[R] frequency

[Uwe Ligges]

gfaieta at katamail.com wrote:
> 
> I'm quite new with R so sorry if I asked something very easy or complicated.
> I have a data frame with (for instance) 4 variables (4 columns) and 100 records. I would like to have a 'summary' table for each variable that shows me the following:
> 
> variable 1      Freq.    %     % cumulative
> 
> class 1           10        10%      10%
> class 2           20        20%      30%
> class 3           70        70%     100%


Assume you data.frame is called DAT. With

  lapply(DAT, table)

you can apply the function table() on each variable of the data.frame.

Uwe Ligges
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