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2011 Jun 09
1
Item analysis
Hi all,
For several reasons I have no used CARN R in months....I have an idea and I
want to retry to learn CRAN R.
I know I need to formulate more "intelligent" questions but I will expose
and if someone can help me I would be very gratefull I promise to try to
learn again....
The question I have a data file like this:
Date, Time, Tip
13/11/2008,23:16:00,432
13/01/2009,23:17:00,633