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introduction
2010 Jul 22
2
Changing some values within a variable
Hi
I'm new to R and would like some help with a couple of problems. I
suspect the solutions are quite simple.
I have a data.frame (data) with 40 variables and 5238 observations
created from ~150 text files using read.table.
I would like to change some of the entries within two different columns.
Firstly, in the Group column I have groups A and B, I would like to
select all As and change