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2016 Apr 20
0
Matrix: How create a _row-oriented_ sparse Matrix (=dgRMatrix)?
>>>>> Henrik Bengtsson <henrik.bengtsson at gmail.com>
>>>>> on Tue, 19 Apr 2016 14:04:11 -0700 writes:
> 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
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