[R] frequency table

Jonathan Baron baron at cattell.psych.upenn.edu
Sun Nov 10 13:26:06 CET 2002


On 11/10/02 11:55, Milan Toth wrote:
>is anybody whoo know something about making frequency tables in R. i'm 
>just beginner in R. thank you.

table()

Learn how to use the help system too.  When that fails, use my
help page.

A neat trick with table() is that you can use it to tabulate
columns of a matrix (for example) with:

apply(mymatrix,2,table)

Another neat trick is that you can plot it with plot() or
mosaicplot().

-- 
Jonathan Baron, Professor of Psychology, University of Pennsylvania
R page:               http://finzi.psych.upenn.edu/

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