Hi,
I have a dataframe that has a column of vectors that I need to extract off
the character string before the first '.' character and put it into a
separate column. I thought I could use 'strsplit' for it within
'transform', but I can't seem to get the right invocation. Here is a sample
dataframe that has what I have, what I want, and what I get. Can someone
tell me how to get what is in the 'want' column from the 'have' column
programatically?
tia,
Matt
df <- data.frame(have=c("a.b.c", "d.e.f", "g.h.i"), want=c("a","d","g"))
df.xform <- transform(df, get=strsplit(as.character(have), split=".",
fixed=TRUE)[[1]][1])
df.xform
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