Asymmetric colors for heatmap
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@christianstratowavieboehringer-ingelheimcom-545
Last seen 6.8 years ago
Dear all, Currently, my colors are as follows: mycol <- c("blue1","blue2","blue3","blue4","black","yellow4","yellow3","yellow2 ","yel low1") heatmap(snp, Rowv=NA, Colv=NA, col=mycol) However, I would like to have the following colors: bright blue -> dark blue: for intensity range from 0 to 2 in steps of 0.5 (i.e. 4 grades of blue) black: for intensity 2 dark yellow -> bright yellow: for intensity range from 2 to 8 in steps of 0.5 (i.e. 8 grades of yellow) You may realize that I want to display copy number data from SNP-chips as heatmap. Since copynumber = 2, is the default value, I want to display it in black, LOH in increasing blue, and amplifications in increasing yellow. Even though there may be higher amplification rates, a value of CN=8 should already display the brightest yellow. In Spotfire it is easy to achieve this, especially that CN=2 is always displayed as black, however, I do not know how to do it in R. Can you tell me how I have to create the colors to achieve this? (P.S.: Of course, I could do: snp[snp>8] <- 8, but this will not solve my problem with asymmetric colors) Thank you in advance Christian Stratowa
copynumber copynumber • 880 views
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@sean-davis-490
Last seen 15 days ago
United States
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@christianstratowavieboehringer-ingelheimcom-545
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