[R] Transform counts into presence/absence

[Johannes Radinger]

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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