I am using the heatmap.2 function and passing (...,xlab = "label1", ylab
= "label2", cexRow = 0.7, cexCol = 0.7)
 
I have even set cex.lab, cex.axis, cex to 0.7; but in the plot, label1
and label2 don't seem to scale down. 
 
Any help would be appreciated.
 
Cheers!
Harshal

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