legend for heatmaps

[ashuchawla]

I am trying to create a heat map of genes with log2foldchange values. Following is my code,

pdf("fold_change_heatmap_top_100.pdf" , height=20, width=15)
x <- as.matrix(fold_change_genes[fold_change_genes$gene %in% top_100 , c(2,3,4)])
heatmap(x, margins = c(6,6) , cexCol=2 )
dev.off()

But I cannot see the legend for this plot. I am not sure how draw that..Could anyone please help me? I cannot use gplots::heatmap.2 as it is not installed on the cluster I am working on yet. Please suggest something.

Thanks,
Ashu

[mastal]

legend for heatmaps

have you tried typing '?heatmap' to get the help page for
the R function heatmap.

That should give you a list of the parameters you can use with heatmap().

[ashuchawla]

Yes I have and it doesnt tell me anything

[paolo.kunder]

why don't you try

heatmap.2 in library gplots

[jp.]

can somebody answer this trouble, please?

http://seqanswers.com/forums/showthread.php?t=33023&highlight=heatmap.2