[BioC] displaying heatmap with gene names instead of Affy probes

[Sean Davis]

Ruppert Valentino wrote:
> Hello,
>           Can anyone tell me how to display heatmap with gene names instead 
> of Affy probes when displaying heatmap from Affy exprsSet. I looked at the 
> heatmap function and exprs class but I am at a loss as how to change the 
> name on the heatmap to Gene name instead of Affy ID.
>
> I managed to get the geneids as follows :
>
> geneid <- mget(geneNames(eset), envir = hgu133aSYMBOL)  # get gene symbols
>
>
> but would be greatful for any advice on what to do next to get heatmap with 
> gene names instead of Affy IDs.
>   

You probably want to look at the help for heatmap.  There is an argument 
to the heatmap function called labRow which can be used for this purpose.

Sean