Hi All. Imagine you have a large block diagonal matrix. I'd like to replace the zeros in this matrix with small random (runif) numbers. Any ideas for a simple and efficient way to do this? Best regards, Rick DeShon
replace zeros in a block diagonal matrix with small random values?
2 messages · Rick DeShon, Dimitris Rizopoulos
say 'mat' is your matrix, then you could try something like (untested): ind <- mat == 0 mat[ind] <- runif(sum(ind)) I hope it helps. Best, Dimitris
Rick DeShon wrote:
Hi All. Imagine you have a large block diagonal matrix. I'd like to replace the zeros in this matrix with small random (runif) numbers. Any ideas for a simple and efficient way to do this? Best regards, Rick DeShon
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