Don't you want read.matrix.csr not read.matrix?
url: www.econ.uiuc.edu/~roger Roger Koenker email [EMAIL PROTECTED] Department of Economics vox: 217-333-4558 University of Illinois fax: 217-244-6678 Champaign, IL 61820
On Jan 28, 2005, at 9:22 AM, Jeszenszky Peter wrote:
Hello,
I would like to read and write sparse matrices using the functions write.matrix.csr() and read.matrix.csr() of the package e1071. Writing is OK but reading back the matrix fails:
x <- rnorm(100) m <- matrix(x, 10) m[m < 0.5] <- 0 m.csr <- as.matrix.csr(m) write.matrix.csr(m, "sparse.dat") read.matrix("sparse.dat")
Error in initialize(value, ...) : Can't use object of class "integer" in new(): Class "matrix.csr" does not extend that class
Is something wrong with the code above or it must be considered as a bug?
Best regards,
Peter
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