Displaying 2 results from an estimated 2 matches for "generalmatrix".
2016 Apr 20
0
Matrix: How create a _row-oriented_ sparse Matrix (=dgRMatrix)?
...> no method or default for coercing "dgTMatrix" to "dgRMatrix"
The general philosophy in 'Matrix' with all the class
hierarchies and the many specific classes has been to allow and
foster coercing to abstract super classes,
i.e, to "dMatrix" or "generalMatrix", "triangularMatrix", or
then "denseMatrix", "sparseMatrix", "CsparseMatrix" or
"RsparseMatrix", etc
So in the above as(*, "RsparseMatrix") should work always.
As a summary, in other words, for what you want,
as(sparseMatri...
2016 Apr 19
2
Matrix: How create a _row-oriented_ sparse Matrix (=dgRMatrix)?
Using the Matrix package, how can I create a row-oriented sparse
Matrix from scratch populated with some data? By default a
column-oriented one is created and I'm aware of the note that the
package is optimized for column-oriented ones, but I'm only interested
in using it for holding my sparse row-oriented data and doing basic
subsetting by rows (even using drop=FALSE).
Here is what I