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[matrix] Diff of /pkg/Matrix/TODO
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Diff of /pkg/Matrix/TODO

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revision 2711, Sat Sep 17 09:34:27 2011 UTC revision 2712, Sat Sep 17 09:56:13 2011 UTC
# Line 1  Line 1 
1  - R/zzz.R : Remove the  '%*%'  base assignInNamespace hack --  ##-*- mode: org -*-
2            as soon as R's  '%*%'  is properly generic  // or itself calls the generic kronecker()  
3    - Fix the bug that our solve("dsCMatrix") uses CHOLMOD's  LDL'  but that
4      typically (but not at all always!) fails when the matrix is *not* pos.def !!
5      ~/R/MM/Pkg-ex/Matrix/solve-Gorjanc-bug.R
6      ==> must fall back to LU (e.g.) in that case.
7    
8    - Look at Paul Bailey's problem -- CHOLMOD error (even seg.fault for him)
9      --> ~/R/MM/Pkg-ex/Matrix/sparseOrderedLogit.R
10    
11    - BunchKaufman()'s result is not really useful yet {but it is used on C
12      level e.g. for solve(<dsyMatrix>).   Should define  expand() method or
13      similar, see man/BunchKaufman-methods.Rd and R/dsyMatrix.R (at end).
14    
15    - R/zzz.R : Remove the  '%x%'  base assignInNamespace hack --
16              as soon as R's  '%x%'  is properly generic  // or itself calls the generic kronecker()
17    
18    ----------------------------------------
19    
20    - Investigate the "band changing (and getting) ideas  'band<-' etc,
21      as per posts on R-devel ......(which ones ????)_____________________ <<<
22    
23  - Check for DimNames propagation in coercion and other operations.  - Check for DimNames propagation in coercion and other operations.
24    

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