[R] Heatmap.2 - eliminate cluster and dendrogram

[Matthias Kohl]

Dear Peter,

the call works for me; e.g.

x <- matrix(rnorm(100), ncol = 4)
heatmap.2(x, dendrogram="none", Colv = FALSE, Rowv = FALSE)

There seems to be something wrong with your matrix z ...

Best,
Matthias

Peter Scacheri wrote:
> Thanks Matthias,
>
> I tried that, but received the following error message:
>
> Error in image.default(1:nc, 1:nr, x, xlim = 0.5 + c(0, nc), ylim = 
> 0.5 +  :
>         dimensions of z are not length(x)(+1) times length(y)(+1)
>
>
> -Peter
>
> At 10:18 AM +0200 5/15/08, Matthias Kohl wrote:
>> Dear Peter,
>>
>> heatmap.2(z, dendrogram = "none", Rowv = FALSE, Colv = FALSE)
>>
>> should do what you want.
>>
>> Best,
>> Matthias
>>
>> Peter Scacheri wrote:
>>> Using the heatmap.2 function, I am trying to generate a heatmap of a 
>>> 2 column x 500 row matrix of numeric values.  I would like the 1st 
>>> column of the matrix sorted from the highest to the lowest values - 
>>> so that the colors reflected in the first column of the heatmap (top 
>>> to bottom) go from red to green.
>>>
>>> After sorting the matrix (z), I tried the following command, but the 
>>> data remains clustered.
>>>
>>> heatmap.2((z),col=greenred(100),dendrogram=NULL,Rowv=FALSE)
>>>
>>> I also tried the following, but the data remained clustered.
>>>
>>> heatmap.2((z),col=greenred(100),Colv=1:ncol(z))
>>>
>>> ANY IDEAS??
>>> Thanks so much,
>>> Peter
>>>
>>> ______________________________________________
>>> 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.
>>
>> -- 
>> Dr. Matthias Kohl
>> www.stamats.de
>
> ______________________________________________
> 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.

-- 
Dr. Matthias Kohl
www.stamats.de