[R] data frame usage

[Julian Burgos]

Check out the tapply function.
?tapply

Julian

Bernd Jagla wrote:
> Hi, 
> I am new to R and couldn't find any information on how to handle my table
> data that I just read in the way I want to use it..
> 
> I read in a table from a file:
> x <- read.delim("filenam", header=TRUE)
> 
> one column (x$label) hold the class labels. Another holds some values
> (x$val).
> I want to calculate summary statistics for different classes.
> 
> How would I do this?
> 
> Thanks,
> 
> Bernd
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.