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inkhorn/safe.max.r

Created April 29, 2012 01:39
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Max Function that Returns NA when vector is full of NAs
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safe.max.r
safe.max = function(invector) {
na.pct = sum(is.na(invector))/length(invector)
if (na.pct == 1) {
return(NA) }
else {
return(max(invector,na.rm=TRUE))
}
}
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