[R] melt on OSX ignores na.rm=T

Titus von der Malsburg malsburg at gmail.com
Sun Feb 7 01:40:06 CET 2010

Ok, I studied the source code of melt.data.frame.  With na.rm=T melt
operates normally except that it deletes rows from the molten
data.frame that have NAs in the value column.  NAs in the id.vars are
not touched.  This could be clearer in the documentation especially as
it seems that earlier versions of reshape behaved differently.



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