[R] heatmap not symmetric ?

[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.

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