https://github.com/cran/Matrix
Tip revision: c7633495f22d21bd0e6756d6b2013a886015e419 authored by Douglas Bates on 14 November 2005, 00:00:00 UTC
version 0.99-2
version 0.99-2
Tip revision: c763349
Done
- check to see if the .onLoad function to require the methods package
(in the AllClass.R file) is needed
-- no, it is not: "Depends: " in DESCRIPTION suffices.
- Should the uplo and diag slots continue to be stored as character?
An alternative is to use a factor as in the enum values for the
cblas.
-- Leave as character but use care in determining the default cases
-- E.g. Checks for diag slot should check for 'U' or 'u' vs. anything else
- Organization of the source code files - right now they are organized
according to class (e.g. dgeMatrix.R, dgeMatrix.h, dgeMatrix.c). Is
there a better way?
-- This seems ok.
- Fix the calculation of the Dim slot for the crossprod method for
dgCMatrix objects (too tired to do that now).
-- Done
- spelling style: Should "coersion" be "coercion" ?
-- Yes. Watch for this.
- src/Metis/ : one of the two Makefiles needs fixing, as changing
src/Metis/*.c does not lead to recompilation.
--DB - it seems both Makefiles need fixing. I think I have the
src/Metis/Makefile fixed but not src/Makefile
--DB - now have both working, I believe.
- man/Matrix.Rd : has example with dimnames, but we just drop them!
MM thinks dimnames should be supported (but then ...)
-- added 'Dimnames' slot (2005-02-10)
- bCrosstab(): yes, we really do want the diagonal "V:V" crosstabs.
-- explained a bit more in man/bCrosstab.Rd
- Clean up vestigial functions (pdFactor, pdMatrix, matrix<-) from the
nlme package.
- create a class of permutation matrices for use in expand. The
current expand method for the LU factorization is not complete
because it does not provide the permutation.
- tcrossprod() now works: C code now "exported" via init.c
- Fixed: dtpMatrix(... diag = "U") (i.e., unit-diagonal packed triangular)
*does* need 'x' entries for the diagonal but these are never looked at.
-> changed doc -- Lapack also says they are not referenced but assumed 1.
- in lmer.c check all instances of the use of ZtX and XtX and change
them so that having a negative last element of nc means use the
response only (but look for it in the right place).
- Solved:
Currently the show() method fail sometime after coercion:
e.g. 'sy' show()s wrongly, even though it "str()" fine :
(po <- crossprod(Matrix(0:3, 2))) # ok
(ge <- as(po, "dgeMatrix")) # ok
(sy <- as(po, "dsyMatrix")) # BAD
str(sy) # looks fine
or
example(expand) # -> ex$L and ex$U look bad, however
as(ex$L, "dgeMatrix") # `works'
{Of course, we don't need a workaround but must understand
and solve the problem}
- slot "factors" maybe should move up to "Matrix" -- done, 2005-09-28
- group generics: "Arith", also "Compare", "Math" etc;
see ?Math and the examples in ?SetGeneric
- methods for rbind and cbind where they make sense:
R 2.2.0 (and newer) provide cbind2() and rbind2() generics and default
methods [following John Chambers's proposition], and we have implemented
methods for them.
- arithmetic for sparse matrices:
done for <sparseMatrix> o <scalar>
{more needed: see TODO}