[R] heat maps with qplot

greg holly mak.hholly at gmail.com
Fri Mar 10 15:45:14 CET 2017

 Hi all;

The followings are my R codes for heat maps in ggplot2. I need to specify
the font size for the y-axis (x-axis works) as well as font size for label
y and x too. Your help highly appreciated.



qplot(x=Var1, y=Var2, data=melt(cor(a, use="p")), fill=value, geom="tile") +
 scale_fill_gradient2(limits=c(-1, 1))+
 ylab('Super pathways') +
 xlab('Significant Metabolites in Super pathways for DI') +
 theme(axis.text.x = element_text(angle = 90, hjust = 1, size=6))

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