[R] heatmap not symmetric ?

[Liaw, Andy]

> From: Charles Plessy
> 
> Dear list,
> 
> I hope it is not a FAQ, but I searched the archives and Google, and
> found nothing. The question is simple :
> 
> I do not understand why, starting from a symmetrical 
> correlation matrix,
> heatmap produces an asymmetrical image.

Umm... because you haven't read the help page for heatmap carefully enough?
It says:

symm    logical indicating if x should be treated symmetrically; can only be
true when x is a square matrix. 

I believe Martin added this after some discussion on R-help.

Andy


> Best,
> 
> Charles
> 
> -- 
> Charles Plessy, Ph.D. - Genome Science Laboratory
> The Institute for Physical and Chemical Research (RIKEN)
> 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
> Fax: 048-462-4686  --  Tel: 048-467-9515
> 
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