search for: indataframe

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2009 Nov 23
1
using contents of one column to direct addition of new rows in dataframe
Hello, R gurus. I've been trying to get R to do some data manipulation for me, and so far have been stumped in figuring out any elegant way to do so. Searches through the R-help archive haven't helped, so now I'm trying plan B. Suppose I have a dataframe that summarizes events that took place between some interval of time in days, "Time." I want to expand the dataframe to