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TMatrixTBase.cxx
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1// @(#)root/matrix:$Id: 2d00df45ce4c38c7ea0930d6b520cbf4cfb9152e $
2// Authors: Fons Rademakers, Eddy Offermann Nov 2003
3
4/*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12/** \class TMatrixTBase
13 \ingroup Matrix
14
15TMatrixTBase
16
17Template of base class in the linear algebra package.
18
19See the \ref Matrix page for the documentation of the linear algebra package
20
21Matrix properties are stored here, however the data storage is part
22of the derived classes
23*/
24
25#include "TMatrixTBase.h"
26#include "TVectorT.h"
27#include "TBuffer.h"
28#include "TROOT.h"
29#include "TMath.h"
30#include "snprintf.h"
31#include <climits>
32
33Int_t gMatrixCheck = 1;
34
35templateClassImp(TMatrixTBase);
36
37
38////////////////////////////////////////////////////////////////////////////////
39/// Lexical sort on array data using indices first and second
40
41template<class Element>
42void TMatrixTBase<Element>::DoubleLexSort(Int_t n,Int_t *first,Int_t *second,Element *data)
43{
44 const int incs[] = {1,5,19,41,109,209,505,929,2161,3905,8929,16001,INT_MAX};
45
46 Int_t kinc = 0;
47 while (incs[kinc] <= n/2)
48 kinc++;
49 kinc -= 1;
50
51 // incs[kinc] is the greatest value in the sequence that is also <= n/2.
52 // If n == {0,1}, kinc == -1 and so no sort will take place.
53
54 for( ; kinc >= 0; kinc--) {
55 const Int_t inc = incs[kinc];
56
57 for (Int_t k = inc; k < n; k++) {
58 const Element tmp = data[k];
59 const Int_t fi = first [k];
60 const Int_t se = second[k];
61 Int_t j;
62 for (j = k; j >= inc; j -= inc) {
63 if ( fi < first[j-inc] || (fi == first[j-inc] && se < second[j-inc]) ) {
64 data [j] = data [j-inc];
65 first [j] = first [j-inc];
66 second[j] = second[j-inc];
67 } else
68 break;
69 }
70 data [j] = tmp;
71 first [j] = fi;
72 second[j] = se;
73 }
74 }
75}
76
77////////////////////////////////////////////////////////////////////////////////
78/// Lexical sort on array data using indices first and second
79
80template<class Element>
81void TMatrixTBase<Element>::IndexedLexSort(Int_t n,Int_t *first,Int_t swapFirst,
82 Int_t *second,Int_t swapSecond,Int_t *index)
83{
84 const int incs[] = {1,5,19,41,109,209,505,929,2161,3905,8929,16001,INT_MAX};
85
86 Int_t kinc = 0;
87 while (incs[kinc] <= n/2)
88 kinc++;
89 kinc -= 1;
90
91 // incs[kinc] is the greatest value in the sequence that is also less
92 // than n/2.
93
94 for( ; kinc >= 0; kinc--) {
95 const Int_t inc = incs[kinc];
96
97 if ( !swapFirst && !swapSecond ) {
98 for (Int_t k = inc; k < n; k++) {
99 // loop over all subarrays defined by the current increment
100 const Int_t ktemp = index[k];
101 const Int_t fi = first [ktemp];
102 const Int_t se = second[ktemp];
103 // Insert element k into the sorted subarray
104 Int_t j;
105 for (j = k; j >= inc; j -= inc) {
106 // Loop over the elements in the current subarray
107 if (fi < first[index[j-inc]] || (fi == first[index[j-inc]] && se < second[index[j-inc]])) {
108 // Swap elements j and j - inc, implicitly use the fact
109 // that ktemp hold element j to avoid having to assign to
110 // element j-inc
111 index[j] = index[j-inc];
112 } else {
113 // There are no more elements in this sorted subarray which
114 // are less than element j
115 break;
116 }
117 } // End loop over the elements in the current subarray
118 // Move index[j] out of temporary storage
119 index[j] = ktemp;
120 // The element has been inserted into the subarray.
121 } // End loop over all subarrays defined by the current increment
122 } else if ( swapSecond && !swapFirst ) {
123 for (Int_t k = inc; k < n; k++) {
124 const Int_t ktemp = index[k];
125 const Int_t fi = first [ktemp];
126 const Int_t se = second[k];
127 Int_t j;
128 for (j = k; j >= inc; j -= inc) {
129 if (fi < first[index[j-inc]] || (fi == first[index[j-inc]] && se < second[j-inc])) {
130 index [j] = index[j-inc];
131 second[j] = second[j-inc];
132 } else {
133 break;
134 }
135 }
136 index[j] = ktemp;
137 second[j] = se;
138 }
139 } else if (swapFirst && !swapSecond) {
140 for (Int_t k = inc; k < n; k++ ) {
141 const Int_t ktemp = index[k];
142 const Int_t fi = first[k];
143 const Int_t se = second[ktemp];
144 Int_t j;
145 for (j = k; j >= inc; j -= inc) {
146 if ( fi < first[j-inc] || (fi == first[j-inc] && se < second[ index[j-inc]])) {
147 index[j] = index[j-inc];
148 first[j] = first[j-inc];
149 } else {
150 break;
151 }
152 }
153 index[j] = ktemp;
154 first[j] = fi;
155 }
156 } else { // Swap both
157 for (Int_t k = inc; k < n; k++ ) {
158 const Int_t ktemp = index[k];
159 const Int_t fi = first [k];
160 const Int_t se = second[k];
161 Int_t j;
162 for (j = k; j >= inc; j -= inc) {
163 if ( fi < first[j-inc] || (fi == first[j-inc] && se < second[j-inc])) {
164 index [j] = index [j-inc];
165 first [j] = first [j-inc];
166 second[j] = second[j-inc];
167 } else {
168 break;
169 }
170 }
171 index[j] = ktemp;
172 first[j] = fi;
173 second[j] = se;
174 }
175 }
176 }
177}
178
179////////////////////////////////////////////////////////////////////////////////
180/// Copy array data to matrix . It is assumed that array is of size >= fNelems
181/// (=)))) fNrows*fNcols
182/// option indicates how the data is stored in the array:
183/// option =
184/// - 'F' : column major (Fortran) m[i][j] = array[i+j*fNrows]
185/// - else : row major (C) m[i][j] = array[i*fNcols+j] (default)
186
187template<class Element>
188TMatrixTBase<Element> &TMatrixTBase<Element>::SetMatrixArray(const Element *data,Option_t *option)
189{
190 R__ASSERT(IsValid());
191
192 TString opt = option;
193 opt.ToUpper();
194
195 Element *elem = GetMatrixArray();
196 if (opt.Contains("F")) {
197 for (Int_t irow = 0; irow < fNrows; irow++) {
198 const Int_t off1 = irow*fNcols;
199 Int_t off2 = 0;
200 for (Int_t icol = 0; icol < fNcols; icol++) {
201 elem[off1+icol] = data[off2+irow];
202 off2 += fNrows;
203 }
204 }
205 }
206 else
207 memcpy(elem,data,fNelems*sizeof(Element));
208
209 return *this;
210}
211
212////////////////////////////////////////////////////////////////////////////////
213/// Check whether matrix is symmetric
214
215template<class Element>
216Bool_t TMatrixTBase<Element>::IsSymmetric() const
217{
218 R__ASSERT(IsValid());
219
220 if ((fNrows != fNcols) || (fRowLwb != fColLwb))
221 return kFALSE;
222
223 const Element * const elem = GetMatrixArray();
224 for (Int_t irow = 0; irow < fNrows; irow++) {
225 const Int_t rowOff = irow*fNcols;
226 Int_t colOff = 0;
227 for (Int_t icol = 0; icol < irow; icol++) {
228 if (elem[rowOff+icol] != elem[colOff+irow])
229 return kFALSE;
230 colOff += fNrows;
231 }
232 }
233 return kTRUE;
234}
235
236////////////////////////////////////////////////////////////////////////////////
237/// Copy matrix data to array . It is assumed that array is of size >= fNelems
238/// (=)))) fNrows*fNcols
239/// option indicates how the data is stored in the array:
240/// option =
241/// - 'F' : column major (Fortran) array[i+j*fNrows] = m[i][j]
242/// - else : row major (C) array[i*fNcols+j] = m[i][j] (default)
243
244template<class Element>
245void TMatrixTBase<Element>::GetMatrix2Array(Element *data,Option_t *option) const
246{
247 R__ASSERT(IsValid());
248
249 TString opt = option;
250 opt.ToUpper();
251
252 const Element * const elem = GetMatrixArray();
253 if (opt.Contains("F")) {
254 for (Int_t irow = 0; irow < fNrows; irow++) {
255 const Int_t off1 = irow*fNcols;
256 Int_t off2 = 0;
257 for (Int_t icol = 0; icol < fNcols; icol++) {
258 data[off2+irow] = elem[off1+icol];
259 off2 += fNrows;
260 }
261 }
262 }
263 else
264 memcpy(data,elem,fNelems*sizeof(Element));
265}
266
267////////////////////////////////////////////////////////////////////////////////
268/// Copy n elements from array v to row rown starting at column coln
269
270template<class Element>
271TMatrixTBase<Element> &TMatrixTBase<Element>::InsertRow(Int_t rown,Int_t coln,const Element *v,Int_t n)
272{
273 const Int_t arown = rown-fRowLwb;
274 const Int_t acoln = coln-fColLwb;
275 const Int_t nr = (n > 0) ? n : fNcols;
276
277 if (gMatrixCheck) {
278 if (arown >= fNrows || arown < 0) {
279 Error("InsertRow","row %d out of matrix range",rown);
280 return *this;
281 }
282
283 if (acoln >= fNcols || acoln < 0) {
284 Error("InsertRow","column %d out of matrix range",coln);
285 return *this;
286 }
287
288 if (acoln+nr > fNcols || nr < 0) {
289 Error("InsertRow","row length %d out of range",nr);
290 return *this;
291 }
292 }
293
294 const Int_t off = arown*fNcols+acoln;
295 Element * const elem = GetMatrixArray()+off;
296 memcpy(elem,v,nr*sizeof(Element));
297
298 return *this;
299}
300
301////////////////////////////////////////////////////////////////////////////////
302/// Store in array v, n matrix elements of row rown starting at column coln
303
304template<class Element>
305void TMatrixTBase<Element>::ExtractRow(Int_t rown,Int_t coln,Element *v,Int_t n) const
306{
307 const Int_t arown = rown-fRowLwb;
308 const Int_t acoln = coln-fColLwb;
309 const Int_t nr = (n > 0) ? n : fNcols;
310
311 if (gMatrixCheck) {
312 if (arown >= fNrows || arown < 0) {
313 Error("ExtractRow","row %d out of matrix range",rown);
314 return;
315 }
316
317 if (acoln >= fNcols || acoln < 0) {
318 Error("ExtractRow","column %d out of matrix range",coln);
319 return;
320 }
321
322 if (acoln+n >= fNcols || nr < 0) {
323 Error("ExtractRow","row length %d out of range",nr);
324 return;
325 }
326 }
327
328 const Int_t off = arown*fNcols+acoln;
329 const Element * const elem = GetMatrixArray()+off;
330 memcpy(v,elem,nr*sizeof(Element));
331}
332
333////////////////////////////////////////////////////////////////////////////////
334/// Shift the row index by adding row_shift and the column index by adding
335/// col_shift, respectively. So [rowLwb..rowUpb][colLwb..colUpb] becomes
336/// [rowLwb+row_shift..rowUpb+row_shift][colLwb+col_shift..colUpb+col_shift]
337
338template<class Element>
339TMatrixTBase<Element> &TMatrixTBase<Element>::Shift(Int_t row_shift,Int_t col_shift)
340{
341 fRowLwb += row_shift;
342 fColLwb += col_shift;
343
344 return *this;
345}
346
347////////////////////////////////////////////////////////////////////////////////
348/// Set matrix elements to zero
349
350template<class Element>
351TMatrixTBase<Element> &TMatrixTBase<Element>::Zero()
352{
353 R__ASSERT(IsValid());
354 memset(this->GetMatrixArray(),0,fNelems*sizeof(Element));
355
356 return *this;
357}
358
359////////////////////////////////////////////////////////////////////////////////
360/// Take an absolute value of a matrix, i.e. apply Abs() to each element.
361
362template<class Element>
363TMatrixTBase<Element> &TMatrixTBase<Element>::Abs()
364{
365 R__ASSERT(IsValid());
366
367 Element *ep = this->GetMatrixArray();
368 const Element * const fp = ep+fNelems;
369 while (ep < fp) {
370 *ep = TMath::Abs(*ep);
371 ep++;
372 }
373
374 return *this;
375}
376
377////////////////////////////////////////////////////////////////////////////////
378/// Square each element of the matrix.
379
380template<class Element>
381TMatrixTBase<Element> &TMatrixTBase<Element>::Sqr()
382{
383 R__ASSERT(IsValid());
384
385 Element *ep = this->GetMatrixArray();
386 const Element * const fp = ep+fNelems;
387 while (ep < fp) {
388 *ep = (*ep) * (*ep);
389 ep++;
390 }
391
392 return *this;
393}
394
395////////////////////////////////////////////////////////////////////////////////
396/// Take square root of all elements.
397
398template<class Element>
399TMatrixTBase<Element> &TMatrixTBase<Element>::Sqrt()
400{
401 R__ASSERT(IsValid());
402
403 Element *ep = this->GetMatrixArray();
404 const Element * const fp = ep+fNelems;
405 while (ep < fp) {
406 *ep = TMath::Sqrt(*ep);
407 ep++;
408 }
409
410 return *this;
411}
412
413////////////////////////////////////////////////////////////////////////////////
414/// Make a unit matrix (matrix need not be a square one).
415
416template<class Element>
417TMatrixTBase<Element> &TMatrixTBase<Element>::UnitMatrix()
418{
419 R__ASSERT(IsValid());
420
421 Element *ep = this->GetMatrixArray();
422 memset(ep,0,fNelems*sizeof(Element));
423 for (Int_t i = fRowLwb; i <= fRowLwb+fNrows-1; i++)
424 for (Int_t j = fColLwb; j <= fColLwb+fNcols-1; j++)
425 *ep++ = (i==j ? 1.0 : 0.0);
426
427 return *this;
428}
429
430////////////////////////////////////////////////////////////////////////////////
431/// option:
432/// - "D" : b(i,j) = a(i,j)/sqrt(abs*(v(i)*v(j))) (default)
433/// - else : b(i,j) = a(i,j)*sqrt(abs*(v(i)*v(j))) (default)
434
435template<class Element>
436TMatrixTBase<Element> &TMatrixTBase<Element>::NormByDiag(const TVectorT<Element> &v,Option_t *option)
437{
438 R__ASSERT(IsValid());
439 R__ASSERT(v.IsValid());
440
441 if (gMatrixCheck) {
442 const Int_t nMax = TMath::Max(fNrows,fNcols);
443 if (v.GetNoElements() < nMax) {
444 Error("NormByDiag","vector shorter than matrix diagonal");
445 return *this;
446 }
447 }
448
449 TString opt(option);
450 opt.ToUpper();
451 const Int_t divide = (opt.Contains("D")) ? 1 : 0;
452
453 const Element *pV = v.GetMatrixArray();
454 Element *mp = this->GetMatrixArray();
455
456 if (divide) {
457 for (Int_t irow = 0; irow < fNrows; irow++) {
458 if (pV[irow] != 0.0) {
459 for (Int_t icol = 0; icol < fNcols; icol++) {
460 if (pV[icol] != 0.0) {
461 const Element val = TMath::Sqrt(TMath::Abs(pV[irow]*pV[icol]));
462 *mp++ /= val;
463 } else {
464 Error("NormbyDiag","vector element %d is zero",icol);
465 mp++;
466 }
467 }
468 } else {
469 Error("NormbyDiag","vector element %d is zero",irow);
470 mp += fNcols;
471 }
472 }
473 } else {
474 for (Int_t irow = 0; irow < fNrows; irow++) {
475 for (Int_t icol = 0; icol < fNcols; icol++) {
476 const Element val = TMath::Sqrt(TMath::Abs(pV[irow]*pV[icol]));
477 *mp++ *= val;
478 }
479 }
480 }
481
482 return *this;
483}
484
485////////////////////////////////////////////////////////////////////////////////
486/// Row matrix norm, MAX{ SUM{ |M(i,j)|, over j}, over i}.
487/// The norm is induced by the infinity vector norm.
488
489template<class Element>
490Element TMatrixTBase<Element>::RowNorm() const
491{
492 R__ASSERT(IsValid());
493
494 const Element * ep = GetMatrixArray();
495 const Element * const fp = ep+fNelems;
496 Element norm = 0;
497
498 // Scan the matrix row-after-row
499 while (ep < fp) {
500 Element sum = 0;
501 // Scan a row to compute the sum
502 for (Int_t j = 0; j < fNcols; j++)
503 sum += TMath::Abs(*ep++);
504 norm = TMath::Max(norm,sum);
505 }
506
507 R__ASSERT(ep == fp);
508
509 return norm;
510}
511
512////////////////////////////////////////////////////////////////////////////////
513/// Column matrix norm, MAX{ SUM{ |M(i,j)|, over i}, over j}.
514/// The norm is induced by the 1 vector norm.
515
516template<class Element>
517Element TMatrixTBase<Element>::ColNorm() const
518{
519 R__ASSERT(IsValid());
520
521 const Element * ep = GetMatrixArray();
522 const Element * const fp = ep+fNcols;
523 Element norm = 0;
524
525 // Scan the matrix col-after-col
526 while (ep < fp) {
527 Element sum = 0;
528 // Scan a col to compute the sum
529 for (Int_t i = 0; i < fNrows; i++,ep += fNcols)
530 sum += TMath::Abs(*ep);
531 ep -= fNelems-1; // Point ep to the beginning of the next col
532 norm = TMath::Max(norm,sum);
533 }
534
535 R__ASSERT(ep == fp);
536
537 return norm;
538}
539
540////////////////////////////////////////////////////////////////////////////////
541/// Square of the Euclidean norm, SUM{ m(i,j)^2 }.
542
543template<class Element>
544Element TMatrixTBase<Element>::E2Norm() const
545{
546 R__ASSERT(IsValid());
547
548 const Element * ep = GetMatrixArray();
549 const Element * const fp = ep+fNelems;
550 Element sum = 0;
551
552 for ( ; ep < fp; ep++)
553 sum += (*ep) * (*ep);
554
555 return sum;
556}
557
558////////////////////////////////////////////////////////////////////////////////
559/// Compute the number of elements != 0.0
560
561template<class Element>
562Int_t TMatrixTBase<Element>::NonZeros() const
563{
564 R__ASSERT(IsValid());
565
566 Int_t nr_nonzeros = 0;
567 const Element *ep = this->GetMatrixArray();
568 const Element * const fp = ep+fNelems;
569 while (ep < fp)
570 if (*ep++ != 0.0) nr_nonzeros++;
571
572 return nr_nonzeros;
573}
574
575////////////////////////////////////////////////////////////////////////////////
576/// Compute sum of elements
577
578template<class Element>
579Element TMatrixTBase<Element>::Sum() const
580{
581 R__ASSERT(IsValid());
582
583 Element sum = 0.0;
584 const Element *ep = this->GetMatrixArray();
585 const Element * const fp = ep+fNelems;
586 while (ep < fp)
587 sum += *ep++;
588
589 return sum;
590}
591
592////////////////////////////////////////////////////////////////////////////////
593/// return minimum matrix element value
594
595template<class Element>
596Element TMatrixTBase<Element>::Min() const
597{
598 R__ASSERT(IsValid());
599
600 const Element * const ep = this->GetMatrixArray();
601 const Int_t index = TMath::LocMin(fNelems,ep);
602 return ep[index];
603}
604
605////////////////////////////////////////////////////////////////////////////////
606/// return maximum vector element value
607
608template<class Element>
609Element TMatrixTBase<Element>::Max() const
610{
611 R__ASSERT(IsValid());
612
613 const Element * const ep = this->GetMatrixArray();
614 const Int_t index = TMath::LocMax(fNelems,ep);
615 return ep[index];
616}
617
618////////////////////////////////////////////////////////////////////////////////
619/// Draw this matrix
620/// The histogram is named "TMatrixT" by default and no title
621
622template<class Element>
623void TMatrixTBase<Element>::Draw(Option_t *option)
624{
625 gROOT->ProcessLine(Form("THistPainter::PaintSpecialObjects((TObject*)0x%zx,\"%s\");",
626 (size_t)this, option));
627}
628
629////////////////////////////////////////////////////////////////////////////////
630/// Print the matrix as a table of elements.
631/// By default the format "%11.4g" is used to print one element.
632/// One can specify an alternative format with eg
633/// option ="f= %6.2f "
634
635template<class Element>
636void TMatrixTBase<Element>::Print(Option_t *option) const
637{
638 if (!IsValid()) {
639 Error("Print","Matrix is invalid");
640 return;
641 }
642
643 //build format
644 const char *format = "%11.4g ";
645 if (option) {
646 const char *f = strstr(option,"f=");
647 if (f) format = f+2;
648 }
649 char topbar[100];
650 snprintf(topbar,100,format,123.456789);
651 Int_t nch = strlen(topbar)+1;
652 if (nch > 18) nch = 18;
653 char ftopbar[20];
654 for (Int_t i = 0; i < nch; i++) ftopbar[i] = ' ';
655 Int_t nk = 1 + Int_t(TMath::Log10(fNcols));
656 snprintf(ftopbar+nch/2,20-nch/2,"%s%dd","%",nk);
657 Int_t nch2 = strlen(ftopbar);
658 for (Int_t i = nch2; i < nch; i++) ftopbar[i] = ' ';
659 ftopbar[nch] = '|';
660 ftopbar[nch+1] = 0;
661
662 printf("\n%dx%d matrix is as follows",fNrows,fNcols);
663
664 Int_t cols_per_sheet = 5;
665 if (nch <= 8) cols_per_sheet =10;
666 const Int_t ncols = fNcols;
667 const Int_t nrows = fNrows;
668 const Int_t collwb = fColLwb;
669 const Int_t rowlwb = fRowLwb;
670 nk = 5+nch*TMath::Min(cols_per_sheet,fNcols);
671 for (Int_t i = 0; i < nk; i++) topbar[i] = '-';
672 topbar[nk] = 0;
673 for (Int_t sheet_counter = 1; sheet_counter <= ncols; sheet_counter += cols_per_sheet) {
674 printf("\n\n |");
675 for (Int_t j = sheet_counter; j < sheet_counter+cols_per_sheet && j <= ncols; j++)
676 printf(ftopbar,j+collwb-1);
677 printf("\n%s\n",topbar);
678 if (fNelems <= 0) continue;
679 for (Int_t i = 1; i <= nrows; i++) {
680 printf("%4d |",i+rowlwb-1);
681 for (Int_t j = sheet_counter; j < sheet_counter+cols_per_sheet && j <= ncols; j++)
682 printf(format,(*this)(i+rowlwb-1,j+collwb-1));
683 printf("\n");
684 }
685 }
686 printf("\n");
687}
688
689////////////////////////////////////////////////////////////////////////////////
690/// Are all matrix elements equal to val?
691
692template<class Element>
693Bool_t TMatrixTBase<Element>::operator==(Element val) const
694{
695 R__ASSERT(IsValid());
696
697 if (val == 0. && fNelems == 0)
698 return kTRUE;
699
700 const Element * ep = GetMatrixArray();
701 const Element * const fp = ep+fNelems;
702 for (; ep < fp; ep++)
703 if (!(*ep == val))
704 return kFALSE;
705
706 return kTRUE;
707}
708
709////////////////////////////////////////////////////////////////////////////////
710/// Are all matrix elements not equal to val?
711
712template<class Element>
713Bool_t TMatrixTBase<Element>::operator!=(Element val) const
714{
715 R__ASSERT(IsValid());
716
717 if (val == 0. && fNelems == 0)
718 return kFALSE;
719
720 const Element * ep = GetMatrixArray();
721 const Element * const fp = ep+fNelems;
722 for (; ep < fp; ep++)
723 if (!(*ep != val))
724 return kFALSE;
725
726 return kTRUE;
727}
728
729////////////////////////////////////////////////////////////////////////////////
730/// Are all matrix elements < val?
731
732template<class Element>
733Bool_t TMatrixTBase<Element>::operator<(Element val) const
734{
735 R__ASSERT(IsValid());
736
737 const Element * ep = GetMatrixArray();
738 const Element * const fp = ep+fNelems;
739 for (; ep < fp; ep++)
740 if (!(*ep < val))
741 return kFALSE;
742
743 return kTRUE;
744}
745
746////////////////////////////////////////////////////////////////////////////////
747/// Are all matrix elements <= val?
748
749template<class Element>
750Bool_t TMatrixTBase<Element>::operator<=(Element val) const
751{
752 R__ASSERT(IsValid());
753
754 const Element * ep = GetMatrixArray();
755 const Element * const fp = ep+fNelems;
756 for (; ep < fp; ep++)
757 if (!(*ep <= val))
758 return kFALSE;
759
760 return kTRUE;
761}
762
763////////////////////////////////////////////////////////////////////////////////
764/// Are all matrix elements > val?
765
766template<class Element>
767Bool_t TMatrixTBase<Element>::operator>(Element val) const
768{
769 R__ASSERT(IsValid());
770
771 const Element * ep = GetMatrixArray();
772 const Element * const fp = ep+fNelems;
773 for (; ep < fp; ep++)
774 if (!(*ep > val))
775 return kFALSE;
776
777 return kTRUE;
778}
779
780////////////////////////////////////////////////////////////////////////////////
781/// Are all matrix elements >= val?
782
783template<class Element>
784Bool_t TMatrixTBase<Element>::operator>=(Element val) const
785{
786 R__ASSERT(IsValid());
787
788 const Element * ep = GetMatrixArray();
789 const Element * const fp = ep+fNelems;
790 for (; ep < fp; ep++)
791 if (!(*ep >= val))
792 return kFALSE;
793
794 return kTRUE;
795}
796
797////////////////////////////////////////////////////////////////////////////////
798/// Apply action to each matrix element
799
800template<class Element>
801TMatrixTBase<Element> &TMatrixTBase<Element>::Apply(const TElementActionT<Element> &action)
802{
803 R__ASSERT(IsValid());
804
805 Element *ep = this->GetMatrixArray();
806 const Element * const ep_last = ep+fNelems;
807 while (ep < ep_last)
808 action.Operation(*ep++);
809
810 return *this;
811}
812
813////////////////////////////////////////////////////////////////////////////////
814/// Apply action to each element of the matrix. To action the location
815/// of the current element is passed.
816
817template<class Element>
818TMatrixTBase<Element> &TMatrixTBase<Element>::Apply(const TElementPosActionT<Element> &action)
819{
820 R__ASSERT(IsValid());
821
822 Element *ep = this->GetMatrixArray();
823 for (action.fI = fRowLwb; action.fI < fRowLwb+fNrows; action.fI++)
824 for (action.fJ = fColLwb; action.fJ < fColLwb+fNcols; action.fJ++)
825 action.Operation(*ep++);
826
827 R__ASSERT(ep == this->GetMatrixArray()+fNelems);
828
829 return *this;
830}
831
832////////////////////////////////////////////////////////////////////////////////
833/// Randomize matrix element values
834
835template<class Element>
836TMatrixTBase<Element> &TMatrixTBase<Element>::Randomize(Element alpha,Element beta,Double_t &seed)
837{
838 R__ASSERT(IsValid());
839
840 const Element scale = beta-alpha;
841 const Element shift = alpha/scale;
842
843 Element * ep = GetMatrixArray();
844 const Element * const fp = ep+fNelems;
845 while (ep < fp)
846 *ep++ = scale*(Drand(seed)+shift);
847
848 return *this;
849}
850
851////////////////////////////////////////////////////////////////////////////////
852/// Check to see if two matrices are identical.
853
854template<class Element>
855Bool_t TMatrixTAutoloadOps::operator==(const TMatrixTBase<Element> &m1,const TMatrixTBase<Element> &m2)
856{
857 if (!AreCompatible(m1,m2)) return kFALSE;
858 return (memcmp(m1.GetMatrixArray(),m2.GetMatrixArray(),
859 m1.GetNoElements()*sizeof(Element)) == 0);
860}
861
862////////////////////////////////////////////////////////////////////////////////
863/// Square of the Euclidean norm of the difference between two matrices.
864
865template<class Element>
866Element TMatrixTAutoloadOps::E2Norm(const TMatrixTBase<Element> &m1,const TMatrixTBase<Element> &m2)
867{
868 if (gMatrixCheck && !AreCompatible(m1,m2)) {
869 ::Error("E2Norm","matrices not compatible");
870 return -1.0;
871 }
872
873 const Element * mp1 = m1.GetMatrixArray();
874 const Element * mp2 = m2.GetMatrixArray();
875 const Element * const fmp1 = mp1+m1.GetNoElements();
876
877 Element sum = 0.0;
878 for (; mp1 < fmp1; mp1++, mp2++)
879 sum += (*mp1 - *mp2)*(*mp1 - *mp2);
880
881 return sum;
882}
883
884////////////////////////////////////////////////////////////////////////////////
885/// Check that matrice sm1 and m2 areboth valid and have identical shapes .
886
887template<class Element1,class Element2>
888Bool_t TMatrixTAutoloadOps::AreCompatible(const TMatrixTBase<Element1> &m1,const TMatrixTBase<Element2> &m2,Int_t verbose)
889{
890 if (!m1.IsValid()) {
891 if (verbose)
892 ::Error("AreCompatible", "matrix 1 not valid");
893 return kFALSE;
894 }
895 if (!m2.IsValid()) {
896 if (verbose)
897 ::Error("AreCompatible", "matrix 2 not valid");
898 return kFALSE;
899 }
900
901 if (m1.GetNrows() != m2.GetNrows() || m1.GetNcols() != m2.GetNcols() ||
902 m1.GetRowLwb() != m2.GetRowLwb() || m1.GetColLwb() != m2.GetColLwb()) {
903 if (verbose)
904 ::Error("AreCompatible", "matrices 1 and 2 not compatible");
905 return kFALSE;
906 }
907
908 return kTRUE;
909}
910
911////////////////////////////////////////////////////////////////////////////////
912/// Compare two matrices and print out the result of the comparison.
913
914template<class Element>
915void TMatrixTAutoloadOps::Compare(const TMatrixTBase<Element> &m1,const TMatrixTBase<Element> &m2)
916{
917 if (!AreCompatible(m1,m2)) {
918 Error("Compare(const TMatrixTBase<Element> &,const TMatrixTBase<Element> &)","matrices are incompatible");
919 return;
920 }
921
922 printf("\n\nComparison of two TMatrices:\n");
923
924 Element norm1 = 0; // Norm of the Matrices
925 Element norm2 = 0;
926 Element ndiff = 0; // Norm of the difference
927 Int_t imax = 0; // For the elements that differ most
928 Int_t jmax = 0;
929 Element difmax = -1;
930
931 for (Int_t i = m1.GetRowLwb(); i <= m1.GetRowUpb(); i++) {
932 for (Int_t j = m1.GetColLwb(); j < m1.GetColUpb(); j++) {
933 const Element mv1 = m1(i,j);
934 const Element mv2 = m2(i,j);
935 const Element diff = TMath::Abs(mv1-mv2);
936
937 if (diff > difmax) {
938 difmax = diff;
939 imax = i;
940 jmax = j;
941 }
942 norm1 += TMath::Abs(mv1);
943 norm2 += TMath::Abs(mv2);
944 ndiff += TMath::Abs(diff);
945 }
946 }
947
948 printf("\nMaximal discrepancy \t\t%g", difmax);
949 printf("\n occurred at the point\t\t(%d,%d)",imax,jmax);
950 const Element mv1 = m1(imax,jmax);
951 const Element mv2 = m2(imax,jmax);
952 printf("\n Matrix 1 element is \t\t%g", mv1);
953 printf("\n Matrix 2 element is \t\t%g", mv2);
954 printf("\n Absolute error v2[i]-v1[i]\t\t%g", mv2-mv1);
955 printf("\n Relative error\t\t\t\t%g\n",
956 (mv2-mv1)/TMath::Max(TMath::Abs(mv2+mv1)/2,(Element)1e-7));
957
958 printf("\n||Matrix 1|| \t\t\t%g", norm1);
959 printf("\n||Matrix 2|| \t\t\t%g", norm2);
960 printf("\n||Matrix1-Matrix2||\t\t\t\t%g", ndiff);
961 printf("\n||Matrix1-Matrix2||/sqrt(||Matrix1|| ||Matrix2||)\t%g\n\n",
962 ndiff/TMath::Max(TMath::Sqrt(norm1*norm2),1e-7));
963}
964
965////////////////////////////////////////////////////////////////////////////////
966/// Validate that all elements of matrix have value val within maxDevAllow.
967
968template<class Element>
969Bool_t TMatrixTAutoloadOps::VerifyMatrixValue(const TMatrixTBase<Element> &m,Element val,Int_t verbose,Element maxDevAllow)
970{
971 R__ASSERT(m.IsValid());
972
973 if (m == 0)
974 return kTRUE;
975
976 Int_t imax = 0;
977 Int_t jmax = 0;
978 Element maxDevObs = 0;
979
980 if (TMath::Abs(maxDevAllow) <= 0.0)
981 maxDevAllow = std::numeric_limits<Element>::epsilon();
982
983 for (Int_t i = m.GetRowLwb(); i <= m.GetRowUpb(); i++) {
984 for (Int_t j = m.GetColLwb(); j <= m.GetColUpb(); j++) {
985 const Element dev = TMath::Abs(m(i,j)-val);
986 if (dev > maxDevObs) {
987 imax = i;
988 jmax = j;
989 maxDevObs = dev;
990 }
991 }
992 }
993
994 if (maxDevObs == 0)
995 return kTRUE;
996
997 if (verbose) {
998 printf("Largest dev for (%d,%d); dev = |%g - %g| = %g\n",imax,jmax,m(imax,jmax),val,maxDevObs);
999 if(maxDevObs > maxDevAllow)
1000 Error("VerifyElementValue","Deviation > %g\n",maxDevAllow);
1001 }
1002
1003 if(maxDevObs > maxDevAllow)
1004 return kFALSE;
1005 return kTRUE;
1006}
1007
1008////////////////////////////////////////////////////////////////////////////////
1009/// Verify that elements of the two matrices are equal within MaxDevAllow .
1010
1011template<class Element>
1012Bool_t TMatrixTAutoloadOps::VerifyMatrixIdentity(const TMatrixTBase<Element> &m1,const TMatrixTBase<Element> &m2,Int_t verbose,
1013 Element maxDevAllow)
1014{
1015 if (!AreCompatible(m1,m2,verbose))
1016 return kFALSE;
1017
1018 if (m1 == 0 && m2 == 0)
1019 return kTRUE;
1020
1021 Int_t imax = 0;
1022 Int_t jmax = 0;
1023 Element maxDevObs = 0;
1024
1025 if (TMath::Abs(maxDevAllow) <= 0.0)
1026 maxDevAllow = std::numeric_limits<Element>::epsilon();
1027
1028 for (Int_t i = m1.GetRowLwb(); i <= m1.GetRowUpb(); i++) {
1029 for (Int_t j = m1.GetColLwb(); j <= m1.GetColUpb(); j++) {
1030 const Element dev = TMath::Abs(m1(i,j)-m2(i,j));
1031 if (dev > maxDevObs) {
1032 imax = i;
1033 jmax = j;
1034 maxDevObs = dev;
1035 }
1036 }
1037 }
1038
1039 if (maxDevObs == 0)
1040 return kTRUE;
1041
1042 if (verbose) {
1043 printf("Largest dev for (%d,%d); dev = |%g - %g| = %g\n",
1044 imax,jmax,m1(imax,jmax),m2(imax,jmax),maxDevObs);
1045 if (maxDevObs > maxDevAllow)
1046 Error("VerifyMatrixValue","Deviation > %g\n",maxDevAllow);
1047 }
1048
1049 if (maxDevObs > maxDevAllow)
1050 return kFALSE;
1051 return kTRUE;
1052}
1053
1054////////////////////////////////////////////////////////////////////////////////
1055/// Stream an object of class TMatrixTBase<Element>.
1056
1057template<class Element>
1058void TMatrixTBase<Element>::Streamer(TBuffer &R__b)
1059{
1060 if (R__b.IsReading()) {
1061 UInt_t R__s, R__c;
1062 Version_t R__v = R__b.ReadVersion(&R__s, &R__c);
1063 if (R__v > 1) {
1064 R__b.ReadClassBuffer(TMatrixTBase<Element>::Class(),this,R__v,R__s,R__c);
1065 } else {
1066 Error("TMatrixTBase<Element>::Streamer","Unknown version number: %d",R__v);
1067 R__ASSERT(0);
1068 }
1069 if (R__v < 4) MakeValid();
1070 } else {
1071 R__b.WriteClassBuffer(TMatrixTBase<Element>::Class(),this);
1072 }
1073}
1074
1075// trick to return a reference to nan in operator(i,j_ when i,j are outside of range
1076template<class Element>
1077struct nan_value_t {
1078 static Element gNanValue;
1079};
1080template<>
1081Double_t nan_value_t<Double_t>::gNanValue = std::numeric_limits<Double_t>::quiet_NaN();
1082template<>
1083Float_t nan_value_t<Float_t>::gNanValue = std::numeric_limits<Float_t>::quiet_NaN();
1084
1085template<class Element>
1086Element & TMatrixTBase<Element>::NaNValue()
1087{
1088 return nan_value_t<Element>::gNanValue;
1089}
1090
1091
1092template class TMatrixTBase<Float_t>;
1093
1094template Bool_t TMatrixTAutoloadOps::operator== <Float_t>(const TMatrixFBase &m1,const TMatrixFBase &m2);
1095template Float_t TMatrixTAutoloadOps::E2Norm <Float_t>(const TMatrixFBase &m1,const TMatrixFBase &m2);
1096template Bool_t TMatrixTAutoloadOps::AreCompatible<Float_t,Float_t>
1097 (const TMatrixFBase &m1,const TMatrixFBase &m2,Int_t verbose);
1098template Bool_t TMatrixTAutoloadOps::AreCompatible<Float_t,Double_t>
1099 (const TMatrixFBase &m1,const TMatrixDBase &m2,Int_t verbose);
1100template void TMatrixTAutoloadOps::Compare <Float_t>(const TMatrixFBase &m1,const TMatrixFBase &m2);
1101template Bool_t TMatrixTAutoloadOps::VerifyMatrixValue <Float_t>(const TMatrixFBase &m,Float_t val,Int_t verbose,Float_t maxDevAllow);
1102template Bool_t TMatrixTAutoloadOps::VerifyMatrixValue <Float_t>(const TMatrixFBase &m,Float_t val);
1103template Bool_t TMatrixTAutoloadOps::VerifyMatrixIdentity<Float_t>(const TMatrixFBase &m1,const TMatrixFBase &m2,
1104 Int_t verbose,Float_t maxDevAllowN);
1105template Bool_t TMatrixTAutoloadOps::VerifyMatrixIdentity<Float_t>(const TMatrixFBase &m1,const TMatrixFBase &m2);
1106
1107template class TMatrixTBase<Double_t>;
1108
1109template Bool_t TMatrixTAutoloadOps::operator== <Double_t>(const TMatrixDBase &m1,const TMatrixDBase &m2);
1110template Double_t TMatrixTAutoloadOps::E2Norm <Double_t>(const TMatrixDBase &m1,const TMatrixDBase &m2);
1111template Bool_t TMatrixTAutoloadOps::AreCompatible<Double_t,Double_t>
1112 (const TMatrixDBase &m1,const TMatrixDBase &m2,Int_t verbose);
1113template Bool_t TMatrixTAutoloadOps::AreCompatible<Double_t,Float_t>
1114 (const TMatrixDBase &m1,const TMatrixFBase &m2,Int_t verbose);
1115template void TMatrixTAutoloadOps::Compare <Double_t>(const TMatrixDBase &m1,const TMatrixDBase &m2);
1116template Bool_t TMatrixTAutoloadOps::VerifyMatrixValue <Double_t>(const TMatrixDBase &m,Double_t val,Int_t verbose,Double_t maxDevAllow);
1117template Bool_t TMatrixTAutoloadOps::VerifyMatrixValue <Double_t>(const TMatrixDBase &m,Double_t val);
1118template Bool_t TMatrixTAutoloadOps::VerifyMatrixIdentity<Double_t>(const TMatrixDBase &m1,const TMatrixDBase &m2,
1119 Int_t verbose,Double_t maxDevAllow);
1120template Bool_t TMatrixTAutoloadOps::VerifyMatrixIdentity<Double_t>(const TMatrixDBase &m1,const TMatrixDBase &m2);
f
#define f(i)
Definition RSha256.hxx:104
e
#define e(i)
Definition RSha256.hxx:103
Bool_t
bool Bool_t
Definition RtypesCore.h:63
Int_t
int Int_t
Definition RtypesCore.h:45
Version_t
short Version_t
Definition RtypesCore.h:65
Float_t
float Float_t
Definition RtypesCore.h:57
kFALSE
constexpr Bool_t kFALSE
Definition RtypesCore.h:94
Double_t
double Double_t
Definition RtypesCore.h:59
kTRUE
constexpr Bool_t kTRUE
Definition RtypesCore.h:93
Option_t
const char Option_t
Definition RtypesCore.h:66
templateClassImp
#define templateClassImp(name)
Definition Rtypes.h:427
R__ASSERT
#define R__ASSERT(e)
Checks condition e and reports a fatal error if it's false.
Definition TError.h:125
Error
void Error(const char *location, const char *msgfmt,...)
Use this function in case an error occurred.
Definition TError.cxx:185
option
Option_t Option_t option
Definition TGWin32VirtualXProxy.cxx:44
data
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void data
Definition TGWin32VirtualXProxy.cxx:104
index
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t index
Definition TGWin32VirtualXProxy.cxx:168
format
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char Pixmap_t Pixmap_t PictureAttributes_t attr const char char ret_data h unsigned char height h Atom_t Int_t ULong_t ULong_t unsigned char prop_list Atom_t Atom_t Atom_t Time_t format
Definition TGWin32VirtualXProxy.cxx:249
gMatrixCheck
Int_t gMatrixCheck
Definition TMatrixTBase.cxx:33
Drand
Double_t Drand(Double_t &ix)
Random number generator [0....1] with seed ix.
Definition TMatrixTUtils.cxx:1877
gROOT
#define gROOT
Definition TROOT.h:406
Form
char * Form(const char *fmt,...)
Formats a string in a circular formatting buffer.
Definition TString.cxx:2489
snprintf
#define snprintf
Definition civetweb.c:1540
TBuffer
Buffer base class used for serializing objects.
Definition TBuffer.h:43
TBuffer::ReadVersion
virtual Version_t ReadVersion(UInt_t *start=nullptr, UInt_t *bcnt=nullptr, const TClass *cl=nullptr)=0
TBuffer::ReadClassBuffer
virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, const TClass *onfile_class=nullptr)=0
TBuffer::IsReading
Bool_t IsReading() const
Definition TBuffer.h:86
TBuffer::WriteClassBuffer
virtual Int_t WriteClassBuffer(const TClass *cl, void *pointer)=0
TElementActionT::Operation
virtual void Operation(Element &element) const =0
TElementPosActionT::Operation
virtual void Operation(Element &element) const =0
TMatrixTBase
TMatrixTBase.
Definition TMatrixTBase.h:84
TMatrixTBase::Sum
virtual Element Sum() const
Compute sum of elements.
Definition TMatrixTBase.cxx:579
TMatrixTBase::RowNorm
virtual Element RowNorm() const
Row matrix norm, MAX{ SUM{ |M(i,j)|, over j}, over i}.
Definition TMatrixTBase.cxx:490
TMatrixTBase::ColNorm
virtual Element ColNorm() const
Column matrix norm, MAX{ SUM{ |M(i,j)|, over i}, over j}.
Definition TMatrixTBase.cxx:517
TMatrixTBase::Randomize
virtual TMatrixTBase< Element > & Randomize(Element alpha, Element beta, Double_t &seed)
Randomize matrix element values.
Definition TMatrixTBase.cxx:836
TMatrixTBase::Sqr
virtual TMatrixTBase< Element > & Sqr()
Square each element of the matrix.
Definition TMatrixTBase.cxx:381
TMatrixTBase::GetMatrixArray
virtual const Element * GetMatrixArray() const =0
TMatrixTBase::GetNrows
Int_t GetNrows() const
Definition TMatrixTBase.h:123
TMatrixTBase::UnitMatrix
virtual TMatrixTBase< Element > & UnitMatrix()
Make a unit matrix (matrix need not be a square one).
Definition TMatrixTBase.cxx:417
TMatrixTBase::operator!=
Bool_t operator!=(Element val) const
Are all matrix elements not equal to val?
Definition TMatrixTBase.cxx:713
TMatrixTBase::Zero
virtual TMatrixTBase< Element > & Zero()
Set matrix elements to zero.
Definition TMatrixTBase.cxx:351
TMatrixTBase::Print
void Print(Option_t *name="") const override
Print the matrix as a table of elements.
Definition TMatrixTBase.cxx:636
TMatrixTBase::NonZeros
virtual Int_t NonZeros() const
Compute the number of elements != 0.0.
Definition TMatrixTBase.cxx:562
TMatrixTBase::E2Norm
virtual Element E2Norm() const
Square of the Euclidean norm, SUM{ m(i,j)^2 }.
Definition TMatrixTBase.cxx:544
TMatrixTBase::GetRowUpb
Int_t GetRowUpb() const
Definition TMatrixTBase.h:122
TMatrixTBase::Apply
virtual TMatrixTBase< Element > & Apply(const TElementActionT< Element > &action)
Apply action to each matrix element.
Definition TMatrixTBase.cxx:801
TMatrixTBase::GetRowLwb
Int_t GetRowLwb() const
Definition TMatrixTBase.h:121
TMatrixTBase::Min
virtual Element Min() const
return minimum matrix element value
Definition TMatrixTBase.cxx:596
TMatrixTBase::Max
virtual Element Max() const
return maximum vector element value
Definition TMatrixTBase.cxx:609
TMatrixTBase::GetColLwb
Int_t GetColLwb() const
Definition TMatrixTBase.h:124
TMatrixTBase::GetMatrix2Array
virtual void GetMatrix2Array(Element *data, Option_t *option="") const
Copy matrix data to array .
Definition TMatrixTBase.cxx:245
TMatrixTBase::GetNoElements
Int_t GetNoElements() const
Definition TMatrixTBase.h:127
TMatrixTBase::operator<
Bool_t operator<(Element val) const
Are all matrix elements < val?
Definition TMatrixTBase.cxx:733
TMatrixTBase::Draw
void Draw(Option_t *option="") override
Draw this matrix The histogram is named "TMatrixT" by default and no title.
Definition TMatrixTBase.cxx:623
TMatrixTBase::InsertRow
virtual TMatrixTBase< Element > & InsertRow(Int_t row, Int_t col, const Element *v, Int_t n=-1)
Copy n elements from array v to row rown starting at column coln.
Definition TMatrixTBase.cxx:271
TMatrixTBase::NaNValue
static Element & NaNValue()
Definition TMatrixTBase.cxx:1086
TMatrixTBase::GetColUpb
Int_t GetColUpb() const
Definition TMatrixTBase.h:125
TMatrixTBase::DoubleLexSort
static void DoubleLexSort(Int_t n, Int_t *first, Int_t *second, Element *data)
default kTRUE, when Use array kFALSE
Definition TMatrixTBase.cxx:42
TMatrixTBase::operator>
Bool_t operator>(Element val) const
Are all matrix elements > val?
Definition TMatrixTBase.cxx:767
TMatrixTBase::Sqrt
virtual TMatrixTBase< Element > & Sqrt()
Take square root of all elements.
Definition TMatrixTBase.cxx:399
TMatrixTBase::IsValid
Bool_t IsValid() const
Definition TMatrixTBase.h:146
TMatrixTBase::operator==
Bool_t operator==(Element val) const
Are all matrix elements equal to val?
Definition TMatrixTBase.cxx:693
TMatrixTBase::GetNcols
Int_t GetNcols() const
Definition TMatrixTBase.h:126
TMatrixTBase::Abs
virtual TMatrixTBase< Element > & Abs()
Take an absolute value of a matrix, i.e. apply Abs() to each element.
Definition TMatrixTBase.cxx:363
TMatrixTBase::Shift
virtual TMatrixTBase< Element > & Shift(Int_t row_shift, Int_t col_shift)
Shift the row index by adding row_shift and the column index by adding col_shift, respectively.
Definition TMatrixTBase.cxx:339
TMatrixTBase::IndexedLexSort
static void IndexedLexSort(Int_t n, Int_t *first, Int_t swapFirst, Int_t *second, Int_t swapSecond, Int_t *index)
Lexical sort on array data using indices first and second.
Definition TMatrixTBase.cxx:81
TMatrixTBase::operator<=
Bool_t operator<=(Element val) const
Are all matrix elements <= val?
Definition TMatrixTBase.cxx:750
TMatrixTBase::Streamer
void Streamer(TBuffer &) override
Stream an object of class TMatrixTBase<Element>.
Definition TMatrixTBase.cxx:1058
TMatrixTBase::IsSymmetric
virtual Bool_t IsSymmetric() const
Check whether matrix is symmetric.
Definition TMatrixTBase.cxx:216
TMatrixTBase::SetMatrixArray
virtual TMatrixTBase< Element > & SetMatrixArray(const Element *data, Option_t *option="")
Copy array data to matrix .
Definition TMatrixTBase.cxx:188
TMatrixTBase::operator>=
Bool_t operator>=(Element val) const
Are all matrix elements >= val?
Definition TMatrixTBase.cxx:784
TMatrixTBase::ExtractRow
virtual void ExtractRow(Int_t row, Int_t col, Element *v, Int_t n=-1) const
Store in array v, n matrix elements of row rown starting at column coln.
Definition TMatrixTBase.cxx:305
TMatrixTBase::NormByDiag
virtual TMatrixTBase< Element > & NormByDiag(const TVectorT< Element > &v, Option_t *option="D")
option:
Definition TMatrixTBase.cxx:436
TString
Basic string class.
Definition TString.h:139
TString::ToUpper
void ToUpper()
Change string to upper case.
Definition TString.cxx:1195
TString::Contains
Bool_t Contains(const char *pat, ECaseCompare cmp=kExact) const
Definition TString.h:632
TVectorT
TVectorT.
Definition TVectorT.h:27
n
const Int_t n
Definition legend1.C:16
TMath::LocMin
Long64_t LocMin(Long64_t n, const T *a)
Returns index of array with the minimum element.
Definition TMath.h:982
TMath::Max
Short_t Max(Short_t a, Short_t b)
Returns the largest of a and b.
Definition TMathBase.h:250
TMath::LocMax
Long64_t LocMax(Long64_t n, const T *a)
Returns index of array with the maximum element.
Definition TMath.h:1012
TMath::Sqrt
Double_t Sqrt(Double_t x)
Returns the square root of x.
Definition TMath.h:662
TMath::Min
Short_t Min(Short_t a, Short_t b)
Returns the smallest of a and b.
Definition TMathBase.h:198
TMath::Log10
Double_t Log10(Double_t x)
Returns the common (base-10) logarithm of x.
Definition TMath.h:762
TMath::Abs
Short_t Abs(Short_t d)
Returns the absolute value of parameter Short_t d.
Definition TMathBase.h:123
TMatrixTAutoloadOps::VerifyMatrixIdentity
Bool_t VerifyMatrixIdentity(const TMatrixTBase< Element > &m1, const TMatrixTBase< Element > &m2, Int_t verbose, Element maxDevAllow)
Verify that elements of the two matrices are equal within MaxDevAllow .
Definition TMatrixTBase.cxx:1012
TMatrixTAutoloadOps::Compare
void Compare(const TMatrixTBase< Element > &m1, const TMatrixTBase< Element > &m2)
Compare two matrices and print out the result of the comparison.
Definition TMatrixTBase.cxx:915
TMatrixTAutoloadOps::VerifyMatrixValue
Bool_t VerifyMatrixValue(const TMatrixTBase< Element > &m, Element val, Int_t verbose, Element maxDevAllow)
Validate that all elements of matrix have value val within maxDevAllow.
Definition TMatrixTBase.cxx:969
TMatrixTAutoloadOps::operator==
Bool_t operator==(const TMatrixTBase< Element > &m1, const TMatrixTBase< Element > &m2)
Check to see if two matrices are identical.
Definition TMatrixTBase.cxx:855
TMatrixTAutoloadOps::E2Norm
Element E2Norm(const TMatrixTBase< Element > &m1, const TMatrixTBase< Element > &m2)
Square of the Euclidean norm of the difference between two matrices.
Definition TMatrixTBase.cxx:866
TMatrixTAutoloadOps::AreCompatible
Bool_t AreCompatible(const TMatrixTBase< Element1 > &m1, const TMatrixTBase< Element2 > &m2, Int_t verbose=0)
Check that matrice sm1 and m2 areboth valid and have identical shapes .
Definition TMatrixTBase.cxx:888
v
@ v
Definition rootcling_impl.cxx:3699
nan_value_t
Definition TMatrixTBase.cxx:1077
nan_value_t::gNanValue
static Element gNanValue
Definition TMatrixTBase.cxx:1078
m
TMarker m
Definition textangle.C:8
sum
static uint64_t sum(uint64_t i)
Definition Factory.cxx:2345