On Feb 25, 2013, at 7:37 AM, Nicole Ford wrote:
> hello, all.
>
> one of my students is having an issue with the pie & legend function.
>
> this is her code. (below)
>
> it works just fine for me.
>
> her error is "plot.new has not been called yet". i know this means her pie
> chart is coming up blank so the legend will not work.
So at that point, why not issue the command:
plot.new() # ?
Graphics problems can be very system specific. Follow-up should include a
proper adherence to the Posting Guide advice about the necessary problem
description. You should assist R help by first educating yourself and then
giving your students proper training in how to construct questions for R-help.
>
> according to ?graphics this package *is* supposed to handle these
> functionalities. however, when i tried to install it i get the following
> error:
>
> Warning message:
> package Œgraphics‚ is not available (for R version 2.15.2)
The graphics package is part of the base installation. As far as I know you
cannot reinstall it. You would instead need to reinstall R if you thought her
installation if R was corrupt.
--
David.
>
> however, the ?graphics page shows it is indeed available for this version of
> R.
>
>
> Package: graphics
> Version: 2.15.2
> Priority: base
> Title: The R Graphics Package
> Author: R Core Team and contributors worldwide
> Maintainer: R Core Team <r-c...@r-project.org>
> Description: R functions for base graphics
> Imports: grDevices
> License: Part of R 2.15.2
> Built: R 2.15.2; ; 2012-10-26 16:14:39 UTC; unix
>
> thoughts are greatly appreciated.
>
>
>
>> strength <- factor(c(rep("8.0-9.9", 2), rep("7.0-7.9", 12), rep("6.0-6.9",
>> 108)))
>> plot(strength, xlab="Earthquake Strength", ylab="Frequency")
>> histogram(strength, xlab="Earthquake Strength", ylab="Relative Frequency by
>> Percentage")
>> pie(table(strength))
> legend("topright", title="Earthquake Strength", cex=0.6, pch=16,
> col=c("white", "blue", "red"), legend=c("6.0 to 6.9", "7.0 to 7.9", "8.0 to
> 8.9"), ncol=3)
>
David Winsemius
Alameda, CA, USA
______________________________________________
R-help@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.
