Weiwei Shi wrote:
> hi, there:
> i have 2 questions associated with heatmap
>
> in heatmap.2{gplot}, there is a bar called "raw z-score" showing the
> coloring legend for each pixel. Where can I find that z-score's
> formulae?
>
A Z-score is the mean of the group divided by the standard deviation.
> question 2,
> for example, I have 5 groups and I want to label each group with a
> color name from "#FF0000" to "#0000FF" evenly. so basically i need a
> vector like this:
> c("#FF0000", ?, ?, ?, "#0000FF")
>
You could look at RColorBrewer or geneplotter for some ideas on how to
do this.
If you don't have a copy of the Bioconductor book, it may be a good idea
to pick one up. It is quite helpful for getting started using
bioconductor and gene expression data.
Hope this helps.
Sean
______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
