 305 if (len != a_len) | |
| 458 | 306 { |
| 2386 | 307 gripe_nonconformant ("operator -=", len, a_len); |
| 458 | 308 return *this; |
| 309 } | |
| 310 | |
| 311 if (len == 0) | |
| 312 return *this; | |
| 313 | |
| 314 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 315 | |
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316 mx_inline_sub2 (len, d, a.data ()); |
| 458 | 317 return *this; |
| 318 } | |
| 319 | |
| 1205 | 320 // matrix by column vector -> column vector operations |
| 321 | |
| 322 ComplexColumnVector | |
| 323 operator * (const ComplexMatrix& m, const ColumnVector& a) | |
| 324 { | |
| 325 ComplexColumnVector tmp (a); | |
| 326 return m * tmp; | |
| 327 } | |
| 328 | |
| 329 ComplexColumnVector | |
| 330 operator * (const ComplexMatrix& m, const ComplexColumnVector& a) | |
| 331 { | |
| 1947 | 332 ComplexColumnVector retval; |
| 333 | |
| 5275 | 334 octave_idx_type nr = m.rows (); |
| 335 octave_idx_type nc = m.cols (); | |
| 1947 | 336 |
| 5275 | 337 octave_idx_type a_len = a.length (); |
| 2386 | 338 |
| 339 if (nc != a_len) | |
| 340 gripe_nonconformant ("operator *", nr, nc, a_len, 1); | |
| 1947 | 341 else |
| 458 | 342 { |
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343 retval.clear (nr); |
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344 |
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345 if (nr != 0) |
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346 { |
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347 Complex *y = retval.fortran_vec (); |
| 1947 | 348 |
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349 F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("N", 1), |
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350 nr, nc, 1.0, m.data (), nr, |
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351 a.data (), 1, 0.0, y, 1 |
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352 F77_CHAR_ARG_LEN (1))); |
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353 } |
| 458 | 354 } |
| 355 | |
| 1947 | 356 return retval; |
| 458 | 357 } |
| 358 | |
| 1205 | 359 // matrix by column vector -> column vector operations |
| 360 | |
| 361 ComplexColumnVector | |
| 362 operator * (const Matrix& m, const ComplexColumnVector& a) | |
| 363 { | |
| 364 ComplexMatrix tmp (m); | |
| 365 return tmp * a; | |
| 366 } | |
| 367 | |
| 368 // diagonal matrix by column vector -> column vector operations | |
| 369 | |
| 370 ComplexColumnVector | |
| 371 operator * (const DiagMatrix& m, const ComplexColumnVector& a) | |
| 372 { | |
| 5275 | 373 octave_idx_type nr = m.rows (); |
| 374 octave_idx_type nc = m.cols (); | |
| 2386 | 375 |
| 5275 | 376 octave_idx_type a_len = a.length (); |
| 2386 | 377 |
| 1205 | 378 if (nc != a_len) |
| 379 { | |
| 2386 | 380 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 3585 | 381 return ComplexColumnVector (); |
| 1205 | 382 } |
| 383 | |
| 384 if (nc == 0 || nr == 0) | |
| 385 return ComplexColumnVector (0); | |
| 386 | |
| 387 ComplexColumnVector result (nr); | |
| 388 | |
| 5275 | 389 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 390 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 391 | |
| 5275 | 392 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 393 result.elem (i) = 0.0; |
| 394 | |
| 395 return result; | |
| 396 } | |
| 397 | |
| 398 ComplexColumnVector | |
| 399 operator * (const ComplexDiagMatrix& m, const ColumnVector& a) | |
| 400 { | |
| 5275 | 401 octave_idx_type nr = m.rows (); |
| 402 octave_idx_type nc = m.cols (); | |
| 2386 | 403 |
| 5275 | 404 octave_idx_type a_len = a.length (); |
| 2386 | 405 |
| 1205 | 406 if (nc != a_len) |
| 407 { | |
| 2386 | 408 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 1205 | 409 return ComplexColumnVector (); |
| 410 } | |
| 411 | |
| 412 if (nc == 0 || nr == 0) | |
| 413 return ComplexColumnVector (0); | |
| 414 | |
| 415 ComplexColumnVector result (nr); | |
| 416 | |
| 5275 | 417 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 418 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 419 | |
| 5275 | 420 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 421 result.elem (i) = 0.0; |
| 422 | |
| 423 return result; | |
| 424 } | |
| 425 | |
| 426 ComplexColumnVector | |
| 427 operator * (const ComplexDiagMatrix& m, const ComplexColumnVector& a) | |
| 428 { | |
| 5275 | 429 octave_idx_type nr = m.rows (); |
| 430 octave_idx_type nc = m.cols (); | |
| 2386 | 431 |
| 5275 | 432 octave_idx_type a_len = a.length (); |
| 2386 | 433 |
| 1205 | 434 if (nc != a_len) |
| 435 { | |
| 2386 | 436 gripe_nonconformant ("operator *", nr, nc, a_len, 1); |
| 1205 | 437 return ComplexColumnVector (); |
| 438 } | |
| 439 | |
| 440 if (nc == 0 || nr == 0) | |
| 441 return ComplexColumnVector (0); | |
| 442 | |
| 443 ComplexColumnVector result (nr); | |
| 444 | |
| 5275 | 445 for (octave_idx_type i = 0; i < a_len; i++) |
| 1205 | 446 result.elem (i) = a.elem (i) * m.elem (i, i); |
| 447 | |
| 5275 | 448 for (octave_idx_type i = a_len; i < nr; i++) |
| 1205 | 449 result.elem (i) = 0.0; |
| 450 | |
| 451 return result; | |
| 452 } | |
| 453 | |
| 458 | 454 // other operations |
| 455 | |
| 456 Complex | |
| 457 ComplexColumnVector::min (void) const | |
| 458 { | |
| 5275 | 459 octave_idx_type len = length (); |
| 458 | 460 if (len == 0) |
| 461 return 0.0; | |
| 462 | |
| 463 Complex res = elem (0); | |
| 5260 | 464 double absres = std::abs (res); |
| 458 | 465 |
| 5275 | 466 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 467 if (std::abs (elem (i)) < absres) |
| 458 | 468 { |
|
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469 res = elem (i); |
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470 absres = std::abs (res); |
| 458 | 471 } |
| 472 | |
| 473 return res; | |
| 474 } | |
| 475 | |
| 476 Complex | |
| 477 ComplexColumnVector::max (void) const | |
| 478 { | |
| 5275 | 479 octave_idx_type len = length (); |
| 458 | 480 if (len == 0) |
| 481 return 0.0; | |
| 482 | |
| 483 Complex res = elem (0); | |
| 5260 | 484 double absres = std::abs (res); |
| 458 | 485 |
| 5275 | 486 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 487 if (std::abs (elem (i)) > absres) |
| 458 | 488 { |
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489 res = elem (i); |
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490 absres = std::abs (res); |
| 458 | 491 } |
| 492 | |
| 493 return res; | |
| 494 } | |
| 495 | |
| 496 // i/o | |
| 497 | |
| 3504 | 498 std::ostream& |
| 499 operator << (std::ostream& os, const ComplexColumnVector& a) | |
| 458 | 500 { |
| 501 // int field_width = os.precision () + 7; | |
| 5275 | 502 for (octave_idx_type i = 0; i < a.length (); i++) |
| 458 | 503 os << /* setw (field_width) << */ a.elem (i) << "\n"; |
| 504 return os; | |
| 505 } | |
| 506 | |
| 3504 | 507 std::istream& |
| 508 operator >> (std::istream& is, ComplexColumnVector& a) | |
| 458 | 509 { |
| 5275 | 510 octave_idx_type len = a.length(); |
| 458 | 511 |
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512 if (len > 0) |
| 458 | 513 { |
| 514 double tmp; | |
| 5275 | 515 for (octave_idx_type i = 0; i < len; i++) |
| 458 | 516 { |
| 517 is >> tmp; | |
| 518 if (is) | |
| 519 a.elem (i) = tmp; | |
| 520 else | |
| 521 break; | |
| 522 } | |
| 523 } | |
| 532 | 524 return is; |
| 458 | 525 } |