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datedata
2010 Jan 18
3
Using the output of strsplit
I successfully combined my data frames, and am now on my next hurdle.
I had combined the data and quarter, and used tapply to count the
entries for each unique date/quarter pair.
ar= tapply(ewrgnd$gw, list(ewrgnd$dq), sum) #for each date/quarter
combination sums the gw (which are all 1)
dq=row.names(ar)
spl=strsplit(dq)
But I need to split them back into the separate date and quarter. So I
used