Followup: Re: [R] Interaction Plots in R
I think it would be extremely useful to have code for interaction
plots. This is something I missed when working with linear models on
R. But why not add it to the R-base?
Faheem.
On Wed, 24 May 2000, Ko-Kang Wang wrote:
Ah yes. I've just tested the code and it proved to be extremely good. Thank you. I actually think it will be a good idea to put up a package (library), with examples and help files etc...I don't know how the others on this list think about this idea, but I would certainly like to see such a package in CRAN. If you don't mind, I could put up a package for you and e-mailed it to you. Thanks again. Ko-Kang Kaspar Pflugshaupt wrote:
Ko-Kang Wang wrote: Is there a function to do interaction plots in R? I know in Splus I can simply use interaction.plot()
Thanks. I don't think there's such a function, so I wrote one some time ago. It takes two factors f1, f2 and a response variable data.
Well, I've been using that function a lot lately and so I've improved it considerably, up to the point of being useful. Having a bit of a bad conscience for my last version (it was rather ugly), I'd like to post a better one. It uses colours, draws a legend (which can be reordered) and does a better job with axis labels. What's more, I've since discovered the "matlines" function :-) .
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