[R] colour palette for positive/negative range

[Frank Schwach]

brilliant, thanks guys! diverge_hsv is perfect. 
Frank


On Fri, 2011-03-18 at 16:47 +0100, Achim Zeileis wrote:
> On Fri, 18 Mar 2011, Frank Schwach wrote:
> 
> > Hi,
> >
> > I'm plotting a heatmap with values ranging from -10 to +10 and I would
> > like the negative values to show up in shades of blue and the positive
> > ones in shadea of red. Basically, I want exactly what the RColorBrewer
> > palette RdBu does but with more of a gradual change (the RdBu can only
> > give me 11 distinct colours). Any suggestions?
> 
> See the function diverge_hcl() in the package "colorspace" which provides 
> a wide variety of HCL-based color palettes. These are similar in spirit to 
> the ColorBrewer palettes but were designed to provide more fine control. 
> See the examples and the associated CSDA paper for more details.
> 
> Best,
> Z
> 
> > Thanks!
> >
> > Frank
> >
> >
> >
> >
> > -- 
> > The Wellcome Trust Sanger Institute is operated by Genome Research
> > Limited, a charity registered in England with number 1021457 and a
> > company registered in England with number 2742969, whose registered
> > office is 215 Euston Road, London, NW1 2BE.
> >
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >



-- 
 The Wellcome Trust Sanger Institute is operated by Genome Research 
 Limited, a charity registered in England with number 1021457 and a 
 company registered in England with number 2742969, whose registered 
 office is 215 Euston Road, London, NW1 2BE.