[R] intensity map / plot

Martin Batholdy batholdy at googlemail.com
Mon Oct 3 20:47:42 CEST 2011


thanks!


On 03.10.2011, at 19:11, Uwe Ligges wrote:

> See ?image
> 
> Uwe Ligges
> 
> 
> On 03.10.2011 19:05, Martin Batholdy wrote:
>> Dear R-list,
>> 
>> 
>> I would like to generate an intensity map based on a x * y matrix.
>> 
>> Each point in the matrix should get plotted at the coordinate: x = column / y = row with
>> a color-intensity (for example gray-value) based on the actual value of this point.
>> 
>> Is there a convenient package / function for this kind of plot?
>> 
>> 
>> 
>> example data:
>> x<- matrix(rnorm(100*100, 0, 2), 100, 100)
>> 
>> 
>> thanks!
>> 
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