From: <mtb954_at_gmail.com>

Date: Tue 21 Feb 2006 - 11:41:45 EST

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 21 11:45:18 2006

Date: Tue 21 Feb 2006 - 11:41:45 EST

I have a dataframe called "data" with 5 records (in rows) each of
which has been scored on each of many variables (in columns).

I can create a new variable called var6 with the value 15 for each record with this code:

> var6=var1+var2+var3+var4+var5

but this is tedious for my real dataset with dozens of variables. I would rather use a wildcard to add up all the variables that begin with "Var" like this pseudocode:

> Var6=sum(var*)

Any suggestions for implementing this in R? Thanks! Mark

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 21 11:45:18 2006

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