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...d 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

hi netters I have a rather simple question. I have a data frame with two variables X and Y, both of which are factors. X has 100 levels while Y has 10 levels only. The data frame has 100 rows in all, so for X the values are unique, and Y has many replicate values. Now I wanna reduce the data frame into 10 rows only, according to the 10 levels of Y. I don't care which value of X is in

...005-05-12). charles at tofu:~$ R --version R 1.5.1 (2002-06-17). I am wondering wether there is a fix or I have to ask the admin of the mosix cluster to upgrade R... Best regards, -- Charles Plessy, Ph.D. - Genome Science Laboratory The Institute for Physical and Chemical Research (RIKEN) 2-1 Hirosawa, Wako, Saitama 351-0198, Japan plessy at riken.jp -- Fax: 048-462-4686 -- Tel: 048-467-9515