heat maps with qplot

Hi Greg,

?theme

You can use the axis.text and axis.title if y and x are to be identical,
or axis.text.x, axis.text.y, axis.title.x, axis.title.y if you need
different font size.

HTH
Ulrik

On Fri, 10 Mar 2017 at 15:47 greg holly <mak.hholly at gmail.com> wrote:

 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.

Thanks,

Greg

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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