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[matrix] Diff of /pkg/Done
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Diff of /pkg/Done

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revision 881, Tue Aug 30 14:37:09 2005 UTC revision 935, Tue Sep 20 10:14:57 2005 UTC
# Line 50  Line 50 
50  - in lmer.c check all instances of the use of ZtX and XtX and change  - in lmer.c check all instances of the use of ZtX and XtX and change
51    them so that having a negative last element of nc means use the    them so that having a negative last element of nc means use the
52    response only (but look for it in the right place).    response only (but look for it in the right place).
53    
54    - Solved:
55    
56       Currently the show() method fail sometime after coercion:
57       e.g. 'sy' show()s wrongly, even though it "str()" fine :
58    
59          (po <- crossprod(Matrix(0:3, 2))) # ok
60          (ge <- as(po, "dgeMatrix")) # ok
61          (sy <- as(po, "dsyMatrix")) # BAD
62          str(sy) # looks fine
63    
64      or
65          example(expand) # -> ex$L and ex$U look bad, however
66          as(ex$L, "dgeMatrix") # `works'
67    
68      {Of course, we don't need a workaround but must understand
69       and solve the problem}
70    
71    
72    - arithmetic for sparse matrices:
73         done for    <sparseMatrix>  o  <scalar>
74      {more needed: see TODO}
75    

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