From: Dimitris Rizopoulos <dimitris.rizopoulos_at_med.kuleuven.be>

Date: Thu, 14 Feb 2008 16:12:52 +0100

Dimitris Rizopoulos

Ph.D. Student

Biostatistical Centre

School of Public Health

Catholic University of Leuven

R-help_at_r-project.org mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu 14 Feb 2008 - 15:18:05 GMT

Date: Thu, 14 Feb 2008 16:12:52 +0100

you could use the function matplot(), e.g.,

x <- 1:20

vals <- 2 + rep(1:5, each = 20) * rep(x, 5) + rnorm(100)
dim(vals) <- c(20, 5)

matplot(x, vals, type = "l", lty = 1)

I hope it helps.

Best,

Dimitris

Dimitris Rizopoulos

Ph.D. Student

Biostatistical Centre

School of Public Health

Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium

Tel: +32/(0)16/336899 Fax: +32/(0)16/337015 Web: http://med.kuleuven.be/biostat/ http://www.student.kuleuven.be/~m0390867/dimitris.htm

- Original Message ----- From: "tomaschwutz" <thomas.wutzler_at_web.de> To: <r-help_at_r-project.org> Sent: Thursday, February 14, 2008 3:55 PM Subject: [R] plot each column of a matrix or dataframe versus x in a singleplot

> 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
**>
**> ______________________________________________
**> R-help_at_r-project.org mailing list
**> https://stat.ethz.ch/mailman/listinfo/r-help
**> PLEASE do read the posting guide
**> http://www.R-project.org/posting-guide.html
**> and provide commented, minimal, self-contained, reproducible code.
**>
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