Hi folks, I have a simple question that I just can't solve.
I'm trying to merge two columns in my data frame.
> sessionInfo()
R version 2.13.0 (2011-04-13)
Platform: i686-pc-linux-gnu (32-bit)
> head(dat)
Year Month Number
2002 Jan 0
2002 Feb 0
2002 March 0
2002 April 1
2002 May 0
2002 June 0
I tried to do the following, but it doesn't work.
dat$Time <- merge(dat[,1], dat[,2])
head(dat)
Help, Abraham.
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