Last question about plot (and NA)

[Tristan Lorino <tristan.lorino@lcpc.fr>]

Thank you for your help. These days, I spend a lot of time on
SPlus, so... I hope this will be my last question before a long
time!

I would like 2 plots on the same graphic:

> x_data.frame(u=c(1,2,3,4,5),v=c(5,4,9,7,4),w=c(2,NA,7,NA,3))
> plot(x$u,x$v,ylim=c(1,10),type="l")
> points(x$u,x$w,col=8,type="p")

But I would like to have 2 lines, instead of one line (x$v) and 3
points (x$w). If I write
> points(x$u,x$w,col=8,type="l")
the second plot is not plotted  -- because of NA.

How can I resolve this problem?

Thank you,
Tristan Lorino


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