[R] Histograms per coding variable

Michael A. Miller mmiller3 at iupui.edu
Wed Dec 5 15:17:59 CET 2001

>>>>> "Smit," == Smit, A, Albertus, Dr <ajsmit at botzoo.uct.ac.za> writes:

    > I need to do a series of histograms for each of the codes,
    > levels or factors in 'site'.  


    > Is there are more elegant way to do this without having to
    > use the fr.wt[1:82] bit? 

One way you can do it is to use tapply, as in
 > tapply( ft.wt, site, hist )

An alternative that is even better, IMHO, is to use the lattice
package, which is very slick :-)

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