>>>>> "GH" == Giles Hooker <gj...@cornell.edu>
>>>>> on Thu, 27 Aug 2009 21:12:48 -0400 writes:
GH> I am developing a new R package and am now checking it for submission to
GH> CRAN.
GH> The some functions in the package make use of the sparse matrix routines
GH> in the package 'Matrix'.
GH> When these are loaded in R, they create no problems.
GH> However, when running R CMD check, I run into the following error in
GH> executing the examples in a .rd file:
>> DD = Matrix(diag(1,200),sparse=TRUE)
>> tDD = t(DD)
{{well, the transpose of a diagonal matrix, really ??}}
Just a remark: For larger values of n=200,
it would be more efficient (and elegant) to directly use
DD <- Diagonal(200)
See ?Diagonal, and e.g.,
> Diagonal(4)
4 x 4 diagonal matrix of class "ddiMatrix"
[,1] [,2] [,3] [,4]
[1,] 1 . . .
[2,] . 1 . .
[3,] . . 1 .
[4,] . . . 1
> .symDiagonal(4)
4 x 4 sparse Matrix of class "dsCMatrix"
[1,] 1 . . .
[2,] . 1 . .
[3,] . . 1 .
[4,] . . . 1
>>
>> fres = FitMatchOpt(coefs=coefs,which=2,pars=pars,proc)
GH> Error in t.default(DD) : argument is not a matrix
GH> Calls: FitMatchOpt -> t -> t.default
GH> Execution halted
GH> The first two lines of the function FitMatchOpt are
GH> DD = Matrix(diag(1,200),sparse=TRUE)
GH> tDD = t(DD)
GH> These were fine when given in the examples section of the .rd file
GH> directly. However, when defined within a function in the package, the
GH> lines cause an error.
How does your package "get Matrix"?
I'm sure there's some problem in requiring Matrix, in either
your DESCRIPTION or your NAMESPACE (or a .First.library or ...)
Your DESCRIPTION should have
Depends: ...., Matrix
Imports: ...., Matrix
and your NAMESPACE
either
importFrom("Matrix", .....)# the things you need
or (if you use many things from the Matrix package, and/or
in some way just *extend* it ...)
import("Matrix")
Does that help?
Best regards,
Martin Maechler
GH> Sparse matrices improve the computational efficiency of the routines I
GH> am developing and I would like to use them. But I'm not sure how I can
GH> get around this error.
GH> Many thanks,
GH> Giles Hooker
GH> ______________________________________________
GH> R-devel@r-project.org mailing list
GH> https://stat.ethz.ch/mailman/listinfo/r-devel
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