I've been using heatmap(), hclust(), and cutree(), and I'm trying to figure
out the column labels of the left (as opposed to the right) cluster.

Using cutree(x, k=2), I get two clusters labeled 1 and 2.  How do you figure
out if cluster 2 is the one associated with the left cluster on the heatmap
(instead of manually going to the heatmap)?

Thanks,
Andrew

Andrew Yee, MD
MGH Cancer Center

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