search for: tsparse

.... . . . > [3,] . . . . . > [4,] . . . . . > [5,] . . . . . The reason for the above behavior has been a) efficiency. All the subassignment ( `[<-` ) methods for "RsparseMatrix" objects (of which "dsRMatrix" is a special case) are implemented via TsparseMatrix. b) because of the general attitude that Csparse (and Tsparse to some extent) are well supported in Matrix, and e.g. further operations on Rsparse matrices would *again* go via T* or C* sparse ones, I had decided to keep things Tsparse. [...] > Trying with explicit coercion...

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

? "form" -> "from". Diff against latest SVN: Index: sparse.model.matrix.Rd =================================================================== --- sparse.model.matrix.Rd??? (revision 3336) +++ sparse.model.matrix.Rd??? (working copy) @@ -4,7 +4,7 @@ ?\alias{fac2sparse} ?\alias{fac2Sparse} ?\description{Construct a sparse model or \dQuote{design} matrix, -? form a formula

Hi all, I am wondering if this is a bug in the Matrix package or if it something that I am just getting wrong...here is an example: > m = matrix(0,4,4) > dimnames(m) = list(letters[1:4], letters[5:8]) > r = c("a","b","a","d") > m[r,2] = 1 > m e f g h a 0 1 0 0 b 0 1 0 0 c 0 0 0 0 d 0 1 0 0 > M = Matrix(0,4,4) > dimnames(M) =

...iler (8.0.2) for AMD64 on a SLES9 system. When I try to install "Matrix" everything is fine until the last step. make[1]: Leaving directory `/tmp/R.INSTALL.TW3399/Matrix/src/AMD' pgCC -L/usr/lib64 -L/usr/X11R6/lib64 -pgf90libs -o Matrix.so CHMfactor.o Csparse.o TMatrix_as.o Tsparse.o init.o Mutils.o chm_common.o cs.o cs_utils.o dense.o dgCMatrix.o dgTMatrix.o dgeMatrix.o dpoMatrix.o dppMatrix.o dsCMatrix.o dsyMatrix.o dspMatrix.o dtCMatrix.o dtTMatrix.o dtrMatrix.o dtpMatrix.o factorizations.o ldense.o lgCMatrix.o sparseQR.o SPQR.a CHOLMOD.a COLAMD.a AMD.a -L/usr/local/a...

...s solstudio12.2. Attached is the configure script. I then tried to install a recommended package called Matrix. The compilation failed with the following messages, ....... CC -library=stlport4 -G -L/opt/csw/lib/sparcv9 -L/opt/solstudio12.2/prod/lib/v9 -o Matrix.so CHMfactor.o Csparse.o TMatrix_as.o Tsparse.o init.o Mutils.o chm_common.o cs.o cs_utils.o dense.o dgCMatrix.o dgTMatrix.o dgeMatrix.o dpoMatrix.o dppMatrix.o dsCMatrix.o dsyMatrix.o dspMatrix.o dtCMatrix.o dtTMatrix.o dtrMatrix.o dtpMatrix.o factorizations.o ldense.o lgCMatrix.o sparseQR.o abIndex.o CHOLMOD.a COLAMD.a AMD.a -L/apps/sparcv9/...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I'm doing some basic operations on large sparse matrices, for example getting a row. it takes close to 30 seconds on a 3Ghz machine, and shots the memory usage up to the sky. I suspect there are dense intermediary steps (which, if true would defeat the purpose of trying to use sparse representaitons). As much as I try understanding the

...s, with the exception of package Matrix where compilation crashes with the following message. The error occurs during building of the recommended packages and also if Matrix is compiled separately: [...] CC -G -lCstd -L/opt/sun/sunstudio12/lib/amd64 -o Matrix.so CHMfactor.o Csparse.o TMatrix_as.o Tsparse.o init.o Mutils.o chm_common.o cs.o cs_utils.o dense.o dgCMatrix.o dgTMatrix.o dgeMatrix.o dpoMatrix.o dppMatrix.o dsCMatrix.o dsyMatrix.o dspMatrix.o dtCMatrix.o dtTMatrix.o dtrMatrix.o dtpMatrix.o factorizations.o ldense.o lgCMatrix.o sparseQR.o CHOLMOD.a COLAMD.a AMD.a -L/home/user/R/R-devel/lib...

...lude -I/usr/include -I/usr/sfw/include -KPIC -O -I/opt/SUNWspro/prod/include -c TMatrix_as.c -o TMatrix_as.o cc -m64 -I/home/choid/bin/R281/lib/R/include -I./UFconfig -I/usr/local/include -I/opt/SUNWspro/prod/include -I/usr/include -I/usr/sfw/include -KPIC -O -I/opt/SUNWspro/prod/include -c Tsparse.c -o Tsparse.o cc -m64 -I/home/choid/bin/R281/lib/R/include -I./UFconfig -I/usr/local/include -I/opt/SUNWspro/prod/include -I/usr/include -I/usr/sfw/include -KPIC -O -I/opt/SUNWspro/prod/include -c init.c -o init.o cc -m64 -I/home/choid/bin/R281/lib/R/include -I./UFconfig -I/usr/local/include -...

..., there will be another improvement there, > deprecating 'giveCsparse = TRUE' > and replacing it by 'repr = "C"' > > the latter allowing all three kind of sparseMatrix formats > ("C", "R", "T") instead of just Csparse* and Tsparse*. ????? How I can learn more about this, including (a) 'repr = ("C", "R", "T")', (b) how it creeps into my code, and (c) when I can expect to see it? ????? I'm running R 4.0.2, and "?sparse.model.matrix" on a fresh session generates "...

Hello, I am working with a sparse matrix that is approx. 13,900 by 14,100. My goal is to select a row out of the matrix and create a new matrix with that row repeated 13,900 times without having to do any looping. Example: Starting Matrix: exampleMatrix 3 x 4 sparse Matrix of class "dgCMatrix" [1,] 1 . . . [2,] . 1 . 0.5 [3,] . . 1 .. New Matrix:.. newExampleMatrix 3 x 4 sparse

The bulk is on my forums - the final post for today is: Results to date: A. It looks like I am going to need a newer compiler for C - xlc/xlC V11 apparently does not understand this code: "/data/prj/cran/R-3.2.3/src/main/memory.c", line 2149.31: 1506-046 (S) Syntax error. I will have to check if R-devel has different code before asking for assistence. +2139 #ifdef