I have a dataset which contains some missing values, and I need to replace
them with zeros. I tried using the following:
x <- matrix(data=rep(c(1,2,3,NA),6), ncol=6, nrow=6)
y <- matrix(data=0, ncol=ncol(x), nrow=nrow(x))
for(i in 1:nrow(x)) {
for(j in 1:ncol(x)) {
y[i,j] <- ifelse(x[i,j]==NA, 0, x[i,j])
}}
But y returns an NA matrix.
I'd appreciate any help.
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