[R] Displaying additional values on the Y-axis ggplot2

From: Christopher David Desjardins <cddesjardins_at_gmail.com>
Date: Thu, 24 Jun 2010 13:16:22 -0500

I am running the following code:

mfg0 <- ggplot(aes(x=Grade,y=Math,colour=RiskStatic45678),data=math.f) mfg1 <- mfg0 + geom_smooth(method="lm", formula=y ~ ns(x,2),size=1) + geom_smooth(aes(y=nalt.math,color="NALT"),size=1,data=nalt) + scale_colour_brewer("Risk Status", pal="Set1") + coord_cartesian(ylim = c(175, 245))

And when I specify that, the only value that shows up on the Y-axis is a '200'. How can I manually specify that I want 180, 200, 220, and 240 to show up? Also please cc me on the email as I am a digest subscriber.


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