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
Hi,
you can see: ?matplot
Best
Vito
you wrote:
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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I assume the blanks are actually NAs? If so, try something like (say `df' is the data frame): matplot(df$X, df[,-1], pch=1:3) or refer to the help page for matplot() for more options. Andy> From: judith.baltsar at gmx.de > > Dear list members, > I have a probably simple question concerning scatterplots: I want to > draw a plot with one X but several Y columns, so that every group > of samples gets a different symbol. My table looks like this: > > X Y1 Y2 Y3 > 1 1 > 2 3 > 3 5 > 4 7 > 5 9 > 6 11 > 7 13 > 8 15 > > Simple in Excel or StarOffice, but how do I do it in R? > > Thanks a lot > > Judith > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > >
Something like this will work:
foo.df <- data.frame(x = 1:8, y1 = c(1,3,5, NA, NA, NA, NA, NA),
y2 = c(NA, NA, NA, 7, 9, 11, NA, NA),
y3 = c(NA, NA, NA, NA, NA, NA, 13, 15))
plot(foo.df$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
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
<judith.baltsar <at> gmx.de> writes: : : 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? If you already have this as a data frame or matrix then others have already mentioned matplot. If you are looking for a quick way to get the data into that form in the first place without manually padding it out with NAs then you could represent them as time series and cbind them. Assuming regularly spaced time series you can use ts: Y1 <- ts(c(1,3,5), start = 1) Y2 <- ts(c(7,9,11), start = 4) Y3 <- ts(c(13,15), start = 7) Y <- cbind(Y1, Y2, Y3) plot(Y, plot.type = "single", col = rainbow(3)) # or matplot(1:8, Y)