stats787 wrote:
Hi,
I am trying to plot the following data such that both variable y and z vs x.
(ie two lines on a single plot). As the x variable is not numeric, how do I
go about it? Appreciate if any expert could help.
I know I use plot() follow by lines() to add another line to the plot. But
my problem is i was unable to plot y vs x in the first place.
Hi stats787,
I think this is a replay of a previous problem where the sender expected
the values on the abcissa to be sorted before plotting. You have the
additional camoflage of a factor as that set of values. One minor
problem is that the separator is missing between elements 1 and 2 in the
eighth line. After fixing that, try this (assuming your data frame is
named "stats787":
plot(as.numeric(stats787$x)[order(stats787$x)],stats787$y,type="l",col="red")
lines(as.numeric(stats787$x)[order(stats787$x)],stats787$z,col="green")
Jim
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
