[R] Barplot and colors for legend

Werner Wernersen pensterfuzzer at yahoo.de
Mon Apr 18 18:11:09 CEST 2005


>>>Hi all!
>>>
>>>One quick question: How do I get the standard
colors
>>>used by barplot? I have 
>>>some stacked bars and would like to add a
horizontal
>>>legend via legend() but I 
>>>don't know how to find the colors for the fills of
the
>>>legend points.
>>>
>>>Thanks!
>>>   Werner
>>
>>
>>Type
>>   barplot.default
>>and read the code:
>>
>>for a vector: "grey",
>>for a matrix: grey(seq(0.3^2.2, 0.9^2.2, length =
>>nrow(height))^(1/2.2))
> 
> 
> This must be an old version of R ;-)
> 
> In R 2.1.0, there is a function gray.colors() which
creates a vector of
> gamma-corrected gray colors (and is used in
barplot.default).
> 
> Best,
> Z

Thanks for the quick help!

I am using R 2.0.1 under Windows 2000 and Uwes
suggestion helps.
And another thanks: Finally I realized that I don't
have the newest R version!

Thanks again,
   Werner




More information about the R-help mailing list