If you mean us to run the code you supplied:
1. There are two generic backsolve() functions, one in the gobal
environment and one in SparseM:
> showMethods(backsolve)
Function: backsolve (package .GlobalEnv)
r="ANY"
r="matrix"
(inherited from: r="ANY")
> showMethods(SparseM::backsolve)
Fu
I'm hoping that someone with deeper insight into S4 than I,
that is to say virtually everyone reading this list, could help
resolve the following problem in SparseM. We have
setGeneric("backsolve",
function(r, x, k = NULL, upper.tri = NULL, transpose = NULL,
twice = TRUE, ...)
