Displaying 1 result from an estimated 1 matches for "sse_calc".
2013 Oct 17
0
Singular Matrix 'a' in solve
...;- yfm[,1:(tt-1)]
out <- matrix(t(yfm),nrow=nrow(yfm)*ncol(yfm),ncol=1)
out
}
*Then before the computation, something is being setup*
x <- cbind(lpop, linv, lgov, llife, cf)
… (skip as I think is unrelated with the problem encounter)
*And, in the early stage of computation:*
sse_calc <- function(y,x){
e <- y-x%*%qr.solve(x,y)
out <- t(e)%*%e
out
}
…
*It comes out with*
Error in qr.solve(x, y) : singular matrix 'a' in solve
I thought only square matrix would have this kind of problem. Would qr()
help in this case? Or is the...