[R] ggplot2: font size mismatch for pdf output

From: Michael Friendly <friendly_at_yorku.ca>
Date: Mon, 12 May 2008 10:20:22 -0400


Hi

In the following, the graph I see on the screen and the .png output coincide. However, in the .pdf file, the fonts seem to be scaled fairly larger, resulting in the label for the top legend disappearing. Is this an infelicity or bug, or is there something I've missed?

More generally, how do I control the size of fonts used in legends and axis labels?

library(car)
library(ggplot2)

qp <-qplot (education , income , shape=type , size=women , colour=prestige ,

         xlab="Education" , ylab="Income", data=Prestige)     + scale_y_continuous(limits=c(NA, 20000)) qp + scale_size(to=c(1,8))

ggsave(file="prestige-ggplot.png", width=6, height=5) # OK ggsave(file="prestige-ggplot.pdf", width=6, height=5) # fonts too large

-Michael



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