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revision 2062, Sat Sep 1 21:06:52 2007 UTC revision 2183, Thu Apr 24 10:58:51 2008 UTC
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1    2008-04-24  Martin Maechler  <maechler@stat.math.ethz.ch>
2    
3            * R/expm.R: new file for all expm() methods; notably new ones for
4            diagonal*, triangular*, symmetric* and also simple "matrix".
5    
6    2008-04-23  Martin Maechler  <maechler@stat.math.ethz.ch>
7    
8            * R/dsyMatrix.R: setAs(.) rather than setIs(.)  "to dpoMatrix"
9    
10            * inst/test-tools.R (assert.EQ.mat): better message when not equal
11    
12            * src/dgeMatrix.c (dgeMatrix_matrix_crossprod): allow integer RHS.
13    
14            * R/AllClass.R (ddiMatrix,ldiMatrix): extend [dl]Matrix instead of
15            [dl]denseMatrix {identical slots; but more logical method dispatch}
16    
17    2008-04-23  Martin Maechler  <maechler@stat.math.ethz.ch>
18    
19            * R/sparseMatrix.R (summary): use length(<i-slot>) instead of nnzero()
20    
21            * R/diagMatrix.R (determinant): method
22    
23    2008-04-22  Martin Maechler  <maechler@stat.math.ethz.ch>
24    
25            * src/dsCMatrix.c (dsCMatrix_Cholesky): suppress CHOLMOD printing too
26    
27            * R/Rsparse.R (.viaC.to.R): uplo fix for symmetric & triangular
28    
29            * R/dsCMatrix.R (determinant): switch to use Cholesky( 'LDL' ) and
30            its diagonal
31    
32    2008-04-21  Martin Maechler  <maechler@stat.math.ethz.ch>
33    
34            * R/dMatrix.R (Summary): short-cut for prod(<sparse>)
35    
36            * R/not.R: fix !<"U"-diag-ltrMatrix> ; drop {R < 2.6.0}-branch
37    
38            * R/Auxiliaries.R (tT2gT): fix for "U"-diag-ltTMatrix
39    
40            * R/AllClass.R: ltTMatrix validity: call (more stringent) tTMatrix_validate
41    
42    2008-04-19  Martin Maechler  <maechler@stat.math.ethz.ch>
43    
44            * R/Ops.R (Ops.x.x): aux.function, not just for (dMatrix,dMatrix)
45    
46            * R/Ops.R (.do.Logic.lsparse): fix NA case
47    
48            * R/Tsparse.R (replTmat): fix r.sym case, using indTri()
49    
50            * R/Auxiliaries.R (nnzero): fix special cases, using
51            * R/Auxiliaries.R (indDiag): new utility
52            * R/Auxiliaries.R (indTri): new argument 'diag'
53    
54            * R/dMatrix.R: Summmary(<ddenseMatrix>): different branch for dsy*
55    
56    2008-04-18  Martin Maechler  <maechler@stat.math.ethz.ch>
57    
58            * R/diagMatrix.R: "Summary" methods, and more "Arith" / "Ops"
59    
60            * src/Csparse.c (Csparse_drop): preserve (uplo,diag) for
61            ".tCMatrix" triangular matrix.
62    
63            * R/Auxiliaries.R (drop0): use diagU2N(); according to helpfile,
64            'clx' can be class *or* class representation.
65            (nnzSparse): new.
66            (non0ind): new 'xtendSymm' argument; used in
67            * R/Ops.R:
68    
69            * R/pMatrix.R: more efficient determinant() method
70    
71    2008-04-17  Martin Maechler  <maechler@stat.math.ethz.ch>
72    
73            * [disactivated] R/Matrix.R (det): det() as base::det(), but with Matrix environment
74            * [disactivated] NAMESPACE: export(det)
75    
76            * R/diagMatrix.R (mkDiag): new substitute for diag()
77    
78            * R/Auxiliaries.R (nnzero): fix for "diagU2N"-case
79            (as0, as1): new utility.
80    
81            * R/Csparse.R (diag, band): need diagU2N()
82    
83            * src/dgeMatrix.c (get_norm): return NA when 'x' slot has NA/NaN.
84    
85            * R/lMatrix.R: coerce(nMatrix |-> lMatrix) fix
86    
87            * R/Ops.R (Compare): fix <nsp> o <nsp> case
88    
89            * R/nsparseMatrix.R, R/pMatrix.R: is.na() method
90    
91    2008-04-16  Martin Maechler  <maechler@stat.math.ethz.ch>
92    
93            * R/Auxiliaries.R (signPerm): new utility for
94            * R/Auxiliaries.R (detSparseLU): determinant() via sparseLU
95    
96            * src/dsCMatrix.c (dsCMatrix_LDL_D): suppress 'CHOLMOD warning';
97            since we have our own error handler (and can use tryCatch() from R).
98    
99    2008-04-15  Martin Maechler  <maechler@stat.math.ethz.ch>
100    
101            * R/dgTMatrix.R (image): ha! set col=NA if lwd is small -- very nice!
102    
103            * R/dsCMatrix.R (determinant): use tryCatch() and switch to lu()
104            when not positive definite.
105    
106            * R/Auxiliaries.R (asTri): new auxiliary
107            (non0.i): make *much* faster for Tsparse with many non-zero
108            entries; add 'uniqT = TRUE' argument to be used when sorting is undesired.
109    
110            * tests/Class+Meth.R (dotestMat): now build on checkMatrix() from
111            test-tools.R , see below
112    
113            * R/dMatrix.R: fix "Summary" method: + diagU2N()
114    
115            * NAMESPACE, R/Matrix.R: add mean() method
116    
117    2008-04-12  Martin Maechler  <maechler@stat.math.ethz.ch>
118    
119            * R/dgTMatrix.R (image): allow to *not* take abs(), and use
120            cold-hot colors; try *changed* default useAbs = FALSE
121            * man/image-methods.Rd:  nice examples
122    
123    2008-04-11  Martin Maechler  <maechler@stat.math.ethz.ch>
124    
125            * inst/test-tools.R (checkMatrix): new function for modularizing part
126            of tstMatrixClass() in tests/Class+Meth.R
127    
128            * R/dsCMatrix.R: coercion from "matrix"
129            * R/ltTMatrix.R, R/ntTMatrix.R: ditto (change it).
130    
131            * tests/Class+Meth.R (tstMatrixClass): some cleanup;
132            add test for as(matrix(,0,0), <class>)
133    
134    2008-04-09  Martin Maechler  <maechler@stat.math.ethz.ch>
135    
136            * src/dgeMatrix.c (dgeMatrix_determinant): for n == 0,
137            work as determinant(matrix(,0,0)).
138    
139            * src/dgCMatrix.c (dgCMatrix_LU): return {L,U} as dtCMatrix
140            * man/sparseLU-class.Rd: ditto
141    
142            * R/dgCMatrix.R (determinant): method building on lu()
143            * R/sparseMatrix.R, Matrix.R, ...: ditto
144    
145            * R/Auxiliaries.R (mkDet): auxiliary for determinant()
146    
147    2008-04-07  Martin Maechler  <maechler@stat.math.ethz.ch>
148    
149            * R/sparseMatrix.R (summary<sparseMatrix>): no 'x' column for
150            pattern matrices.
151    
152    2008-04-02  Martin Maechler  <maechler@stat.math.ethz.ch>
153    
154            * src/dense.c (dense_to_Csparse): all declarations *before*
155            R_CheckStack(); needed e.g. for ancient gcc 2.96.
156    
157    
158    2008-03-29  Martin Maechler  <maechler@stat.math.ethz.ch>
159    
160            * DESCRIPTION (Version): 0.999375-9 --- need to release
161            for R-devel (and R 2.7.0 alpha soon).
162    
163            * R/AllClass.R: drop "double" from "atomicVector" class union
164    
165            * R/AllGeneric.R (rcond): check for base::rcond instead of R version
166            * R/dgeMatrix.R: ditto
167    
168            * R/sparseMatrix.R (summary): count NAs
169    
170            * inst/doc/Intro2Matrix.Rnw: changes, aim for *one* introduction.
171    
172    2008-03-28  Martin Maechler  <maechler@stat.math.ethz.ch>
173    
174            * R/AllGeneric.R: rcond(., norm) instead of rcond(., type), in
175            order to become compatible to new R 2.7.0 base::rcond().
176    
177    2008-03-25  Martin Maechler  <maechler@stat.math.ethz.ch>
178    
179            * DESCRIPTION (Version,Date): 0.999375-8 --- released to CRAN
180    
181            * R/diagMatrix.R (Ops): fix newly introduce bug in <.di> o <numeric>
182    
183            * inst/test-tools.R (isValid): new utility, used much in
184            * tests/simple.R:
185    
186            * man/BunchKaufman-methods.Rd: added too
187    
188    2008-03-24  Martin Maechler  <maechler@stat.math.ethz.ch>
189    
190            * R/dsyMatrix.R: add BunchKaufman() methods.
191            * R/dspMatrix.R:
192    
193            * src/init.c: add dsyMatrix_trf
194    
195    2008-03-23  Douglas Bates <bates@stat.wisc.edu>
196    
197            * DESCRIPTION (Version): release 0.999375-7
198            * src/CHMfactor.c (CHMfactor_update): fix
199    
200    2008-03-22  Martin Maechler  <maechler@stat.math.ethz.ch>
201    
202            * src/dsCMatrix.c (dsCMatrix_LDL_D): cleanup, also using
203            internal_chm_factor().
204    
205            * R/AllGeneric.R: do *not* define a "chol" generic
206                    (but rather use the implicit one *without* making pivot
207                    part of the signature)
208            * R/*.R: drop the 'pivot' from chol's signature and make
209                    'pivot=FALSE' a default argument of method definitions.
210    
211            * .Rbuildignore: add 'wrld_1deg': I.e. do not put it into released
212            version of Matrix
213    
214    2008-03-18  Martin Maechler  <maechler@stat.math.ethz.ch>
215    
216            * R/Tsparse.R (.T.2.n): drop 0's before coercion to "nMatrix"
217    
218            * R/sparseMatrix.R (is.na): new simple method
219            * R/denseMatrix.R (is.na): ditto.
220    
221            * R/diagMatrix.R (.symDiagonal): newly exported utility.
222    
223            * R/diagMatrix.R (Ops): <diag> * <numeric> should not become dgeMatrix!
224    
225            * src/UFsparse_download.sh: -->
226            * src/CHOLMOD/: update to CHOLMOD version 1.6 (Nov.2007)
227    
228    2008-03-17  Martin Maechler  <maechler@stat.math.ethz.ch>
229    
230            * src/dsCMatrix.c (dsCMatrix_LDL_D): even faster utility with same
231            functionality; barely tested in
232            * tests/factorizing.R
233    
234            * src/Csparse.c (diag_tC): new functionality to enable faster
235            determinant(<dsCMatrix>, .) in
236            * R/dsCMatrix.R
237    
238    2008-03-17 18:53  Douglas Bates <bates@stat.wisc.edu>
239    
240            * R/CHMfactor.R, inst/include/Matrix.h, inst/include/Matrix_stubs.c,
241              src/CHMfactor.c, src/CHMfactor.h,
242              man/CHMfactor-class.Rd, src/init.c, tests/factorizing.R:
243              Log-determinant of the parent matrix from a CHMfactor object as
244              chm_factor_ldetL2; documentation and support
245    
246    2008-03-15  Martin Maechler  <maechler@stat.math.ethz.ch>
247    
248            * R/dsCMatrix.R: enable determinant(<dsCMatrix>, .) via chol(.)
249    
250    2008-03-14  Martin Maechler  <maechler@stat.math.ethz.ch>
251    
252            * R/dsCMatrix.R: setAs(., "dsCMatrix") but with a deprecation
253            warning.
254    
255    2008-03-13  Martin Maechler  <maechler@stat.math.ethz.ch>
256    
257            * DESCRIPTION (Version, Date): bug-fix release 0.999375-6
258    
259            * R/diagMatrix.R (diag2tT.u): utility to be smarter in
260              <diagonal> o <sparse_triangular>
261              setAs(., "nMatrix") added.
262    
263            * R/diagMatrix.R (Diagonal): Diagonal(4, x=3) now works too
264    
265            * R/Auxiliaries.R (.diagU2N): more careful coercion in 2 steps
266                    new argument 'checkDense = FALSE'.
267    
268    
269    2008-03-07  Martin Maechler  <maechler@stat.math.ethz.ch>
270    
271            * src/dgeMatrix.c (dgeMatrix_exp): fix the octave-origin bug in the
272            back-permutation of the matrix exponential.
273    
274            * tests/matr-exp.R: test the fix (for an example where expm() was wrong).
275    
276            * DESCRIPTION (Date,Version): ready to release 0.999375-5
277    
278            * tests/simple.R: testing diagN2U
279    
280    2008-03-06  Martin Maechler  <maechler@stat.math.ethz.ch>
281    
282            * R/Auxiliaries.R (diagN2U): interface to
283    
284            * src/Csparse.c (Csparse_diagN2U): .Call()able SEXP version of chm_diagN2U()
285    
286            * tests/matprod.R: test for triangularity preserving <dtC> %*% <dtC>
287    
288    2008-03-05  Martin Maechler  <maechler@stat.math.ethz.ch>
289    
290            * src/chm_common.c (chm_diagN2U): new utility.
291    
292            * src/Csparse.c (Csparse_Csparse_crossprod, Csparse_Csparse_prod):
293            make use of chm_diagN2U() and hence now preserve triangularity and
294            unit-triangularity.
295    
296            * DESCRIPTION (LicenseDetails): new; such that 'License:' becomes "canonical"
297    
298    2008-03-04  Martin Maechler  <maechler@stat.math.ethz.ch>
299    
300            * R/diagMatrix.R (subDiag): fix when x[..] became a vector
301    
302            * src/Tsparse.c (Tsparse_diagU2N): new utility, necessary for e.g.
303            * src/Csparse.c (Csparse_crossprod): use [CT]sparse_diagU2N() !!
304    
305            * R/Auxiliaries.R (.diagU2N): make use of new Tsparse_diagU2N
306    
307            * R/Ops.R ("-" (<sparseMatrix>)): use diagU2N()
308    
309            * src/chm_common.c (AS_CHM_FINISH): add note about problem
310            for triangular (diag = "U").
311    
312    2008-02-21  Martin Maechler  <maechler@stat.math.ethz.ch>
313    
314            * R/Auxiliaries.R (as_Csparse2): drop this, replacing by
315            * R/bind.R:  .Call(dense_to_Csparse, *)
316    
317    2008-02-20  Martin Maechler  <maechler@stat.math.ethz.ch>
318    
319            * R/Matrix.R (Matrix): no longer use coercions to specific classes
320                    (since we are discouraging them in user code).
321    
322            * tests/*.R: also replaces coercions to specific classes by
323            coercions to super classes.
324    
325            * R/denseMatrix.R (.dense2C): simplified by using forceSymmetric()
326    
327    
328    2008-02-19  Martin Maechler  <maechler@stat.math.ethz.ch>
329    
330            * man/CAex.Rd: example: coerce to symmetric*, not dsC*
331    
332            * src/dense.c (dense_band): generalized from ddense_band
333    
334            * R/ddenseMatrix.R (.trilDense,.triuDense, .bandDense):
335              now for "denseMatrix" (instead of just "ddense*"); much
336              simplified setMethod()s for these.
337    
338            * src/dense.c (dense_to_symmetric): generalized from ddense_*
339    
340    2008-02-18  Martin Maechler  <maechler@stat.math.ethz.ch>
341    
342            * R/AllGeneric.R: forceSymmetric() generic: fast no-checking
343            version of as(*, "symmetricMatric").
344    
345            * src/dense.c (ddense_to_symmetric): add 'symm_test' argument, and
346            * R/symmetricMatrix.R: set it TRUE in coercion to "symmetricMatrix"
347    
348    2008-02-16  Martin Maechler  <maechler@stat.math.ethz.ch>
349    
350            * R/Matrix.R (subset.ij): utility, as first step to faster
351               M [ <ij-matrix> ] indexing.
352    
353            * R/Matrix.R (.M.sub.i.logical): M[ <logical> ] : try better.
354    
355            * src/dense.c (ddense_symmpart, ddense_skewpart): new functions
356            for more efficient symmpart() and skewpart() methods.
357    
358            * src/Mutils.c (equal_string_vectors): utility
359    
360            * src/dense.c (ddense_to_symmetric): new function used in
361    
362            * R/symmetricMatrix.R: setAs(., "symmetricMatrix")
363    
364            * R/sparseMatrix.R, et_al (isSymmetric): add '...' to formals, in
365            order to match the generic (and evade .local(..)).
366    
367            * R/dsCMatrix.R: dgC -> dsC: use C code!
368    
369            * NAMESPACE, R/AllGeneric.R (symmpart, skewpart): new functions
370            as per TODO
371    
372            * R/Auxiliaries.R (setZero, all0Matrix): new utilities
373    
374            * R/symmetricMatrix.R: obvious symmpart(), skewpart() methods
375    
376    
377    2008-02-15  Martin Maechler  <maechler@stat.math.ethz.ch>
378    
379            * R/Ops.R (.Arith.Csparse): use diagU2N when needed in triangular
380    
381            * R/Auxiliaries.R (non0.i): take out of non0ind
382    
383            * R/ddenseMatrix.R (.trilDense, .triuDense, .bandDense):
384            make tril(), triu(), band() work for "matrix" and all "dense*"
385    
386            * R/triangularMatrix.R (.tri[lu].tr): need .diagU2N(*)
387            * tests/simple.R: test the fix above
388    
389            * R/sparseMatrix.R ([): simplification: no coerce to <general>
390                    before we use as(., <Tsparse>)[...] anyway
391    
392            * R/Rsparse.R (.viaC.to.R): mostly instead of .viaC.to.dgR()
393    
394            * R/triangularMatrix.R (isTriangular): methods for all subclasses
395            instead of "triangularMatrix" -- just to disambiguate
396    
397    2008-02-14  Martin Maechler  <maechler@stat.math.ethz.ch>
398    
399            * tests/Class+Meth.R (dotestMat): add m[FALSE, FALSE] { <-> TODO}
400            * tests/indexing.R: example that fails above
401    
402    2008-01-26  Martin Maechler  <maechler@stat.math.ethz.ch>
403    
404            * R/Matrix.R (.M.sub.i.2col): fix for logical matrix indexing
405            * R/Tsparse.R (.TM.sub.i.2col, .TM.repl.i.2col): ditto;
406                    now, M[lower.tri(M)] and  M[lower.tri(M)] <- v  work better
407    
408            * src/Tsparse.c (Tsparse_to_tCsparse): new fast utility.
409            * src/Tsparse.h, init.c: ditto
410            * R/Auxiliaries.R (isTriT): new; faster than going via Csparse
411                 both isTriC() and isTriT() now return TRUE with "kind" or FALSE.
412            * R/sparseMatrix.R (isTriangular): hence simplified
413    
414    2008-01-24  Martin Maechler  <maechler@stat.math.ethz.ch>
415    
416            * R/Ops.R (.Arith.Csparse): new utility factored out of former
417              <dgC> o <dgC>, extended for triangular and also used in  <dtC> o <dtC>.
418    
419    2008-01-23  Martin Maechler  <maechler@stat.math.ethz.ch>
420    
421            * tests/factorizing.R (checkSchur): and more tests for checking Schur()
422    
423            * inst/test-tools.R (isOrthogonal): new function; also file restructured
424    
425    2008-01-22  Martin Maechler  <maechler@stat.math.ethz.ch>
426    
427            * R/ngTMatrix.R: allow as(<numeric matrix>, "ngTMatrix") and hence
428            coercion to "nMatrix" and "pMatrix"
429    
430            * R/AllClass.R: "Schur" class;  "number" class union
431            * man/number-class.Rd:
432            * man/Schur-class.Rd:
433    
434            * R/eigen.R (.dgeSchur): utility, and return "Schur" class
435            (.simpleSchur): Schur() method for diagonal matrices
436            (.triSchur):    Schur() method for triangular matrices
437            (Schur.sym):    Schur() for symmetric matrices {building on eigen()}.
438    
439    
440    2008-01-21  Martin Maechler  <maechler@stat.math.ethz.ch>
441    
442            * src/dgCMatrix.c (dgCMatrix_QR): set @Dim slot (as per doc)
443    
444    2008-01-15  Martin Maechler  <maechler@stat.math.ethz.ch>
445    
446            * R/CHMfactor.R (solve): method for b="numeric", but also b="ANY"
447                    in order to ensure 'system = *' is not lost;
448                    formals()$system instead of cut&paste.
449            * tests/factorizing.R: test solve(<CHM..>, <numeric>)
450    
451    2008-01-11  Martin Maechler  <maechler@stat.math.ethz.ch>
452    
453            * DESCRIPTION (Date): make ready for release --> 0.999375-4
454    
455            * R/dgeMatrix.R: fix rcond() method for "dgeMatrix".
456    
457    2007-12-08  Martin Maechler  <maechler@stat.math.ethz.ch>
458    
459            * R/pMatrix.R: as(*, "matrix") now returns 0/1 *integer* matrix,
460                    and hence does as.vector(.).
461            * man/pMatrix-class.Rd: docs
462            * R/sparseMatrix.R: fix for printing "integer sparse"
463    
464            * tests/Class+Meth.R (tstMatrixClass): test M[FALSE], M[2] etc
465    
466            * R/Matrix.R and others: use "exact" function argument list for
467                    both "["   : (x, i,j, ..., drop)
468                    and  "[<-" : (x, i,j, ..., value)
469    
470            * R/denseMatrix.R: M[i] and M[i] <- v  (i vector) now work
471            * R/Tsparse.R (replTmat):    ditto
472            * R/diagMatrix.R (replDiag): ditto
473            * R/Csparse.R (replCmat):    ditto {was it worth the pain?}
474            * tests/indexing.R: testing the above
475    
476    2007-12-07  Martin Maechler  <maechler@stat.math.ethz.ch>
477    
478            * R/sparseMatrix.R (cov2cor): method for sparse matrices
479    
480            * R/diagMatrix.R ([<-): fix   D[ cbind(i,j) ] <- v
481    
482            * R/bind2.R: fix for Rsparse* and rbind2(dense,dense)
483    
484            * tests/Class+Meth.R: test cbind2, rbind2  and  diag<-
485    
486    2007-12-06  Martin Maechler  <maechler@stat.math.ethz.ch>
487    
488            * R/Matrix.R: "generic" cov2cor() method
489    
490            * R/nearPD.R: new 'only.values', 'keepDiag' arguments;
491                    speed up Q %*% D %*% t(Q)
492            * tests/dpoMatrix.R: test nearPD()
493    
494    2007-12-05  Doug Bates and Martin Maechler
495    
496            * R/sparseMatrix.R: xtabs(*, sparse=.) function; an extention of
497            stats::xtabs() allowing to create sparse matrices.
498    
499    2007-10-08  Martin Maechler  <maechler@stat.math.ethz.ch>
500    
501            * DESCRIPTION (Version): *-4 (released *-3 two days ago)
502    
503    2007-10-06  Martin Maechler  <maechler@stat.math.ethz.ch>
504    
505            * R/pMatrix.R: solve(<Matrix>, <pMatrix>)
506    
507    2007-10-05  Martin Maechler  <maechler@stat.math.ethz.ch>
508    
509            * R/LU.R: solve() method for "denseLU"
510    
511    2007-10-01  Martin Maechler  <maechler@stat.math.ethz.ch>
512    
513            * DESCRIPTION (Version): 0.999375-3 preparing for release
514    
515            * R/AllGeneric.R: simplify  if(.) .. else .. for R <= 2.5.1
516    
517            * R/Matrix.R (Matrix): .Internal(matrix(..)) different for R >= 2.7.0
518    
519    2007-09-26  Martin Maechler  <maechler@stat.math.ethz.ch>
520    
521            * R/pMatrix.R (.m.mult.pMat): fix <matrix> %*% <pMatrix>,
522              thanks to Kasper Kristensen.
523            * tests/matprod.R: regression test for that.
524    
525    2007-09-23 17:32  Douglas Bates <bates@stat.wisc.edu>
526    
527            * [r4778] R/AllGeneric.R: Check R version before defining generics for
528              primitives
529    
530    2007-09-13  Martin Maechler  <maechler@stat.math.ethz.ch>
531    
532            * R/denseMatrix.R (rcond): method
533            * R/sparseQR.R (rcond): method, use x or t(x)
534    
535    2007-09-12  Martin Maechler  <maechler@stat.math.ethz.ch>
536    
537            * R/dgeMatrix.R (rcond): method: work via qr.R() for non-square
538            matrices.
539            * R/sparseMatrix.R: Ditto for all other rcond() method definitions.
540    
541            * man/rcond.Rd: mention the more general definition, and add
542            example for non-square matrices.
543    
544            * man/chol.Rd: new file, for the S4 chol() generic and all methods.
545    
546    2007-09-11  Martin Maechler  <maechler@stat.math.ethz.ch>
547    
548            * R/sparseQR.R: add qr.R() method [to be used for rcond()]
549    
550  2007-09-01  Martin Maechler  <maechler@stat.math.ethz.ch>  2007-09-01  Martin Maechler  <maechler@stat.math.ethz.ch>
551    
552          * R/Matrix.R ([<-): add (Matrix,missing,ANY,Matrix) etc          * R/Matrix.R ([<-): add (Matrix,missing,ANY,Matrix) etc

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