Hello, Try
x <- c(1,0,21,2,0,0,234,2,0) as.integer(x != 0) Hope this helps, Rui Barradas Em 31-05-2012 12:13, Johannes Radinger escreveu:
Hi, I am looking for a very easy way to transform a column in a dataframe from counts (eg. c(1,0,21,2,0,0,234,2,0)) into a binary form to get presence/absence values e.g. c(1,0,1,1,0,0,1,1,0). Is there a simple built-in function? or do I have do to it with a replaceement funciton using IF x> 0 THEN 1 etc.? /johannes
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