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marcar
2008 Dec 02
4
Bug in "transform"?
Dear useRs,
Here is a weird behavior of transform function:
mtcars1<-matcars
transform(mtcars1,t1=3,t2=4)
Error in data.frame(`_data`, e[!matched]) :
arguments imply differing number of rows: 32, 1
instead, this works:
mtcars1$t1<-0
transform(mtcars1,t1=3,t2=4)
also works if applied in turn:
transform(mtcars1,t1=3)
transform(mtcars1,t2=4)
I often...