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

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revision 1322, Mon Jul 17 18:31:12 2006 UTC revision 1326, Wed Jul 19 14:58:26 2006 UTC
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1  -----  -----
2    Suitably adjust classes of matrices after subscripting.  Currently
3    head(Hilbert(9))
4    and the equivalent expression
5    Hilbert(9)[1:4,]
6    throws an error because the result is not symmetric, but the result of
7    subscripting a symmetric matrix does not need to be symmetric.
8    Perhaps we should try to propagate the class to the subscripted matrix
9    but, if that fails its test, fall back on a general matrix class.
10    That is, the fallback class for dsyMatrix, etc. is dgeMatrix; the
11    fallback class for dsCMatrix is dgCMatrix, etc.
12    -----
13  Modify the one-argument form of the anova method for lmer objects (yet  Modify the one-argument form of the anova method for lmer objects (yet
14    again) to calculate the F ratios.  It is the df, not the ratio that    again) to calculate the F ratios.  It is the df, not the ratio that
15    is controversial.    is controversial.

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