I want to make a plot, but instead of showing _numerical_ values, I would like to show _symbolic_ values. For example, I want to plot a function y = a x + b, where x varies between Xmin and Xmax. I would like the plot to show, in the x-axis, the strings Xmin and Xmax, instead of their numeric values. Is it possible? Alberto Monteiro
maybe you're looking for curve(), e.g.,
curve(5*x + 2, -3, 4, ylab = expression(5*x + 2))
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: "Alberto Monteiro" <albmont at centroin.com.br>
To: <r-help at stat.math.ethz.ch>
Sent: Monday, June 04, 2007 3:18 PM
Subject: [R] Abstract plot
>I want to make a plot, but instead of showing _numerical_ values,
> I would like to show _symbolic_ values.
>
> For example, I want to plot a function y = a x + b, where
> x varies between Xmin and Xmax. I would like the plot
> to show, in the x-axis, the strings Xmin and Xmax, instead
> of their numeric values. Is it possible?
>
> Alberto Monteiro
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
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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.
>
Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
You can do than. You just need to specify the strings in the
axis-labels.
plot(y~x, axes = F)
axis(1, at = range(x), labels = c("Xmin", "Xmax"))
axis(2)
Cheers,
Thierry
------------------------------------------------------------------------
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature
and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics,
methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx op inbo.be
www.inbo.be
Do not put your faith in what statistics say until you have carefully
considered what they do not say. ~William W. Watt
A statistical analysis, properly conducted, is a delicate dissection of
uncertainties, a surgery of suppositions. ~M.J.Moroney
> -----Oorspronkelijk bericht-----
> Van: r-help-bounces op stat.math.ethz.ch
> [mailto:r-help-bounces op stat.math.ethz.ch] Namens Alberto Monteiro
> Verzonden: maandag 4 juni 2007 15:19
> Aan: r-help op stat.math.ethz.ch
> Onderwerp: [R] Abstract plot
>
> I want to make a plot, but instead of showing _numerical_
> values, I would like to show _symbolic_ values.
>
> For example, I want to plot a function y = a x + b, where x
> varies between Xmin and Xmax. I would like the plot to show,
> in the x-axis, the strings Xmin and Xmax, instead of their
> numeric values. Is it possible?
>
> Alberto Monteiro
>
> ______________________________________________
> R-help op 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
> and provide commented, minimal, self-contained, reproducible code.
>