Rau, Roland wrote:
Dear R-Helpers,
I have a matrix where the first column is known. The second column is the result of multiplying this first column with a constant "const". The third column is the result of multiplying the second column with "const"..... So far, I did it like this (as a simplified example):
nr.of.columns <- 4
myconstant <- 27.5
mymatrix <- matrix(numeric(0), nrow=5, ncol=nr.of.columns)
mymatrix[,1] <- 1:5
for (i in 2:nr.of.columns) { mymatrix[,i] <- myconstant * mymatrix[,i-1] }
nr.of.columns <- 4 myconstant <- 27.5 mycolumn <- 1:5 outer(mycolumn, myconstant^(0:(nr.of.columns-1)))
Uwe Ligges
Can anyone give me some advice whether it is possible to avoid this loop (and if yes: how)?
Any suggestions are welcome!
Thanks, Roland
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