Re: [R] plot each column of a matrix or dataframe versus x in a single plot

From: Jorge Iván Vélez <jorgeivanvelez_at_gmail.com>
Date: Thu, 14 Feb 2008 10:17:01 -0500

Hi Thomas,

Ckeck ?matplot. Here's a simple example:

# Data set

x=runif(100)                    # Axis
x1=rnorm(100,25,2)         # Variable x_i
x2=rnorm(100,10,1)
 x3=rnorm(100,15,4)
 x4=rnorm(100,30,4)
DATA=cbind(x,x1,x2,x3,x4)

# Plot
matplot(x,DATA[,2:5],col=1:5,pch=1:5)

I hope this helps.

Jorge

On 2/14/08, tomaschwutz <thomas.wutzler_at_web.de> wrote:
>
> How do a plot several columns of a matrix at once in a single plot
> versus a single x-variable?
>
> The default plot.matrix or plot.dataframe commands plot each column
> versus each other column in several sub-plots. I want to plot each
> column versus a single other vector (x) as several lines or points in
> one plot.
>
> I can do it by hand: get the range of all variables (i.e. columns of
> the matrix or dataframe), initiate an empty plot command, loop through
> all the columns and issue a lines or points command.
> I guess there is a predefined sophisticated function for that,
> however, I was not able to find it.
>
> Does someone know where I find such a function?
>
> Best regards
> tomaschwutz
>
> ______________________________________________
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