Re: [R] Kite Diagrams
On 08/05/2013 04:45 PM, Ruth Chan wrote:
I would like to teach my students to do a simple kite diagram with some
simulated data.
...
I would like to use Altitude as a proxy for distance and I have 2 readings
for each altitude: one to the supposed right and one to the supposed left
of the transect.
...
And I’m now at a loss…would anyone be able to help?
Hi Ruth,
The kiteChart function displays a series of numeric values as widths of
a polygon along some numeric dimension. You can get a kite chart of your
data like this:
forest.data<-read.csv("forest.csv")
forestmat<-matrix(forest.data$Total,nrow=2,byrow=TRUE)
forestmat
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 827 917 946 516 775 777
[2,] 22 41 52 65 78 82
kiteChart(forestmat,timelabels=forest.data$Altitude.percent[1:6]))
but I don't think that is what you want. The code below shows my guess
at what you want, a comparison of "Total" by the altitude variable,
using the mean of the two observations for each forest type and altitude
percent.
forestdat<-matrix(forest.data[,2:3],ncol=2)
colnames(forestdat)<-c("Altitude.percent","Total")
forest.total<-matrix(c(by(forestdat[1:6,2],forestdat[1:6,1],mean),
by(forestdat[7:12,2],forestdat[7:12,1],mean)),nrow=2,byrow=TRUE)
forest.total
[,1] [,2] [,3]
[1,] 776 731.0 872.0
[2,] 80 58.5 31.5
timepos<-c(1,10,20)
kiteChart(forest.total,timelabels=timepos,
varlabels=c("Primary","Secondary"),xlab="Altitude percent",
ylab="Total",main="Forest kite chart")
Jim
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[R] Kite Diagrams
Dear R help, I would like to teach my students to do a simple kite diagram with some simulated data. I have these columns: *Forest.Type* *Altitude.percent* *Total* Primary 20 827 Primary 20 917 Primary 10 946 Primary 10 516 Primary 1 775 Primary 1 777 Secondary 20 22 Secondary 20 41 Secondary 10 52 Secondary 10 65 Secondary 1 78 Secondary 1 82 I would like to use Altitude as a proxy for distance and I have 2 readings for each altitude: one to the supposed right and one to the supposed left of the transect. I rather impulsively tried > kiteChart(t(Total)) Error in varpos[kite] <- varpos[kite - 1] + 1.1 * (kitewidths[kite - 1] + : replacement has length zero And Im now at a loss would anyone be able to help? Thanks and regards, Ruth [[alternative HTML version deleted]] __ 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.
Re: [R] Kite diagrams
Jim, This is very good news, not so much for me, as I don't use them, but I have colleagues who do, and its an expected graphic in student assignments. So I have passed on the information. So many thanks for adding this, I a sure many people will find it useful. Graham On 9 July 2010 09:41, Jim Lemon wrote: > On 07/09/2010 07:23 AM, Graham Smith wrote: >> >> I asked the same question on R-sig-eco, and Ben Bolker provided this >> solution, which as I assume this should show up in a search I copy >> here. >> >> However, if someone can come up with a single function, that would be >> good. > > Hi Graham, > > library(plotrix) > kiteChart(t(X)) > > Jim > __ 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.
Re: [R] Kite diagrams
On 07/09/2010 07:23 AM, Graham Smith wrote: I asked the same question on R-sig-eco, and Ben Bolker provided this solution, which as I assume this should show up in a search I copy here. However, if someone can come up with a single function, that would be good. Hi Graham, library(plotrix) kiteChart(t(X)) Jim __ 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.
Re: [R] Kite diagrams
I asked the same question on R-sig-eco, and Ben Bolker provided this
solution, which as I assume this should show up in a search I copy
here.
However, if someone can come up with a single function, that would be good.
--
I don't do kite diagrams at all, but here are some quick & dirty solutions.
## inspired by violin plots in:
##
http://learnr.wordpress.com/2009/07/02/ggplot2-version-of-figures-in-lattice-multivariate-data-visualization-with-r-part-3/
X <- read.table(textConnection("dist spA spB spC
0 0 0 0
5 0 4 0
10 0 20 0
15 5 30 0
20 10 20 0
25 20 8 4
30 15 2 5
35 5 0 10
40 0 0 20
45 0 0 10
50 0 0 5
55 0 0 0"),header=TRUE)
library(reshape)
mX <- melt(X,id.var="dist")
names(mX)[2:3] <- c("species","abundance")
mX$fabund <- cut(mX$abundance,
breaks=c(-0.01,0,5,20,100),
labels=c("Abs","Rare","Common","Abundant"))
library(ggplot2)
p <- ggplot(mX, aes(x=dist))
## plot by proportion
p + geom_ribbon(aes(ymax = -abundance, ymin = +abundance))+
facet_grid(species ~ .)
## plot by abundance category
p + geom_ribbon(aes(ymax = as.numeric(fabund)-1,
ymin = -(as.numeric(fabund)-1)))+
facet_grid(species ~ .)
-- Ben Bolker Associate professor, Biology Dep't, Univ. of Florida
bol...@ufl.edu / people.biology.ufl.edu/bolker GPG key:
people.biology.ufl.edu/bolker/benbolker-publickey.asc
Graham
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Re: [R] Kite diagrams
On 07/02/2010 04:06 PM, RCulloch wrote: Hi Par, I am trying to do the exact same thing with my class, I would like to use R too, as well as get them to draw it out. I have tried to follow the suggestions but with no luck. If you did get round to sorting the code I wondered if you'd be so kind as to let me into the secret on how to do it?! This looks very much like the example I sent in for the request: Re: [R] Stacked Histogram, multiple lines for dates of news stories? I should have a function written to do that plot this week, so I'll post it on the list if anyone else is interested. Jim __ 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.
Re: [R] Kite diagrams
Hi Par, I am trying to do the exact same thing with my class, I would like to use R too, as well as get them to draw it out. I have tried to follow the suggestions but with no luck. If you did get round to sorting the code I wondered if you'd be so kind as to let me into the secret on how to do it?! Best wishes, Ross -- View this message in context: http://r.789695.n4.nabble.com/Kite-diagrams-tp791596p2276007.html Sent from the R help mailing list archive at Nabble.com. __ 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.
