On 04/17/2013 08:35 AM, Ye Lin wrote:
Hi,
I want to plot two variables on the same graph but with two y axis just
like what you can do in Excel. I searched online that seems like you can
not achieve that in ggplot. So is there anyway I can do it in a nice way in
basic plot?
Suppose my data looks like this:
Weight Height Date
0.1 0.3 1
0.2 0.4 2
0.3 0.8 3
0.6 1 4
I want to have"Date"as X axis ,"Weight" as the left y axis and "Height" as
the right y axis.
Hi Ye lin,
Try this (yldat is your data above as a data frame):
library(plotrix)
twoord.plot(yldat$Date,yldat$Height,yldat$Weight,
lylim=c(0,1.04),rylim=c(0,0.61),
xtickpos=1:4,xticklab=1:4)
That should get you started.
Jim
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