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1999 Mar 02
1
zero-offset matrices
Has anyone written subscripting methods for matrices which are indexed
from zero? i.e. functions such as "[.zoffset" and "[<-.zoffset" which
would allow, given an appropriate function "zmatrix"
"zmatrix" <- function(...)
{
robj <- matrix(...)
class(robj) <- "zoffset"
robj
}
fred <- zmatrix(1:20, 4, 5)
fred[0, 4] # would be 17