Missing at random
On Jan 30, 2011, at 10:01 PM, assaedi76 assaedi76 wrote:
R users: Thanks in advance How to generate missing at random (MAR)?
> missidx <- sample(1:nrow(dfrm), nrow(dfrm)*frac) > is.na(dfrm$measure) <- 1:nrow(dfrm) %in% missidx
assaedi76 at yahoo.com Thanks [[alternative HTML version deleted]]
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