[Rd] e1071: using svm with sparse matrices (PR#8527)

[julien.gagneur@embl.de]

Full_Name: Julien Gagneur
Version: 2.2.1
OS: Linux (Suse 9.3)
Submission from: (NULL) (194.94.44.4)


Using the SparseM library (SparseM_0.66)
and the e1071 library (e1071_1.5-12)


I fail using svm method with a sparse matrix. Here is a sample example.

I experienced the same problem under Windows.



> library(SparseM)
[1] "SparseM library loaded"
> library("e1071")
Loading required package: class
> data(iris)
> attach(iris)
> M=as.matrix(iris[,1:4])
> Msparse=as.matrix.csr(M)
> Species=iris[,5]
> mod=svm(Msparse,Species)
Error in svm.default(Msparse, Species) : object "nac" not found