I have the ggplot2 and GGally package and library installed. When I run this code, the font in the diagonal is too large so that it's unreadable (see attached image).
ggpairs(hrdata, columns= c(1,8,19,29), title="Scatterplot Matrix", aes(color=EducationField))
+ scale_fill_manual(values=cbPalette)
+ scale_colour_manual(values=cbPalette)
+ theme_grey(base_size=8)
When I try to add upper=list(continuous=wrap('cor', size=8)), I get the error:
Error: unexpected ','
I am guessing it has something to do with 'cor', but I'm not sure what that represents or how to change it.