Mercurial > hg > octave-lyh
annotate liboctave/CRowVector.cc @ 7503:8c32f95c2639
convert mapper functions to new format
| author | David Bateman <dbateman@free.fr> |
|---|---|
| date | Wed, 20 Feb 2008 04:22:50 -0500 |
| parents | 29980c6b8604 |
| children | 82be108cc558 |
| rev | line source |
|---|---|
| 1993 | 1 // RowVector manipulations. |
| 458 | 2 /* |
| 3 | |
| 7017 | 4 Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, |
| 5 2004, 2005, 2006, 2007 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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convert mapper functions to new format
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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, | |
| 5275 | 45 const octave_idx_type&, const octave_idx_type&, const Complex&, |
| 46 const Complex*, const octave_idx_type&, const Complex*, | |
| 47 const octave_idx_type&, const Complex&, Complex*, const octave_idx_type& | |
| 4552 | 48 F77_CHAR_ARG_LEN_DECL); |
| 5983 | 49 |
| 50 F77_RET_T | |
| 51 F77_FUNC (xzdotu, XZDOTU) (const octave_idx_type&, const Complex*, const octave_idx_type&, | |
| 52 const Complex*, const octave_idx_type&, Complex&); | |
| 458 | 53 } |
| 54 | |
| 1360 | 55 // Complex Row Vector class |
| 458 | 56 |
| 57 ComplexRowVector::ComplexRowVector (const RowVector& a) | |
| 1214 | 58 : MArray<Complex> (a.length ()) |
| 458 | 59 { |
| 5275 | 60 for (octave_idx_type i = 0; i < length (); i++) |
| 458 | 61 elem (i) = a.elem (i); |
| 62 } | |
| 63 | |
| 2386 | 64 bool |
| 458 | 65 ComplexRowVector::operator == (const ComplexRowVector& a) const |
| 66 { | |
| 5275 | 67 octave_idx_type len = length (); |
| 458 | 68 if (len != a.length ()) |
| 69 return 0; | |
| 3769 | 70 return mx_inline_equal (data (), a.data (), len); |
| 458 | 71 } |
| 72 | |
| 2386 | 73 bool |
| 458 | 74 ComplexRowVector::operator != (const ComplexRowVector& a) const |
| 75 { | |
| 76 return !(*this == a); | |
| 77 } | |
| 78 | |
| 79 // destructive insert/delete/reorder operations | |
| 80 | |
| 81 ComplexRowVector& | |
| 5275 | 82 ComplexRowVector::insert (const RowVector& a, octave_idx_type c) |
| 458 | 83 { |
| 5275 | 84 octave_idx_type a_len = a.length (); |
| 4316 | 85 |
| 1699 | 86 if (c < 0 || c + a_len > length ()) |
| 458 | 87 { |
| 88 (*current_liboctave_error_handler) ("range error for insert"); | |
| 89 return *this; | |
| 90 } | |
| 91 | |
| 4316 | 92 if (a_len > 0) |
| 93 { | |
| 94 make_unique (); | |
| 95 | |
| 5275 | 96 for (octave_idx_type i = 0; i < a_len; i++) |
| 4316 | 97 xelem (c+i) = a.elem (i); |
| 98 } | |
| 458 | 99 |
| 100 return *this; | |
| 101 } | |
| 102 | |
| 103 ComplexRowVector& | |
| 5275 | 104 ComplexRowVector::insert (const ComplexRowVector& a, octave_idx_type c) |
| 458 | 105 { |
| 5275 | 106 octave_idx_type a_len = a.length (); |
| 4316 | 107 |
| 1699 | 108 if (c < 0 || c + a_len > length ()) |
| 458 | 109 { |
| 110 (*current_liboctave_error_handler) ("range error for insert"); | |
| 111 return *this; | |
| 112 } | |
| 113 | |
| 4316 | 114 if (a_len > 0) |
| 115 { | |
| 116 make_unique (); | |
| 117 | |
| 5275 | 118 for (octave_idx_type i = 0; i < a_len; i++) |
| 4316 | 119 xelem (c+i) = a.elem (i); |
| 120 } | |
| 458 | 121 |
| 122 return *this; | |
| 123 } | |
| 124 | |
| 125 ComplexRowVector& | |
| 126 ComplexRowVector::fill (double val) | |
| 127 { | |
| 5275 | 128 octave_idx_type len = length (); |
| 4316 | 129 |
| 458 | 130 if (len > 0) |
| 4316 | 131 { |
| 132 make_unique (); | |
| 133 | |
| 5275 | 134 for (octave_idx_type i = 0; i < len; i++) |
| 4316 | 135 xelem (i) = val; |
| 136 } | |
| 137 | |
| 458 | 138 return *this; |
| 139 } | |
| 140 | |
| 141 ComplexRowVector& | |
| 142 ComplexRowVector::fill (const Complex& val) | |
| 143 { | |
| 5275 | 144 octave_idx_type len = length (); |
| 4316 | 145 |
| 458 | 146 if (len > 0) |
| 4316 | 147 { |
| 148 make_unique (); | |
| 149 | |
| 5275 | 150 for (octave_idx_type i = 0; i < len; i++) |
| 4316 | 151 xelem (i) = val; |
| 152 } | |
| 153 | |
| 458 | 154 return *this; |
| 155 } | |
| 156 | |
| 157 ComplexRowVector& | |
| 5275 | 158 ComplexRowVector::fill (double val, octave_idx_type c1, octave_idx_type c2) |
| 458 | 159 { |
| 5275 | 160 octave_idx_type len = length (); |
| 4316 | 161 |
| 458 | 162 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) |
| 163 { | |
| 164 (*current_liboctave_error_handler) ("range error for fill"); | |
| 165 return *this; | |
| 166 } | |
| 167 | |
| 5275 | 168 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; } |
| 458 | 169 |
| 4316 | 170 if (c2 >= c1) |
| 171 { | |
| 172 make_unique (); | |
| 173 | |
| 5275 | 174 for (octave_idx_type i = c1; i <= c2; i++) |
| 4316 | 175 xelem (i) = val; |
| 176 } | |
| 458 | 177 |
| 178 return *this; | |
| 179 } | |
| 180 | |
| 181 ComplexRowVector& | |
| 5275 | 182 ComplexRowVector::fill (const Complex& val, octave_idx_type c1, octave_idx_type c2) |
| 458 | 183 { |
| 5275 | 184 octave_idx_type len = length (); |
| 4316 | 185 |
| 458 | 186 if (c1 < 0 || c2 < 0 || c1 >= len || c2 >= len) |
| 187 { | |
| 188 (*current_liboctave_error_handler) ("range error for fill"); | |
| 189 return *this; | |
| 190 } | |
| 191 | |
| 5275 | 192 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; } |
| 458 | 193 |
| 4316 | 194 if (c2 >= c1) |
| 195 { | |
| 196 make_unique (); | |
| 197 | |
| 5275 | 198 for (octave_idx_type i = c1; i <= c2; i++) |
| 4316 | 199 xelem (i) = val; |
| 200 } | |
| 458 | 201 |
| 202 return *this; | |
| 203 } | |
| 204 | |
| 205 ComplexRowVector | |
| 206 ComplexRowVector::append (const RowVector& a) const | |
| 207 { | |
| 5275 | 208 octave_idx_type len = length (); |
| 209 octave_idx_type nc_insert = len; | |
| 458 | 210 ComplexRowVector retval (len + a.length ()); |
| 211 retval.insert (*this, 0); | |
| 212 retval.insert (a, nc_insert); | |
| 213 return retval; | |
| 214 } | |
| 215 | |
| 216 ComplexRowVector | |
| 217 ComplexRowVector::append (const ComplexRowVector& a) const | |
| 218 { | |
| 5275 | 219 octave_idx_type len = length (); |
| 220 octave_idx_type nc_insert = len; | |
| 458 | 221 ComplexRowVector retval (len + a.length ()); |
| 222 retval.insert (*this, 0); | |
| 223 retval.insert (a, nc_insert); | |
| 224 return retval; | |
| 225 } | |
| 226 | |
| 227 ComplexColumnVector | |
| 228 ComplexRowVector::hermitian (void) const | |
| 229 { | |
| 5275 | 230 octave_idx_type len = length (); |
| 3769 | 231 return ComplexColumnVector (mx_inline_conj_dup (data (), len), len); |
| 458 | 232 } |
| 233 | |
| 234 ComplexColumnVector | |
| 235 ComplexRowVector::transpose (void) const | |
| 236 { | |
| 1858 | 237 return ComplexColumnVector (*this); |
| 458 | 238 } |
| 239 | |
| 240 ComplexRowVector | |
| 241 conj (const ComplexRowVector& a) | |
| 242 { | |
| 5275 | 243 octave_idx_type a_len = a.length (); |
| 458 | 244 ComplexRowVector retval; |
| 245 if (a_len > 0) | |
| 3769 | 246 retval = ComplexRowVector (mx_inline_conj_dup (a.data (), a_len), a_len); |
| 458 | 247 return retval; |
| 248 } | |
| 249 | |
| 250 // resize is the destructive equivalent for this one | |
| 251 | |
| 252 ComplexRowVector | |
| 5275 | 253 ComplexRowVector::extract (octave_idx_type c1, octave_idx_type c2) const |
| 458 | 254 { |
| 5275 | 255 if (c1 > c2) { octave_idx_type tmp = c1; c1 = c2; c2 = tmp; } |
| 458 | 256 |
| 5275 | 257 octave_idx_type new_c = c2 - c1 + 1; |
| 458 | 258 |
| 259 ComplexRowVector result (new_c); | |
| 260 | |
| 5275 | 261 for (octave_idx_type i = 0; i < new_c; i++) |
| 458 | 262 result.elem (i) = elem (c1+i); |
| 263 | |
| 264 return result; | |
| 265 } | |
| 266 | |
| 4316 | 267 ComplexRowVector |
| 5275 | 268 ComplexRowVector::extract_n (octave_idx_type r1, octave_idx_type n) const |
| 4316 | 269 { |
| 270 ComplexRowVector result (n); | |
| 271 | |
| 5275 | 272 for (octave_idx_type i = 0; i < n; i++) |
| 4316 | 273 result.elem (i) = elem (r1+i); |
| 274 | |
| 275 return result; | |
| 276 } | |
| 277 | |
| 458 | 278 // row vector by row vector -> row vector operations |
| 279 | |
| 280 ComplexRowVector& | |
| 281 ComplexRowVector::operator += (const RowVector& a) | |
| 282 { | |
| 5275 | 283 octave_idx_type len = length (); |
| 2386 | 284 |
| 5275 | 285 octave_idx_type a_len = a.length (); |
| 2386 | 286 |
| 287 if (len != a_len) | |
| 458 | 288 { |
| 2386 | 289 gripe_nonconformant ("operator +=", len, a_len); |
| 458 | 290 return *this; |
| 291 } | |
| 292 | |
| 293 if (len == 0) | |
| 294 return *this; | |
| 295 | |
| 296 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 297 | |
| 3769 | 298 mx_inline_add2 (d, a.data (), len); |
| 458 | 299 return *this; |
| 300 } | |
| 301 | |
| 302 ComplexRowVector& | |
| 303 ComplexRowVector::operator -= (const RowVector& a) | |
| 304 { | |
| 5275 | 305 octave_idx_type len = length (); |
| 2386 | 306 |
| 5275 | 307 octave_idx_type a_len = a.length (); |
| 2386 | 308 |
| 309 if (len != a_len) | |
| 458 | 310 { |
| 2386 | 311 gripe_nonconformant ("operator -=", len, a_len); |
| 458 | 312 return *this; |
| 313 } | |
| 314 | |
| 315 if (len == 0) | |
| 316 return *this; | |
| 317 | |
| 318 Complex *d = fortran_vec (); // Ensures only one reference to my privates! | |
| 319 | |
| 3769 | 320 mx_inline_subtract2 (d, a.data (), len); |
| 458 | 321 return *this; |
| 322 } | |
| 323 | |
| 324 // row vector by matrix -> row vector | |
| 325 | |
| 326 ComplexRowVector | |
| 327 operator * (const ComplexRowVector& v, const ComplexMatrix& a) | |
| 328 { | |
| 1947 | 329 ComplexRowVector retval; |
| 330 | |
| 5275 | 331 octave_idx_type len = v.length (); |
| 1947 | 332 |
| 5275 | 333 octave_idx_type a_nr = a.rows (); |
| 334 octave_idx_type a_nc = a.cols (); | |
| 2386 | 335 |
| 336 if (a_nr != len) | |
| 337 gripe_nonconformant ("operator *", 1, len, a_nr, a_nc); | |
| 1947 | 338 else |
| 458 | 339 { |
| 1947 | 340 if (len == 0) |
| 341 retval.resize (a_nc, 0.0); | |
| 342 else | |
| 343 { | |
| 344 // Transpose A to form A'*x == (x'*A)' | |
| 345 | |
| 5275 | 346 octave_idx_type ld = a_nr; |
| 1947 | 347 |
| 348 retval.resize (a_nc); | |
| 349 Complex *y = retval.fortran_vec (); | |
| 350 | |
| 4552 | 351 F77_XFCN (zgemv, ZGEMV, (F77_CONST_CHAR_ARG2 ("T", 1), |
| 352 a_nr, a_nc, 1.0, a.data (), | |
| 353 ld, v.data (), 1, 0.0, y, 1 | |
| 354 F77_CHAR_ARG_LEN (1))); | |
| 1947 | 355 } |
| 458 | 356 } |
| 357 | |
| 1947 | 358 return retval; |
| 458 | 359 } |
| 360 | |
| 1205 | 361 ComplexRowVector |
| 362 operator * (const RowVector& v, const ComplexMatrix& a) | |
| 363 { | |
| 364 ComplexRowVector tmp (v); | |
| 365 return tmp * a; | |
| 366 } | |
| 367 | |
| 458 | 368 // other operations |
| 369 | |
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8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
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370 RowVector |
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8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
changeset
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371 ComplexRowVector::map (dmapper fcn) const |
| 458 | 372 { |
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8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
changeset
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373 return MArray<Complex>::map<double> (func_ptr (fcn)); |
| 458 | 374 } |
| 375 | |
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7503
8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
changeset
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376 ComplexRowVector |
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8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
changeset
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377 ComplexRowVector::map (cmapper fcn) const |
| 458 | 378 { |
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8c32f95c2639
convert mapper functions to new format
David Bateman <dbateman@free.fr>
parents:
7482
diff
changeset
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379 return MArray<Complex>::map<Complex> (func_ptr (fcn)); |
| 458 | 380 } |
| 381 | |
| 382 Complex | |
| 383 ComplexRowVector::min (void) const | |
| 384 { | |
| 5275 | 385 octave_idx_type len = length (); |
| 458 | 386 if (len == 0) |
| 387 return Complex (0.0); | |
| 388 | |
| 389 Complex res = elem (0); | |
| 5260 | 390 double absres = std::abs (res); |
| 458 | 391 |
| 5275 | 392 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 393 if (std::abs (elem (i)) < absres) |
| 458 | 394 { |
| 395 res = elem (i); | |
| 5260 | 396 absres = std::abs (res); |
| 458 | 397 } |
| 398 | |
| 399 return res; | |
| 400 } | |
| 401 | |
| 402 Complex | |
| 403 ComplexRowVector::max (void) const | |
| 404 { | |
| 5275 | 405 octave_idx_type len = length (); |
| 458 | 406 if (len == 0) |
| 407 return Complex (0.0); | |
| 408 | |
| 409 Complex res = elem (0); | |
| 5260 | 410 double absres = std::abs (res); |
| 458 | 411 |
| 5275 | 412 for (octave_idx_type i = 1; i < len; i++) |
| 5260 | 413 if (std::abs (elem (i)) > absres) |
| 458 | 414 { |
| 415 res = elem (i); | |
| 5260 | 416 absres = std::abs (res); |
| 458 | 417 } |
| 418 | |
| 419 return res; | |
| 420 } | |
| 421 | |
| 422 // i/o | |
| 423 | |
| 3504 | 424 std::ostream& |
| 425 operator << (std::ostream& os, const ComplexRowVector& a) | |
| 458 | 426 { |
| 427 // int field_width = os.precision () + 7; | |
| 5275 | 428 for (octave_idx_type i = 0; i < a.length (); i++) |
| 458 | 429 os << " " /* setw (field_width) */ << a.elem (i); |
| 430 return os; | |
| 431 } | |
| 432 | |
| 3504 | 433 std::istream& |
| 434 operator >> (std::istream& is, ComplexRowVector& a) | |
| 458 | 435 { |
| 5275 | 436 octave_idx_type len = a.length(); |
| 458 | 437 |
| 438 if (len < 1) | |
| 3504 | 439 is.clear (std::ios::badbit); |
| 458 | 440 else |
| 441 { | |
| 442 Complex tmp; | |
| 5275 | 443 for (octave_idx_type i = 0; i < len; i++) |
| 458 | 444 { |
| 445 is >> tmp; | |
| 446 if (is) | |
| 447 a.elem (i) = tmp; | |
| 448 else | |
| 449 break; | |
| 450 } | |
| 451 } | |
| 532 | 452 return is; |
| 458 | 453 } |
| 454 | |
| 1205 | 455 // row vector by column vector -> scalar |
| 456 | |
| 457 // row vector by column vector -> scalar | |
| 458 | |
| 459 Complex | |
| 460 operator * (const ComplexRowVector& v, const ColumnVector& a) | |
| 461 { | |
| 462 ComplexColumnVector tmp (a); | |
| 463 return v * tmp; | |
| 464 } | |
| 465 | |
| 466 Complex | |
| 467 operator * (const ComplexRowVector& v, const ComplexColumnVector& a) | |
| 468 { | |
| 5983 | 469 Complex retval (0.0, 0.0); |
| 470 | |
| 5275 | 471 octave_idx_type len = v.length (); |
| 2386 | 472 |
| 5275 | 473 octave_idx_type a_len = a.length (); |
| 2386 | 474 |
| 475 if (len != a_len) | |
| 5983 | 476 gripe_nonconformant ("operator *", len, a_len); |
| 477 else if (len != 0) | |
| 478 F77_FUNC (xzdotu, XZDOTU) (len, v.data (), 1, a.data (), 1, retval); | |
| 1205 | 479 |
| 480 return retval; | |
| 481 } | |
| 482 | |
| 483 // other operations | |
| 484 | |
| 485 ComplexRowVector | |
| 5275 | 486 linspace (const Complex& x1, const Complex& x2, octave_idx_type n) |
| 1205 | 487 { |
| 488 ComplexRowVector retval; | |
| 489 | |
| 490 if (n > 0) | |
| 491 { | |
| 492 retval.resize (n); | |
| 3092 | 493 Complex delta = (x2 - x1) / (n - 1.0); |
| 1205 | 494 retval.elem (0) = x1; |
| 5275 | 495 for (octave_idx_type i = 1; i < n-1; i++) |
| 3092 | 496 retval.elem (i) = x1 + 1.0 * i * delta; |
| 1205 | 497 retval.elem (n-1) = x2; |
| 498 } | |
| 6630 | 499 else |
| 3322 | 500 { |
| 6629 | 501 retval.resize (1); |
| 502 retval.elem (0) = x2; | |
| 3322 | 503 } |
| 1205 | 504 |
| 505 return retval; | |
| 506 } | |
| 507 | |
| 458 | 508 /* |
| 509 ;;; Local Variables: *** | |
| 510 ;;; mode: C++ *** | |
| 511 ;;; End: *** | |
| 512 */ |