[R] Plotting from a matrix, where column 1 is your x value

[Rui Barradas]

Hello,

There are several ways of doing this, perhaps the easiest is with ?matplot.
You should provide some data example, like the posting guide says. Since 
you haven't, I've made up some.

y <- replicate(3, cumsum(rnorm(10)))
x <- matrix(c(1:10, y), ncol = 4)

matplot(x[, 1], x[, -1], type = "l")


Hope this helps,

Rui Barradas

Em 14-12-2012 11:28, masepot escreveu:
> Hello,
>
> I'm very new to R, and have managed to plot xy graphs, but can't seem to
> plot a matrix properly.
>
> The first column is my time points, and the following columns 2-4 are the
> replicates of my experiment.
>
> I've tried using row.names=1 to make the first column the value for that row
> (whereas before I had 1-31 sequence) and then my 1st column) but I can't
> work out how to tell it that column 1 of my dataset is the xvalue for the
> data in that row?
>
> It's probably really simple, but I can't seem to figure it out!
>
> Many thanks, any help appreciated!
>
> Laura
>
>
>
> --
> View this message in context: http://r.789695.n4.nabble.com/Plotting-from-a-matrix-where-column-1-is-your-x-value-tp4653076.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.