[R] Rose Diagrams for Geology
David L Carlson
dcarlson at tamu.edu
Fri Nov 21 15:53:49 CET 2014
No. Just use the circular() function to specify that your data are in degrees and clockwise and the graph will be labeled that way.
David C (I was beginning to think that this thread was only for Davids).
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of jwd
Sent: Friday, November 21, 2014 1:58 AM
To: r-help at r-project.org
Subject: Re: [R] Rose Diagrams for Geology
On Tue, 18 Nov 2014 22:06:03 -0600
David Doyle <kydaviddoyle at gmail.com> wrote:
> Thank you to David and David for their help. The code below
> generated what I needed.
> mydata <- read.table("http://doylesdartden.com/R/Joints.csv",
> header=TRUE, sep=",",)
> x <- circular(mydata$JointsRad)
> #Set point character to use
> pch = 20,
> #sets font size
> cex = 1,
> #parameter that controls the size of the circle.
> #1= default <1 makes it larger > makes it smaller
> shrink = 1,
> #the color for filling the rose diagram.
> prop = 2,
> # number of bins. 36 = 10 degrees each. 18 = 20 degree
> each bins=36,
> # Ticks showing bins
> # Unites.
> # list main title
> main="Rose Diagram of XXX")
> # for more info see
I've been following this thread with some interest. One problem that I
might have with the code above is that as it is, the plot is labeled
with 0-deg to the left, and numbered counter clockwise (standard
trigonometric format). Most field mapping data I have collected has been
either in quadrant form (rarely) or more commonly in azimuthal form
(0-360 degrees order clockwise from the top). Is that an issue?
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