Hi, On my heatmap, I am doing: > rbg <- maPalette(low="blue", high="red", mid="white") > Feature_GeneNames <- mget(unique(myFeatureGenes),env = moe430aGENENAME); > row.names(esetFeatureX) <- Feature_GeneNames; > colnames(esetFeatureX) <- samples; > heatmap(esetFeatureX,Rowv= NA ,Colv= NA,col=rbg,margins=c(10,30)); I can see nice heat map, but how should I put legend on heatmap image because legend() does seem to work in combination of heatmap. May be I am doing something wrong. How can I put legend & color scale below heatmap image. Any heatmap suggestion would be great..! Thank you, Saurin