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revision 1615, Thu Oct 5 16:30:46 2006 UTC revision 1827, Wed Apr 25 22:22:41 2007 UTC
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1    2007-04-25  Douglas Bates  <bates@stat.wisc.edu>
2    
3            * DESCRIPTION,src/Makefile: require R>= 2.5.0 and remove Lapack
4            code that is now part of the R Lapack library.
5    
6            * src/init.c,inst/include/{Matrix_stubs.c,cholmod.h}:export
7            cholmod_factorize_p (used in lme4 for GLMMs and NLMMs).
8    
9    2007-04-12  Martin Maechler  <maechler@stat.math.ethz.ch>
10    
11            * R/dgTMatrix.R (mat2dgT): care about NAs
12    
13    2007-04-11  Martin Maechler  <maechler@stat.math.ethz.ch>
14    
15            * R/kronecker.R: triangularity preserving methods
16    
17    2007-03-27  Martin Maechler  <maechler@stat.math.ethz.ch>
18    
19            * R/kronecker.R: new file collecting kronecker() methods in one
20                    place.  Goal: become much faster!
21    
22    2007-03-23  Martin Maechler  <maechler@stat.math.ethz.ch>
23    
24            * src/dtCMatrix.c (dtCMatrix_solve): use the new code from Kasper
25            Kristensen based cs_spsolve() instead of _lsolve & _usolve which
26            can be much faster.
27    
28            * tests/matprod.R: add regression tests for these (upper & lower).
29    
30    2007-03-19  Martin Maechler  <maechler@stat.math.ethz.ch>
31    
32            * R/Matrix.R (diff): method for our Matrices.
33    
34            * R/sparseMatrix.R (isDiagonal): check dim()!
35    
36    2007-03-17  Martin Maechler  <maechler@stat.math.ethz.ch>
37    
38            * R/Matrix.R (dim<-): new method for "reshape()" built on a
39            proposal from Tamas Papp.
40    
41    2007-03-16  Martin Maechler  <maechler@stat.math.ethz.ch>
42    
43            * R/AllGeneric.R: remove all  if(!isGeneric(.))  clauses
44    
45            * R/zzz.R (.onLoad, .onUnload): do *not* leave bind_activation(TRUE);
46            rather define and export  cBind() and rBind() only.
47            --> useRs *must* change code that used to have cbind()/rbind() !!
48    
49            * R/bind.R: change tests from cbind() to cBind() and similarly to rBind()
50            * R/bind.Rout.save: ditto
51    
52    2007-02-16  Douglas Bates  <bates@r-project.org>
53    
54            * DESCRIPTION (Date, Version): 0.9975-11 with new date
55            * src/dgCMatrix.c (R_to_CMatrix, compressed_to_TMatrix): remove
56            const modifier on declaration of the array 'valid'
57    
58    2007-02-12  Douglas Bates  <bates@stat.wisc.edu>
59    
60            * R/CHMfactor.R: Add image method (coercion to sparseMatrix).
61    
62    2007-02-05  Martin Maechler  <maechler@stat.math.ethz.ch>
63    
64            * DESCRIPTION (Date, Version): 0.9975-10 with new date.
65    
66            * R/Ops.R (Arith): make sure Csparse o Csparse also works for e.g. ntCMatrix
67            * tests/simple.R: test the above and some of these coercions:
68    
69            * R/nsparseMatrix.R: coercing "Csparse" to "lsparseMatrix";
70                    be careful to avoid infinite recursion, using new coercions in
71            * R/ngCMatrix.R and nsC... and ntC...
72            * R/lsparseMatrix.R: ditto
73    
74            * R/SparseM-conv.R: more conversion, notably for triplet matrices.
75    
76            * src/dgCMatrix.c (R_to_C_Matrix): port Doug's fix and
77            * R/Rsparse.R: reactivate .Call()s
78    
79            * tests/Class+Meth.R: a bit more on actual classes
80    
81    2007-02-04  Douglas Bates  <bates@stat.wisc.edu>
82    
83            * src/dgCMatrix.c (compressed_to_TMatrix): fix memory bug using strdup()
84    
85    2007-02-03  Martin Maechler  <maechler@stat.math.ethz.ch>
86    
87            * DESCRIPTION (Version): 0.9975-10 to upload
88    
89            * tests/Class+Meth.R (tstMatrixClass): require coercions to
90            specific classes less unconditionally.
91    
92            * R/Auxiliaries.R: get rid of as_Tsparse() and as_Rsparse()
93    
94            * R/Tsparse.R (triu): etc, use as(*, "TsparseMatrix") instead of as_Tsparse()
95    
96            * R/Rsparse.R (.R.2.T): R-level workaround using compressed_to_TMatrix.
97            * R/Rsparse.R (.R.2.C): R-level workaround since C-level
98            R_to_CMatrix segfaults on one platform.
99            Eliminate most coercion method to *specific* classes, and replace
100            with virtual classes coercions.
101    
102    
103    2007-02-01  Martin Maechler <maechler@stat.math.ethz.ch>
104    
105            * src/init.c: export the CHM...._validate() placeholders, since
106            they *are* called.
107    
108            * tests/Class+Meth.R (classCanCoerce): and starting to test
109            all as(<from>, <to>)
110    
111    2007-01-30  Martin Maechler  <maechler@stat.math.ethz.ch>
112    
113            * R/Tsparse.R ([): more care when subsetting triangular Tsparse
114            * tests/indexing.R: tested now
115            * tests/indexing.Rout.save: updated
116    
117            * src/Csparse.c (Csparse_to_dense): use Rkind = -1 for PATTERN to
118            * src/chm_common.c (chm_dense_to_SEXP): return "ngeMatrix" when
119            appropriate.
120    
121            * NAMESPACE: export a trivial
122            * R/Matrix.R: drop() Matrix-method
123    
124            * R/AllClass.R: moved all prototypes to virtual super classes.
125    
126            * R/Rsparse.R: many more coercions to have less exceptions in
127            * tests/Class+Meth.R:
128    
129            * R/Ops.R (Compare): tweak for case with NA
130            * tests/simpl.R: hence another 'FIXME' eliminated
131    
132    2007-01-29  Martin Maechler  <maechler@stat.math.ethz.ch>
133    
134            * R/diagMatrix.R (solve): the obvious methods for diagonalMatrix
135            objects.
136    
137            * tests/Class+Meth.R (tstMatrixClass): now testing diag(), nnzero(),
138              and more of "!", "&", "|", all, any; coercions
139    
140            * R/Rsparse.R: many coercions (which enable quite a few other
141            methods), thanks to enhancements in
142            * src/dgCMatrix.c (R_to_CMatrix): new, and
143            * src/dgCMatrix.c (compressed_to_TMatrix): now for (d,l,n) ,
144            symmetric & triangular and ..RMatrix objects.
145    
146            * src/TMatrix_as.c (Matrix_T_as_DENSE,Matrix_T_as_GENERAL):
147            renamed file from src/dsTMatrix.c;
148            now dealing with symmetric and triangular Tsparse coercions, both
149            to dense and general.
150    
151    2007-01-27  Martin Maechler  <maechler@stat.math.ethz.ch>
152    
153            * src/dsTMatrix.c: has now "l" and "n" methods besides the "d" ones.
154    
155            * R/Ops.R (Arith): <dgCMatrix> o <numeric> now remains sparse
156            where sensible when the <numeric> is of length > 1.
157    
158    2007-01-26  Martin Maechler  <maechler@stat.math.ethz.ch>
159    
160            * R/Matrix.R ([<-): for M[] <- value: fix length
161    
162    2007-01-25  Martin Maechler  <maechler@stat.math.ethz.ch>
163    
164            * R/Auxiliaries.R (n2l_Matrix): new, to be used in
165            * R/ndenseMatrix.R: new coercions n* -> l*
166    
167    2007-01-22  Martin Maechler  <maechler@stat.math.ethz.ch>
168    
169            * R/triangularMatrix.R: new file; simple triu() and tril() methods.
170    
171            * R/Ops.R ("Logic"): and other "Ops", many updates
172    
173    2007-01-18  Martin Maechler  <maechler@stat.math.ethz.ch>
174    
175            * src/Mutils.h (SET_DimNames): new utility
176    
177            * R/Auxiliaries.R (nnzero): improved and now exported via
178    
179            * NAMESPACE: + nnzero(); length() == prod(dim(.)) method for all "Matrix" objects
180    
181    2007-01-17  Martin Maechler  <maechler@stat.math.ethz.ch>
182    
183            * R/diagMatrix.R (!): fix typo.
184    
185    2007-01-16  Martin Maechler  <maechler@stat.math.ethz.ch>
186    
187            * R/Auxiliaries.R (as_Csparse): and quite a few others:
188                    allow to pass class definition --> speedup
189            * R/sparseMatrix.R: apply the above
190    
191            * R/Csparse.R: coercion Csparse* to dense* now preserves shape properties.
192    
193            * src/Mutils.h (mMatrix_as_geMatrix): new, based on
194            * src/Mutils.c (dup_mMatrix_as_geMatrix): new; generalization of
195            old dup_mMatrix_as_dgeMatrix), eliminating a long-standing "FIXME".
196    
197            * src/dense.c (dense_to_Csparse): use new mMatrix_as_geMatrix()
198    
199            * R/denseMatrix.R (.dense2C): based on dense_to_Csparse: name it,
200            and use it for "sparse*" as well, since it's faster than the
201            as_Csparse(.) way.
202    
203    2007-01-15  Martin Maechler  <maechler@stat.math.ethz.ch>
204    
205            * R/Ops.R ("Logic"): more methods, notably an  <lgC> o <lgC> one.
206    
207    2007-01-12  Martin Maechler  <maechler@stat.math.ethz.ch>
208    
209            * R/Tsparse.R (.TM.repl.i.2col): new internal function to be used
210            as method for   M[ ij ] <- v
211            * R/Csparse.R:: go via Tsparse for "M[ij] <- v"
212    
213            * R/Ops.R: "Compare" for (C|R)sparse: need pointer slot for all
214            FALSE answer
215    
216            * R/Csparse.R (replCmat): fix the "all non-zero" case with reordering
217            * tests/indexing.R: test it, and some of the above
218    
219    2007-01-05  Martin Maechler  <maechler@stat.math.ethz.ch>
220    
221            * R/Auxiliaries.R (is_duplicatedT): new utility
222    
223    2007-01-05  Douglas Bates  <bates@stat.wisc.edu>
224    
225            * src/init.c (R_init_Matrix): export cholmod_scale
226    
227    2006-12-30  Martin Maechler  <maechler@stat.math.ethz.ch>
228    
229            * R/zzz.R (tmp): for R >= 2.5.0, extend formals of our
230            base::as.matrix to (x, ...)
231    
232    2006-12-28  Martin Maechler  <maechler@stat.math.ethz.ch>
233    
234            * R/Ops.R ("Arith" etc): move almost all "Ops" methods to new R
235            file; start using "Logic", hence
236    
237            * DESCRIPTION (Depends): R >= 2.4.1 (since we want "Logic")
238            * NAMESPACE: import and export "Logic"
239    
240    2006-12-27  Martin Maechler  <maechler@stat.math.ethz.ch>
241    
242            * src/zpotfr.f and dependencies: use LAPACK 3.1 version
243            only needed previously to R version 2.5.0.
244    
245    2006-12-26  Martin Maechler  <maechler@stat.math.ethz.ch>
246    
247            * DESCRIPTION (Date, Version): 0.9975-8, ready for release
248    
249            * R/Tsparse.R (replTmat): fix subassignment of triangular
250            * R/Csparse.R (replCmat): ditto
251            * tests/indexing.R: more tests, incl the above fix
252    
253    2006-12-23  Martin Maechler  <maechler@stat.math.ethz.ch>
254    
255            * R/Auxiliaries.R (drop0): extend for non CSparse
256            * R/Auxiliaries.R (diagU2N): should work for all sparseMatrix
257    
258            * src/Csparse.c (Csparse_to_Tsparse, Csparse_general_to_symmetric):
259                    use uplo correctly (!); other places: use uplo_P() macro
260    
261            * R/Csparse.R (replCmat): call diagU2N() when needed
262            * R/Tsparse.R (replTmat): ditto
263    
264            * src/dtCMatrix.c (tCMatrix_validate): new
265            * src/dtTMatrix.c (tTMatrix_validate): new, used in
266            * R/AllClass.R: for validity of dtC, dsC, and dtT, dsT.
267    
268            * R/diagMatrix.R (replDiag): to use in [<-
269    
270    2006-12-22  Martin Maechler  <maechler@stat.math.ethz.ch>
271    
272            * R/Auxiliaries.R (as_Csparse2, as_geSimpl): new functions;
273                    also more general diagU2N().
274    
275    2006-12-21  Martin Maechler  <maechler@stat.math.ethz.ch>
276    
277            * R/bind2.R: new file for all cbind2(), rbind() methods moved here
278            from R/<foo>Matrix.R files. Better diagonal & improved sparse methods.
279    
280    2006-12-20  Martin Maechler  <maechler@stat.math.ethz.ch>
281    
282            * tests/bind.R: a few more cases
283            * R/Auxiliaries.R (.M.kind): also work for atomic vectors
284    
285            * R/denseMatrix.R (cbind2/rbind2): moved here (and generalized) from
286            * R/ddenseMatrix.R (cbind2/rbind2)
287            * R/Tsparse.R (replTmat): final(?!) fix for "[<-" ..
288            * tests/indexing.R
289            * tests/indexing.Rout.save: updated
290    
291    2006-12-18  Martin Maechler  <maechler@stat.math.ethz.ch>
292    
293            * R/Tsparse.R (replTmat): fixed a remaining "[<-" bug in
294            * tests/indexing.R
295    
296    2006-12-15  Martin Maechler  <maechler@stat.math.ethz.ch>
297    
298            * R/sparseMatrix.R (prSpMatrix): "." alignment much improved:
299            align with proper position of "0", i.e., right for integers.
300            argument 'align' by default is "fancy".
301    
302    2006-12-14  Martin Maechler  <maechler@stat.math.ethz.ch>
303    
304            * R/sparseMatrix.R: delegate "Compare" to "Csparse.."
305            * R/Csparse.R: and fix "Compare" for more cases.
306            * tests/Class+Meth.R: test some of these (m == m, m != m)
307    
308    2006-12-13  Martin Maechler  <maechler@stat.math.ethz.ch>
309    
310            * R/lsparseMatrix.R: all() and any() methods
311            * R/ldenseMatrix.R:      ditto
312            * NAMESPACE, R/Matrix.R: ditto
313    
314            * man/all-methods.Rd: document them minimally
315    
316            * tests/simple.R: add a few examples for these
317    
318    2006-12-11  Martin Maechler  <maechler@stat.math.ethz.ch>
319    
320            * R/Tsparse.R ([): fix long standing typo in symmetric case
321            * man/dsCMatrix-class.Rd: add example exhibiting the above case
322    
323    2006-12-10  Douglas Bates  <bates@stat.wisc.edu>
324    
325            * src/CHMfactor.c (CHMfactor_to_sparse): change LDL factorization
326            to LL before converting to a sparse matrix. (The LDL form can be
327            converted to a sparse matrix but it is implicitly a unit
328            triangular matrix and a diagonal matrix overwritten on the diagonal.)
329    
330    2006-12-09  Douglas Bates  <bates@stat.wisc.edu>
331    
332            * src/chm_common.c (chm_factor_to_SEXP): allocate and fill the Dim slot.
333    
334    2006-12-08  Douglas Bates  <bates@stat.wisc.edu>
335    
336            * DESCRIPTION (Version): updated -> release 0.9975-7
337            * src/{init.c,chm_common.c}, inst/include/*: export cholmod_analyze_p
338    
339    2006-11-30  Martin Maechler  <maechler@stat.math.ethz.ch>
340    
341            * R/diagMatrix.R (%*%): write a direct [diag o Csparse] method
342    
343    2006-11-29  Douglas Bates  <bates@stat.wisc.edu>
344    
345            * src/dgeMatrix.c (dgeMatrix_solve): Check error code from dgetri.
346            * tests/dg_Matrix.R: Add Barry Rowlingson's test of a matrix that
347            is exactly singular.
348    
349    2006-11-07  Martin Maechler  <maechler@stat.math.ethz.ch>
350    
351            * DESCRIPTION (Date): updated -> release 0.9975-6
352    
353    2006-11-06  Martin Maechler  <maechler@stat.math.ethz.ch>
354    
355            * R/Csparse.R (replCmat): symmetric indexing of symmetric matrix
356            now returns symmetric.
357    
358            * R/zzz.R ("diag<-"): replace "diag<-" in base for R <= 2.4.x
359    
360            * R/Matrix.R (.M.sub.i.2col):  new, for  M[ cbind(i,j) ] indexing.
361            * R/Matrix.R (.M.repl.i.2col): new, for  M[ cbind(i,j) ] <- value
362    
363            * R/Auxiliaries.R (.type.kind): added
364    
365    2006-11-04  Martin Maechler  <maechler@stat.math.ethz.ch>
366    
367            * src/cs.[ch]: updated to CSparse Version 2.0.3 by simply
368            running src/CSparse_install.sh
369    
370            * R/denseMatrix.R: "[": keep symmetric on symmetric indexing.
371    
372    2006-11-03  Martin Maechler  <maechler@stat.math.ethz.ch>
373    
374            * src/dsCMatrix.c (dsCMatrix_Csparse_solve): new
375            * R/dsCMatrix.R (solve): "fully-sparse" using the above.
376    
377            * R/AllClass.R: "pMatrix" now also inherits from "generalMatrix"
378    
379            * tests/Class+Meth.R (tstMatrixClass): now assure
380            the (important in method programming) property :
381    
382                    ###>>  Every "Matrix" is either
383                    ###>>  "general*", "symmetric*", "triangular*" or "diagonal*"
384    
385                    (where "*" stands for "Matrix")
386    
387            * R/Auxiliaries.R (diagU2N): now .Call()s Csparse_diagU2N for <Csparse>
388    
389            * R/dMatrix.R (Compare(<dMatrix>,<dMatrix>): update and
390            * tests/validObj.R: checks for "comparison"
391    
392            * R/sparseMatrix.R ([): improved indexing for sparse;
393                    trying to keep <symmetric>[ n, n] symmmetric
394    
395            * tests/indexing.R: indexing for logical sparse now ok
396    
397    
398    2006-11-02  Martin Maechler  <maechler@stat.math.ethz.ch>
399    
400            * src/Tsparse.c: use xTsparse_validate() , and hence remove
401    
402            * src/{ltC,lsC,lgT}Matrix.[ch]: removed
403    
404    2006-11-02  Martin Maechler  <maechler@stat.math.ethz.ch>
405    
406            * R/AllClass.R (Matrix-class): check length of dimnames in validity.
407    
408            * tests/simple.R: validObject() checking the above.
409    
410            * src/dgCMatrix.c (xCMatrix_validate): new, small and simple,
411            replacing both dgCMatrix_validate and lgCM*.
412    
413            * src/Csparse.c (Csparse_dense_prod, etc): do not lose dimnames;
414            fix dimnames setting in other places.
415            * src/chm_common.c (chm_dense_to_SEXP): now can pass dimnames
416    
417    2006-11-01  Martin Maechler  <maechler@stat.math.ethz.ch>
418    
419            * R/Csparse.R,src/Csparse.c, etc: tcrossprod(<CsparseM>,<CsparseM>)
420    
421            * R/sparseMatrix.R (isSymmetric): drop 'factors' slot for
422            symmetry test, via
423            * R/Auxiliaries.R (.as.dgC.0.factors):
424    
425    2006-11-01  Douglas Bates  <bates@r-project.org>
426    
427            * R/Csparse.R,src/Csparse.c,tests/matprod.R,
428            man/CsparseMatrix-class.Rd: crossprod(<CsparseMatrix>,
429            <CsparseMatrix>) added
430    
431    2006-10-30  Martin Maechler  <maechler@stat.math.ethz.ch>
432    
433            * tests/matprod.R: add a variation of Harri's example
434    
435            * R/dsparseMatrix.R: fix crossprod(<dsparse>, <dge>) to *not*
436            recursive infinitely.
437    
438            * R/dgCMatrix.R: + solve(<sparse>, <sparse>)
439    
440            * tests/indexing.R: add test for the "<" bug fixed 10-27 in R/dMatrix.R
441    
442    2006-10-28  Martin Maechler  <maechler@stat.math.ethz.ch>
443    
444            * tests/Class+Meth.R (tstMatrixClass): more: use non-trivial
445            matrix if possible; test m+m == 2*m; now test dgRMatrix.
446            * R/dgRMatrix.R (.to.dgR): a few more coercions, in order to
447            satisfy the above test.
448    
449    2006-10-27  Martin Maechler  <maechler@stat.math.ethz.ch>
450    
451            * R/Matrix.R (Ops):  <Matrix> o <matrix>  method added
452    
453            * R/dgCMatrix.R: solve(a, b="missing") based on
454            * src/dgCMatrix.c (dgCMatrix_matrix_solve): extend to work with
455            RHS = NULL.
456    
457            * R/diagMatrix.R (diagdiagprod): extend %*% etc to ldiMatrix;
458            add more (needed) [t]crossprod() methods.
459    
460            * man/ddiMatrix-class.Rd: more info, notably on 'diag'
461    
462            * R/Auxiliaries.R (as_CspClass): cleanup
463            (drop0): internal utility for "Csparse_drop(*, 0)"
464            (.bail.out.2): encourage active feedback
465    
466    2006-10-26  Martin Maechler  <maechler@stat.math.ethz.ch>
467    
468            * R/dMatrix.R(Compare): new(), then slots [no validity check]
469    
470            * src/Csparse.c (Csparse_validate): fixed (and more efficient in
471            non-valid or 'sorted' case).
472    
473            * R/dsparseMatrix.R: add "chol" method.
474            * R/ddenseMatrix.R: ditto
475    
476            * R/diagMatrix.R (Ops): group methods for  <diagonal> o <sparse>
477            * NAMESPACE (Ops)
478            * R/diagMatrix.R (diag2T): simple utility used "higher level"
479            coercion; deprecating direct lower level coercions.
480    
481            * R/*.R (seq): use seq_len() and seq_along() where possible.
482    
483    
484    2006-10-23  Martin Maechler  <maechler@stat.math.ethz.ch>
485    
486            * DESCRIPTION (Version): 0.9975-5 ready for release
487    
488    2006-10-20  Douglas Bates  <bates@stat.wisc.edu>
489    
490            * src/init.c (R_init_Matrix): export more cholmod CCallable functions.
491    
492    2006-10-20  Martin Maechler  <maechler@stat.math.ethz.ch>
493    
494            * R/AllClass.R (corMatrix): add 'validity' check;
495                    comment out unused "LDL" class definition
496            * NAMESPACE: mention, but do not export "LDL" class
497            * R/corMatrix.R: new (simple), needed for R-devel with
498            * tests/Class+Meth.R (tstMatrixClass): 1 exception for corMatrix
499              coerce and t() exceptions for all 5 'Mat.MatFact' classes.
500    
501    2006-10-19  Douglas Bates  <bates@stat.wisc.edu>
502    
503            * src/chm_common.h: Add R_cholmod_start to initialize cholmod to
504            use Rprintf and R's error handling.
505    
506    2006-10-17  Martin Maechler  <maechler@stat.math.ethz.ch>
507    
508            * R/diagMatrix.R (%*%): rep(*, each = .) in Matrix %*% diagonal.
509            * tests/matprod.R: add tests for the bug fixed.
510    
511    2006-10-11  Douglas Bates  <bates@stat.wisc.edu>
512    
513            * src/HBMM.[ch]: remove HarwellBoeing format for writing.
514            * src/SOURCES_C.mkf (SOURCES_C): no longer compile iohb.c
515    
516    2006-10-06  Douglas Bates  <bates@stat.wisc.edu>
517    
518            * R/d[gs]CMatrix.R: deprecate the writeHB function.  Use writeMM instead.
519    
520    2006-10-06  Martin Maechler  <maechler@stat.math.ethz.ch>
521    
522            * DESCRIPTION (Version): 0.9975-3
523    
524            * R/diagMatrix.R (bdiag): new function constructing block diagonal
525            (sparse) matrices.
526            * man/bdiag.Rd: docu + examples
527    
528            * R/Csparse.R (replCmat): calling new Csparse_drop() now.
529    
530            * src/Csparse.c (Csparse_general_to_symmetric, Csparse_drop): new functions
531            * R/lsCMatrix.R: three more coercions to lsC (thanks to the above)
532    
533            * R/diagMatrix.R (Diagonal): '[<-' method for diag.matrices such
534            that result is sparse or diagonal (and not dense).
535    
536            * man/Subassign-methods.Rd: fix examples
537    
538            * R/Matrix.R (Matrix):  Matrix(0, *) or Matrix(*, sparse=TRUE)
539            should always return a sparse (and not sometimes a diagonal) matrix.
540    
541  2006-10-05  Martin Maechler  <maechler@stat.math.ethz.ch>  2006-10-05  Martin Maechler  <maechler@stat.math.ethz.ch>
542    
543          * R/Matrix.R ([<-): also for value "Matrix" or "matrix"          * R/Matrix.R ([<-): also for value "Matrix" or "matrix"

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