Displaying 1 result from an estimated 1 matches for "colindices".
2013 Feb 05
1
impossible to invert a spam-object, but possible when it's a matrix-object
...,52,55,57,59))
cc <- as.integer(c(1,2,3,4,7,1,2,3,5,8,10,1,2,3,6,9,11,1,
4,5,6,7,10,2,4,5,6,8,3,4,5,6,9,12,1,4,
7,8,9,11,2,5,7,8,9,12,3,6,7,8,9,2,4,10,3,7,6,8))
di <- as.integer(c(12,12))
A <- new("spam",
entries=ent,
colindices=cc,
rowpointers=rr,
dimension=di)
## calculate the determinant
det(A)
## computes the inverse
solve(A)
## transform A in a plain matrix
A1 <- matrix(c(A), di)
## calculate the determinant
det(A1)
## computes the inverse
solve(A1)
> version
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