[R] duplicate data points on a line graph
Hi, I am new to R plot. I am trying to increase the data point observation when duplicate data points exist x y 1 10 1 10 2 3 4 5 9 8 in the about example 1, 10 would be displayed larger than the other data points. Could someone give me some assistance with this problem 757-864-7114 LARC/J.L.Shipman/jshipman jeffery.l.ship...@nasa.gov __ 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.
[R] duplicate data points on a line graph
If you want to take the second approach, it can be relatively easily
generalized by calculating the cex values based on the count of ordered
pairs in the original dataset.
Here's a data set:
> xy
x y
[1,] 1 4
[2,] 1 5
[3,] 2 3
[4,] 3 3
[5,] 4 5
[6,] 5 2
[7,] 1 4
[8,] 2 3
Here's the same set fully sorted:
xy[order(x,y),]->xyord
x y
[1,] 1 4
[2,] 1 4
[3,] 1 5
[4,] 2 3
[5,] 2 3
[6,] 3 3
[7,] 4 5
[8,] 5 2
There's gotta be some very simple way to create a series of values for
cex but I'm missing it, other than a loop like
cexvec<-rep(1,8)
for i in 2:8 {
if (xyord[i,1]==xyord[i-1,1] & xyord[i,2]== xyord[i-1,2] ) {
cexvec[i]<-cexvec[i-1]+1
}
}
You get the idea, sort of :-)
Carl
On 7/15/2009 2:19 PM, NDC/jshipman wrote:
> Hi,
> I am new to R plot. I am trying to increase the data point
> observation when duplicate data points exist
>
> xy
> 110
> 110
> 23
> 45
> 9 8
>
>
> in the about example 1, 10 would be displayed larger than the other
> data points. Could someone give me some assistance with this problem
A couple of simple approaches:
x <- c(1,1,2,4,9)
y <- c(10,10,3,5,8)
plot(jitter(x), jitter(y))
plot(x, y, cex=c(2,2,1,1,1))
> 757-864-7114
> LARC/J.L.Shipman/jshipman
> Jeffery.L.Shipman at nasa.gov
__
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] duplicate data points on a line graph
LARC/J.L.Shipman/jshipman wrote: > > I am new to R plot. I am trying to increase the data point > observation when duplicate data points exist > > x y > 1 10 > 1 10 > 2 3 > 4 5 > 9 8 > > in the about example 1, 10 would be displayed larger than the other > data points. Could someone give me some assistance with this problem > Not exactly what you want, but ?sunflowerplot might come close. Dieter -- View this message in context: http://www.nabble.com/duplicate-data-points-on-a-line-graph-tp24503299p24503357.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.
Re: [R] duplicate data points on a line graph
On 7/15/2009 2:19 PM, NDC/jshipman wrote: > Hi, > I am new to R plot. I am trying to increase the data point > observation when duplicate data points exist > > xy > 110 > 110 > 23 > 45 > 9 8 > > > in the about example 1, 10 would be displayed larger than the other > data points. Could someone give me some assistance with this problem A couple of simple approaches: x <- c(1,1,2,4,9) y <- c(10,10,3,5,8) plot(jitter(x), jitter(y)) plot(x, y, cex=c(2,2,1,1,1)) > 757-864-7114 > LARC/J.L.Shipman/jshipman > jeffery.l.ship...@nasa.gov > > __ > 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. -- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894 __ 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] duplicate data points on a line graph
Alternatively, you could make use of transparency (on some devices), or use
ggplot2 to map the number of observations to the point size,
d =
read.table(textConnection("
x y
1 10
1 10
2 3
4 5
9 8
"),head=T)
library(ggplot2)
# transparency
qplot(x, y, data=d, alpha=I(0.5))
d2 = unique(ddply(d,.(x,y), transform, count=length(x)))
# mapping number of obs.
qplot(x, y, data=d2,size=count)
HTH,
baptiste
2009/7/15 Chuck Cleland
> On 7/15/2009 2:19 PM, NDC/jshipman wrote:
> > Hi,
> > I am new to R plot. I am trying to increase the data point
> > observation when duplicate data points exist
> >
> > xy
> > 110
> > 110
> > 23
> > 45
> > 9 8
> >
> >
> > in the about example 1, 10 would be displayed larger than the other
> > data points. Could someone give me some assistance with this problem
>
> A couple of simple approaches:
>
> x <- c(1,1,2,4,9)
>
> y <- c(10,10,3,5,8)
>
> plot(jitter(x), jitter(y))
>
> plot(x, y, cex=c(2,2,1,1,1))
>
> > 757-864-7114
> > LARC/J.L.Shipman/jshipman
> > jeffery.l.ship...@nasa.gov
> >
> > __
> > 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.
>
> --
> Chuck Cleland, Ph.D.
> NDRI, Inc. (www.ndri.org)
> 71 West 23rd Street, 8th floor
> New York, NY 10010
> tel: (212) 845-4495 (Tu, Th)
> tel: (732) 512-0171 (M, W, F)
> fax: (917) 438-0894
>
> __
> 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.
>
[[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] duplicate data points on a line graph
On 7/15/2009 9:56 PM, Carl Witthoft wrote:
> If you want to take the second approach, it can be relatively easily
> generalized by calculating the cex values based on the count of ordered
> pairs in the original dataset.
>
> Here's a data set:
>> xy
> x y
> [1,] 1 4
> [2,] 1 5
> [3,] 2 3
> [4,] 3 3
> [5,] 4 5
> [6,] 5 2
> [7,] 1 4
> [8,] 2 3
>
> Here's the same set fully sorted:
>
> xy[order(x,y),]->xyord
> x y
> [1,] 1 4
> [2,] 1 4
> [3,] 1 5
> [4,] 2 3
> [5,] 2 3
> [6,] 3 3
> [7,] 4 5
> [8,] 5 2
>
> There's gotta be some very simple way to create a series of values for
> cex but I'm missing it, other than a loop like
>
> cexvec<-rep(1,8)
> for i in 2:8 {
> if (xyord[i,1]==xyord[i-1,1] & xyord[i,2]== xyord[i-1,2] ) {
>
> cexvec[i]<-cexvec[i-1]+1
> }
> }
How about using ave() like this:
x <- sample(0:4, 60, replace=TRUE)
y <- sample(0:4, 60, replace=TRUE)
xy <- data.frame(x, y)
xy$freq <- ave(xy$x, x, y, FUN=length)
with(xy, plot(x, y, cex=freq))
> You get the idea, sort of :-)
>
> Carl
>
>
> On 7/15/2009 2:19 PM, NDC/jshipman wrote:
>> Hi,
>> I am new to R plot. I am trying to increase the data point
>> observation when duplicate data points exist
>>
>> xy
>> 110
>> 110
>> 23
>> 45
>> 9 8
>>
>>
>> in the about example 1, 10 would be displayed larger than the other
>> data points. Could someone give me some assistance with this problem
>
> A couple of simple approaches:
>
> x <- c(1,1,2,4,9)
>
> y <- c(10,10,3,5,8)
>
> plot(jitter(x), jitter(y))
>
> plot(x, y, cex=c(2,2,1,1,1))
>
>> 757-864-7114
>> LARC/J.L.Shipman/jshipman
>> Jeffery.L.Shipman at nasa.gov
>
> __
> 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.
--
Chuck Cleland, Ph.D.
NDRI, Inc. (www.ndri.org)
71 West 23rd Street, 8th floor
New York, NY 10010
tel: (212) 845-4495 (Tu, Th)
tel: (732) 512-0171 (M, W, F)
fax: (917) 438-0894
__
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] duplicate data points on a line graph
NDC/jshipman wrote: Hi, I am new to R plot. I am trying to increase the data point observation when duplicate data points exist xy 110 110 23 45 9 8 in the about example 1, 10 would be displayed larger than the other data points. Could someone give me some assistance with this problem Hi Jeffery, Have a look at sizeplot, cluster.overplot and count.overplot in the plotrix package. 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.
