Hello Thijs,
I think that as you wrote, the aov wouldn't work for you here (due to the
unbalanced design).
I'd recommend you to have a look at the
{ezhttp://cran.r-project.org/web/packages/ez/index.html
} package, which offers a nice wrapping of the car Anova functions.
I've listed a bunch of
Hi all,
I sometimes drag an .RData file into an open R console so to load that data
into the file.
I use windows 7, and it works fine.
But, if I open R by using:
right click on icon - properties - compatibility - (mark the box) run
this program as an administrator
Then I can no longer drag the
Hi Alex,
Could you give us the values you used, by providing the output of:
dput(CRagent[[1]]$xy[1])
dput(CRagent[[2]]$xy[1])
?
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You get a model that enables you to predict future outcomes.
Nice examples are available here:
http://www.statmethods.net/advstats/cart.html
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Read me:
There are several ways.
What I often use is:
pdf(...) # Check: ?pdf
for(i in something)
{
plot(things)
}
dev.off()
And it works fine.
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Hi Penny,
Could you provide the code you are using?
(also, using a subject to the e-mail, would have been nice :) )
Tal
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I suspect that using dev.copy2eps Is not going to help you here.
Please try again using:
pdf(...) # Check: ?pdf
for(i in something)
{
plot(things)
}
dev.off()
But give pdf() the file path.
Make sure you can make it work with simple plots. then check it on your
situation, and let us
-statistics.com (English)
--
On Fri, Oct 22, 2010 at 9:50 PM, n...@aleblanc.cotse.net wrote:
Tal Galili tal.gal...@gmail.com writes:
I suspect that using dev.copy2eps Is not going to help you here.
Please try
...@aleblanc.cotse.net wrote:
Tal Galili tal.gal...@gmail.com writes:
I suspect that using dev.copy2eps Is not going to help you here.
Please try again using:
pdf(...) # Check: ?pdf
for(i in something)
{
plot(things)
}
dev.off()
But give pdf() the file path
There is most of what you need here:
http://www.statmethods.net/interface/workspace.html
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Hello all,
I wish to learn a version control system for managing my R (data analysis)
projects.
I know of SVN and github, and wonder if there is any reason for which I
should prefer the one over the other (or any other platform). An example for
a reason could be if it will make it easier for me
It depends on how your clustered objects are stored.
As written here: http://www.statmethods.net/advstats/cluster.html
The function *cluster.stats() *in the
*fpchttp://cran.r-project.org/web/packages/fpc/index.html
* package provides a mechanism for comparing the similarity of two cluster
I can't see how to vectorized your code, maybe it's possible.
That leaves you with either using parallel processing (for example using the
foreach package)
Or, If you know C, you could put that calculation into a C code inside the R
code using Rcpp.
There was a recent video on the topic on a
Hi Nasrin,
1) You didn't define mean.radiation in your code (for example
using mean.radiation-NULL)
2) Also, you're using attach, which is a good recipe for forgetting
something in your environment which will lead into troubles.
3) You didn't define i (for example i - 1:30)
Tal
Hello Mika,
Most of my problems with win7 where permission problems.
You can check if that is the case, by setting R to ran with
administrator privileges, and see if that solves the problem.
Best,
Tal
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Hello all,
I think I am missing something about the sorting parameter in the match
command/
Here is an example:
a1 - data.frame(name = c(D, B, C, A, A, C))
a2 - data.frame(name = c(A, B, C, D), num = 1:4)
a1
a2
merge(a1, a2, sort = F, by.x = T)
The result is:
name num
1D 4
2B
circumstances in which people might
use merge().
HTH ...
Peter Alspach
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-
project.org] On Behalf Of Tal Galili
Sent: Tuesday, 9 November 2010 10:10 a.m.
To: r-help@r-project.org
Subject: [R] Help with getting
Hello all,
Following on my question here (
http://www.mail-archive.com/r-help@r-project.org/msg116075.html), I
understand now that when using sort = FALSE the order of the merged data
frame is unspecified.
But why was it designed this way? Why not keep the original order (when
possible)?
Hi Paul,
Here are a bunch of tutorials on the topic:
http://www.r-statistics.com/2010/04/repeated-measures-anova-with-r-tutorials/
I suggest a more specific question for people to help :)
Best,
Tal
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Hello all,
I recently discovered the comment command.
I see it can only hold a vector of characters.
Is there a way (or an alternative), to make it possible to have it keep a
list?
(for example, to keep different pieces of information like date of creation,
information of each variable and so
Hello Nasrin,
I think you might be wanting to use
rbind
instead of
merge
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axis.) Would you please help me with it?
Thanks for your help!
On Tue, Nov 9, 2010 at 12:23 PM, Tal Galili tal.gal...@gmail.com wrote:
Hello Nasrin,
I think you might be wanting to use
rbind
instead of
merge
Contact
Details
My objective is to start having meta-data on objects that I create.
For example, consider the following function:
assign2 - function(x, ...)
{
assign(x, ...)
attr(x, creation time) - Sys.time()
x - x
}
assign2(x, 1:4)
assign2 assigns to x the vector 1:4, and it then also adds the creation
Rowlingson
b.rowling...@lancaster.ac.uk wrote:
On Thu, Nov 11, 2010 at 9:37 AM, Tal Galili tal.gal...@gmail.com wrote:
4) My real intention is to somehow change the - operator (not simply
the
assign). I am unsure as to how to do that.
5) Are there any major pros/cons to the adding
Hi Erin,
I wrote about this half a year ago, I imagine most of the information there
still holds true:
http://www.r-statistics.com/2010/06/could-we-run-a-statistical-analysis-on-iphoneipad-using-r/
Contact
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Hello everyone,
Today I started a non-English version of R-bloggers, at:
http://www.r-bloggers.com/lang/
R-bloggers.com is a blog aggregator (or a meta-blog) that offers content
about R from 133 bloggers, publishing about 1 to 5 new posts a day. I am
happy to see over 2700 people had already
Hi Stephen,
I just happened to have upgraded my R today.
Tips:
1) Make sure the folder has full permissions so that you'll be able to
install/update packages on it.
2) I still find the advices (and code) I gave in that article to be
worthwhile. And do pay attention to the directory into which you
Hi John, thank you for that input.
It could be that the code I wrote here:
http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/
Should be updated so every time you install a new R version, you run the
code for it to:
1) copy all packages from
Hi Stephen,
It doesn't exist before you'll make it (that's one of the thing the code in
my post does)
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:
Em 14/11/2010 20:42, csrabak escreveu:
Em 14/11/2010 18:24, Tal Galili escreveu:
Hi John, thank you for that input.
It could be that the code I wrote here:
http://www.r-statistics.com/2010/04/changing-your-r-upgrading-strategy-and-the-r-code-to-do-it-on-windows/
Should be updated so
Hi janesense,
You might find it useful to go through the tutorial listed here for help:
http://www.r-statistics.com/2010/04/repeated-measures-anova-with-r-tutorials/
Cheers,
Tal
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?plot
Will give a good solution
#Example:
set.seed(5)
xx - data.frame(x = runif(50), y = runif(50), z = sample(c(1:3), 50, T))
with(xx, plot(x, y, col = z, pch = 19))
Now you can start going into how to play with the colors, and how to add
?legend to the image...
Tal
Contact
below the dots which is Do
not what I want exactly. I would like below every plot to write some text
but not inside any box that will cover part of the image.
Best Regards
Alex
--- On *Thu, 11/18/10, Tal Galili tal.gal...@gmail.com* wrote:
From: Tal Galili tal.gal...@gmail.com
Subject: Re
I second Harlan's call.
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www.r-statistics.com (English)
Hi all,
I was trying to run the latest version of RCurl on windows 7 with R 2.12 and
got a missing libeay32.dll error.
I now downloaded such a file from here:
http://code.google.com/p/aion-inside/source/browse/trunk/out/libeay32.dll?spec=svn10r=10
And placed it in the system32 folder.
Now I get
)
--
On Sat, Nov 20, 2010 at 2:32 PM, Tal Galili tal.gal...@gmail.com wrote:
Hi all,
I was trying to run the latest version of RCurl on windows 7 with R 2.12
and got a missing libeay32.dll error.
I now downloaded such a file from here:
http://code.google.com/p/aion-inside/source/browse
Dear Farrel,
Now, using the most updated version of the packages, I was able to make your
example work for me - thank you very much for your help!
Best,
Tal
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Hi there,
I'm not sure I understand your question.
What are the two vectors you wish to check their correlation?
Are they the two rows x and a?
Because from your example it seems you are trying to do a correlation
between two singular numbers (so probably I didn't get something straight).
Tal
outputs or
everything in one output if possible.
Please let me know if it is still confusing.
thanx
On Tue, Nov 23, 2010 at 3:35 PM, Tal Galili tal.gal...@gmail.com wrote:
Hi there,
I'm not sure I understand your question.
What are the two vectors you wish to check their correlation
Hi all,
I'm running a complex script which accesses the internet, and sometimes it
stops with the error:
Error in curlPerform(url = url, headerfunction = header$update, curl = curl,
:
Failure when receiving data from the peer
Is there a way to make the script wait longer, or not crash
It seems your model defines more parameters then your data permits (e.g:
singular).
What you can do is try something like this:
summary(aov(formula('FP ~ (lum + obj + man)^2 - Error(vp/(lum + obj +
man)^2)),data=dataf))
(notice the use of + and ^)
This is something your data might permit
For the BH, you can use the command
?p.adjust(..., BH)
For reading the files in and doing the analysis, here is an example:
http://www.r-tutor.com/elementary-statistics/non-parametric-methods/wilcoxon-signed-rank-test
You'd then need to extract all the P values like this:
x - wilcox.test(... )
i
Hello all,
I would like some R function that can translate a string to a URL encoding
(see here: http://www.w3schools.com/tags/ref_urlencode.asp)
Is it implemented? (I wasn't able to find any reference to it)
Thanks,
Tal
Contact
Thank you Duncan, Romain and Gustavo for referring me to both:
URLencode
and
curlEscape
I see that both functions work great for English, but fail to provide with
the proper translation for Hebrew characters.
For example, the word
ש×××
(Peace, in Hebrew)
Should be this:
You might find it useful to look at
rollmean
from the
zoo
package.
Tal
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Did you try:
library(MASS)
?polr
?
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www.r-statistics.com (English)
Hi John,
1) Read the help for the reshape package. What you want is to use the
melt function.
2) There are various ways of doing Repeated measures Anova in R, you might
want to have a look at this:
http://www.r-statistics.com/2010/04/repeated-measures-anova-with-r-tutorials/
(I especially like
Hi John,
Try posting a sample of your data in reply to this e-mail by using:
dput(head(accuracy))
And me (or someone else) will be sure to fix your command.
Regarding the ANOVA, read more :)
Tal
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Dear Ravi - I echo everything you wrote, useR2010 was an amazing experience
(for me, and for many others with whom I have spoken about it).
Many thanks should go to the wonderful people who put their efforts into
making this conference a reality (and Kate is certainly one of them).
Thank you for
Hello Shubha,
To my understanding,
Once you get a dist matrix, you would wish to put it into a clustering
algorithm, who's output you would then put into a plot (which will produce a
dendrogram).
You might want to have a look at the steps given here:
This is the new and exiting kid on the block:
http://stats.stackexchange.com/
There is also:
http://metaoptimize.com/qa
For more machine learning type questions.
Best,
Tal
http://stats.stackexchange.com/
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You mean along with:
http://stats.stackexchange.com/
and
http://stats.stackexchange.com/http://metaoptimize.com/qa/
We have passed the online-over-proliferation stage for out topic of
interest... :)
Tal
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Is this a question from your homework?
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Interesting topic and question.
I hope someone who knows will answer this.
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Hi Erin,
Could you please add a simple self contained code for us to try and help you
with?
(giving us code with doesn't help)
Best,
Tal
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Then please read this:
http://www.r-project.org/posting-guide.html
*Basic statistics and classroom homework:* R-help is not intended for these.
If you want learning materials for R you can check out:
http://stats.stackexchange.com/questions/138/resources-for-learning-r
And:
Hi Patrick,
I don't have an answer for you.
But thought it might be worth to have a look at this:
http://www.r-bloggers.com/getting-data-from-an-image-introductory-post/
Also, there was someone who presented a really simple GUI system in
useR2010. Where his code gave a GUI based on R base
with a line segment between the two
points. The second is the graph of the subset. The third is the EWMA
of the subset data.
Thanks,
Erin
On Fri, Jul 30, 2010 at 10:13 AM, Tal Galili tal.gal...@gmail.com wrote:
Hi Erin,
Could you please add a simple self contained code for us to try
...@gmail.comwrote:
This will work.
I was hoping for 3 distinct graphs so the user would be able to click on
them.
Thanks,
Erin
On Fri, Jul 30, 2010 at 11:07 PM, Tal Galili tal.gal...@gmail.com wrote:
Hello Erin.
I think I understand.
Those the following code solve your issue
As others have mentioned,
A simple place to start looking at would be to go through the list on the
wiki page:
http://en.wikipedia.org/wiki/R_(programming_language)#Commercialized_versions_of_R
And contacting the companies one by one.
The other alternative I would check is to contact the
I would suggest to you the following:
1) Run the same thing, but with a loop instead of apply
2) add the to loop a printing that shows you on what cycle of the loop the
function breaks
3) see if that vector has any Inf or NA values (although in general I think
you are using a numeric instead of a
And in general, you can use:
str(NameOfObject)
To understand it's *str*ucture, and where the value resides.
Cheers.
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People who speak only English and Hebrew (like myself), can't help you.
Consider reposting in English.
Tal
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Have a look at the
stringr
package
It simplifies such things...
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www.r-statistics.com
In such cases (which I don't think must happen), consider using
?lapply
and also
?unlist
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Fun question.
Here is one solution that has come to mind:
# graphics output test
a - c(1,3,2,1,4)
b - c(2,1,1,1,2)
c - c(4,7,2,4,5)
d - rnorm(500)
e - rnorm(600)
op - par(mfrow=c(2,2))
pie(a)
pie(b)
pie(c)
txt - capture.output(ks.test(d,e))
txt - txt[txt != ]
txt - paste(txt, collapse = \n )
From what I've seen on other OSS project, GPL can be a bit viral, making it
(purposefully) difficult for someone to close the source code for free
reuse.
My tip for you would be to try and see what REvolution computing has been
doing with their product (which is a repackaging of R with more code
One solution -
let's say our data.frame is xx
Then:
xx - matrix(rnorm(9), 3,3)
apply(xx 0, 1, any)
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Hi Qing.
I believe what you are referring to is:
p.adjust(..., BH)
The fdr option uses the method of Benjamini, Hochberg, and Yekutieli.
(Not the original Benjamini, Hochberg article)
It might be the method described here:
Hi Marie and Gavin,
I do remember there is some command doing
silent, so to suppress output (as if directing it to sink, but not really
directing it anywhere).
The problem is I don't remember the command at the moment - but some
searching might yield you results.
Cheers,
Tal
Hi Sneeketeeke,
Did you happen to have a look at the example on
?aov
and
?TukeyHSD
Also, you might need to move your data from wide to long. For which you
might wish to look at
?reshape
(or better yet the
?melt
?cast
commands from the reshape package)
Tal
Contact
Hi trzeszutek,
Another approach you might want to look at is the clustergram:
http://www.r-statistics.com/2010/06/clustergram-visualization-and-diagnostics-for-cluster-analysis-r-code/
http://www.r-statistics.com/2010/06/clustergram-visualization-and-diagnostics-for-cluster-analysis-r-code/
) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
--
On Thu, Aug 19, 2010 at 6:02 AM, Stephen Liu sati...@yahoo.com wrote:
- Original Message
From: Tal Galili tal.gal...@gmail.com
You could find several good examples on the first several results here:
http://www.google.com/search?sourceid=chromeie=UTF-8q=plot.ci+R
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Hi FishLover,
I believe this will answer your question:
# getting some dummy data
seed(10)
y - rnorm(100)
x - sample(c(1,2,5.5), 100 , T)
boxplot(y~x) # won't work
boxplot(y~x, at = c(1,2,5.5), xlim = c(0,6)) # will work
Cheers,
Tal
Contact
Hello all.
A Journal we are sending an article to is asking for the following:
To ensure the best reproduction quality of your figures we would appreciate
high resolution files. All figures should preferably be in TIFF or EPS
format... and should have the following resolution: Graph: 800 - 1200
Hello all,
A friend recently brought to my attention that vector assignment actually
recreates the entire vector on which the assignment is performed.
So for example, the code:
x[10]- NA # The original call (short version)
Is really doing this:
x- replace(x, list=10, values=NA) # The original
Hello all,
I am looking for the function benchmark2 ( a nice function for comparing the
performance of two or more functions).
I found online it exists in the butler package
http://crantastic.org/packages/butler
But for some reason, that package was removed from CRAN:
(English)
--
On Wed, Sep 1, 2010 at 6:37 PM, David Winsemius dwinsem...@comcast.netwrote:
On Sep 1, 2010, at 11:13 AM, Tal Galili wrote:
Hello all,
I am looking for the function benchmark2
:
On 01/09/2010 11:09 AM, Tal Galili wrote:
Hello all,
A friend recently brought to my attention that vector assignment actually
recreates the entire vector on which the assignment is performed.
So for example, the code:
x[10]- NA # The original call (short version)
Is really doing
Hello dear R help members (and also Yihui and Romain),
There are currently 28 R bloggers (out of the 117
R-bloggershttp://www.r-bloggers.com/I know of) that are using
wordpress.com for publishing their R code (and I suspect this number will
increase with time).
WordPress.com doesn't support R
.
Regards,
Yihui
--
Yihui Xie xieyi...@gmail.com
Phone: 515-294-2465 Web: http://yihui.name
Department of Statistics, Iowa State University
2215 Snedecor Hall, Ames, IA
On Thu, Sep 9, 2010 at 3:02 AM, Tal Galili tal.gal...@gmail.com wrote:
Hello dear R help members (and also Yihui
Hello D,
Thanks for sharing your technique, nice work :)
I hope the solution the people here are helping with will make it both
cheaper and simpler for people with less CSS expreince.
p.s: thank you for the kinds words regarding R-bloggers.com
Best,
Tal
Contact
Would using the
?save
function on the rpart object do what you want ?
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Hello all,
There is currently a (very !) lively discussions happening around the
web, surrounding the following topics:
1) Is R efficient? (scripting wise, and performance wise)
2) Should R be written from scratch?
3) What should be the license of R (if it was made a new)?
Very serious people
Hello Alaios,
I see a bunch of good materials here:
http://www.google.co.il/search?sourceid=chromeie=UTF-8q=Object+oriented+programming+in+R
http://www.google.co.il/search?sourceid=chromeie=UTF-8q=Object+oriented+programming+in+RDid
you look into them ?
Contact
, Sep 16, 2010 at 12:49 PM, jaropis jaro...@zg.home.pl wrote:
A few days ago Tal Galili posted a message about some controversies
concerning the future of R. Having read the discussions, especially those
following Ross Ihaka's post, I have come to the conclusion, that, as usual,
the problem
(English)
--
On Thu, Sep 16, 2010 at 12:49 PM, jaropis jaro...@zg.home.pl wrote:
A few days ago Tal Galili posted a message about some controversies
concerning the future of R. Having read
contact e-mail address!
Edwin
--
On Mon, 20 Sep 2010 02:14:17 -0700 (PDT)
Tal Galili via LinkedIn mem...@linkedin.com wrote:
LinkedIn
Tal Galili requested to add you as a connection on
LinkedIn:
--
Arnaud,
I'd like to add you
Hi Harold,
I thought of one way to do this, but maybe (probably) there is a faster way:
tmp - data.frame(index = gl(3,20), foo = rnorm(60))
subset.first.x.elements - function(INDEX, num.of.elements = 5)
{
t.INDEX - table(factor(INDEX, levels = unique(INDEX)))
running.indexes -
Bandwidth of what? Internet traffic/some sort of smoother?
Your question is not clear to me.
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And of course there is also:
http://stats.stackexchange.com/questions/tagged/r
Cheers,
T
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Did you look at:
?curve
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Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
Have a look at
?textplot
From the
gplots
package:
http://cran.r-project.org/web/packages/gplots/index.html
Contact
Details:---
Contact me: tal.gal...@gmail.com | 972-52-7275845
Read me: www.talgalili.com (Hebrew) |
I am guessing you are saving the plot using the menu system.
If that is the case, have a look at:
?pdf
?png
Generally, I like saving my graphics to pdf since it is vectorized.
Cheers,
Tal
Contact
Details:---
Contact me:
Hello,
It seems that there is a problem when plotting an expression in the ylab of
a plot in case it is too long.
Example:
plot(1)
title(ylab = test
looong
) # work
plot(1)
title(ylab = expression(paste(test (% of 360
, Tal Galili tal.gal...@gmail.com wrote:
Hello,
It seems that there is a problem when plotting an expression in the ylab
of
a plot in case it is too long.
Example:
plot(1)
title(ylab = test
looong
) # work
My honor.
A short question: if there is something in the device that is sensitive to
the overlapping of the text, then is it possible to add a warning massage
output when the length of the text is longer then the device dimensions?
With much respect,
Tal
Contact
Hello Steve,
You'll need to give more information for people to help you.
1) Is this the first time you installed R? Or was it a working R version
that suddenly started having this problem?
2) Did you try uninstalling this version, downloading a new version,
installing it - and seeing what
Hi Karl,
There is an example of using Deducer's with ggplot2 to produce a rose plot
(including a video of use), I thought you might find it useful:
http://www.r-statistics.com/2010/08/rose-plot-using-deducers-ggplot2-plot-builder/
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