[R] Scatterplot question

[Andy Bunn]

Something like this will work:

foo.df <- data.frame(x = 1:8, y1 = c(1,3,5, NA, NA, NA, NA, NA),
                              y2 = c(NA, NA, NA, 7, 9, 11, NA, NA),
                              y3 = c(NA, NA, NA, NA, NA, NA, 13, 15))
plot(foo.df$x, foo.df$y1, ylim = c(0,20), type = "n")
points(foo.df$x, foo.df$y1, pch = 1)
points(foo.df$x, foo.df$y2, pch = 2)
points(foo.df$x, foo.df$y3, pch = 3)


HTH, Andy


> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of
> judith.baltsar at gmx.de
> Sent: Thursday, December 09, 2004 11:41 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Scatterplot question
> 
> 
> Dear list members,
> I have a probably simple question concerning scatterplots: I want to 
> draw a plot with one X but several Y columns, so that every group 
> of samples gets a different symbol. My table looks like this:
> 
> X	Y1	Y2	Y3
> 1	1
> 2	3
> 3	5
> 4		7
> 5		9
> 6		11
> 7			13
> 8			15
> 
> Simple in Excel or StarOffice, but how do I do it in R?
> 
> Thanks a lot
> 
> Judith
> 
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