Hi,

I am trying to draw a heatmap for my 45 topvar gene by the use of heatmap.2, and when I set a srtRow=45 in my code(below):

heatmap.2( assay(rld)[ topVarGenes, ], srtRow=45, scale="row",trace="none", dendrogram="column",col = colorRampPalette( rev(brewer.pal(9, "RdBu")) )(255))

row names collided with each other in messy way.

would you please help me to solve this problem? (also I'm a newbie beginner using R Studio) Thank you so much

heatmap.2 isn't a Bioconductor package, so this isn't the place to ask for help. You could ask on R-help@r-project.org, which is the listserv for CRAN packages. A Bioconductor alternative would be to use the ComplexHeatmap package, which IMO is far superior to heatmap.2.