[R] heat maps with qplot

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Fri Mar 10 16:24:13 CET 2017

This could be as simple as looking at the parameter "axis.text.x" and thinking "maybe there is another parameter called axis.text.y that I could try" and reading the ggplot2 help pages for the theme and element_text functions. If not then you need to make your example complete enough (including just enough data to illustrate a problem) that we can run your code and see what you see and hopefully understand why you have a problem. 

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Sent from my phone. Please excuse my brevity.

On March 10, 2017 6:45:14 AM PST, greg holly <mak.hholly at gmail.com> wrote:
> Hi all;
>The followings are my R codes for heat maps in ggplot2. I need to
>the font size for the y-axis (x-axis works) as well as font size for
>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))
>	[[alternative HTML version deleted]]
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