Hello sir; I use the function "heatmap.2" to draw a heatmap of microarray data,which consists of logratios. Q1 But the lengend shows the Z score and the corresponding color.But I want the legend to show the logratios and the corresponding color.How can I do it? Q1 How can I control that cluster only applied to genes(rows) or samples(columns) via heatmap.2 function?Default is cluster applied to both rows and columns. Thanks a lot! My best!