[BioC] Heatmap color Key

[Gregory Warnes]

Hi All,

It should be sufficient to modify the code that creats the 'lmat'  
matrix that is used to ses the layout.  Everything else can be left  
as it is now.

-Greg
Author of gplots::heatmap.2





On Mar 31, 2008, at 12:37PM , James W. MacDonald wrote:
> Hi Khalid,
>
> s.khalid at qmul.ac.uk wrote:
>> Dear all,
>>
>> I have recently started using R to draw heatmaps and have worked with
>> several heatmaps in different packages(stats,gplots,heatplus etc).
>>
>> heatmap.2 using Heatplus does exactly what I am after, except for one
>> thing.  I would like to move the location of the color key from the
>> top left to the bottom of the heatmap, and also alter its size to the
>> length of the heatmap.
>>
>> Whilst I am able to alter various labels of the colorkey (i.e. x  
>> and y
>> axis), I am unable to successfully move its position and resize it
>> into a rectangle.
>
> While doable, this will require a bit of hacking. The heatmap.2()
> function uses layout() to set up the plotting device so you would have
> to change the parameters passed to that function in order to change  
> the
> plotting regions, then change the plotting order so things get plotted
> in the correct region.
>
> If I were to attempt such a thing, I would likely just create another
> function by cutting and pasting the relevant portions of heatmap.2()
> together in the required order, and adjusting the input to layout() to
> make the upper left plotting region large enough for the heatmap  
> image,
> and the bottom right region smaller.
>
> See ?layout.
>
> Best,
>
> Jim
>
>
>>
>> Thank you to anyone who can help me
>>
>> Khalid
>>
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>
> -- 
> James W. MacDonald, M.S.
> Biostatistician
> Affymetrix and cDNA Microarray Core
> University of Michigan Cancer Center
> 1500 E. Medical Center Drive
> 7410 CCGC
> Ann Arbor MI 48109
> 734-647-5623
>
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