R help - May 2010 - about heatmap

Hi all:
As to the "heatmap" function, the default style is "red and
yellow",and red refers to low level and yellow refers to high level.
How can I change the style to the contrary: red refers to high level and yellow
refers to low level?

Thanks a lot!
My best
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Hi,

Take a look at the heatmap.2 function in the library gplots, and the
brewer.pal in the library RColorBrewer. With this combination you have a far
bigger flexibility on the colors and the output, plus you get a colorcoded
legend. There used to be a bug in that function distorting the legend when
breaks with unequal intervals were used, but I've adapted the function
myself to work also in that case. If you need it, feel free to contact me.

Cheers
Joris

On Mon, May 31, 2010 at 9:54 AM, 孟欣 <lm_mengxin@163.com> wrote:
> Hi all:
> As to the "heatmap" function, the default style is "red and
yellow",and red
> refers to low level and yellow refers to high level.
> How can I change the style to the contrary: red refers to high level and
> yellow refers to low level?
>
> Thanks a lot!
> My best
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@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.
>


-- 
Joris Meys
Statistical Consultant

Ghent University
Faculty of Bioscience Engineering
Department of Applied mathematics, biometrics and process control

Coupure Links 653
B-9000 Gent

tel : +32 9 264 59 87
Joris.Meys@Ugent.be
-------------------------------
Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php

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Hi there,

Take a look at
http://www2.warwick.ac.uk/fac/sci/moac/currentstudents/peter_cock/r/heatmap/

HTH,
Jorge


On Mon, May 31, 2010 at 3:54 AM, 孟欣 <> wrote:
> Hi all:
> As to the "heatmap" function, the default style is "red and
yellow",and red
> refers to low level and yellow refers to high level.
> How can I change the style to the contrary: red refers to high level and
> yellow refers to low level?
>
> Thanks a lot!
> My best
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@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.
>
	[[alternative HTML version deleted]]