[R] how to plot two variables in a figure using ggplot2
Greetings!
You don't specify what type of "figure" you're looking for...here are two
possibilities to get you started:
As a note, it would have made things slightly easier if you had used dput() to
provide the data to us. It took a little massaging in notepad before getting it
into R.
#Read data from clipboard after removing blank line and column numbers in
notepad...
mydata <- read.table(file="clipboard", sep=" ", header =TRUE)
str(mydata)
#Restructure the data to long for ggplot2...there are other ways to do this,
also.
mydata2 <- data.frame(group=rep(c("OA","KA"), each=9), xvar=rep(mydata$XX,
times=2), yvar=c(mydata$OA, mydata$KA))
#Look at format of the data
mydata2
#Now to the plotting...
require(ggplot2)
#You might want a barplot...
plot1 <- ggplot(data=mydata2, aes(x=xvar, y=yvar,group=group, fill=group)) +
geom_bar(stat="identity", position="dodge") + ggtitle("Barchart of OA and KA")
plot1
#..or you might want a lineplot...
plot2 <-ggplot(data=mydata2, aes(x=xvar, y=yvar, group=group, colour=group)) +
geom_line() + ggtitle("Linechart of OA and KA")
plot2
The line chart is very easy to do in ggplot2 even if you don't restructure the
data to long format, if that is what you were looking for.
Hope this helps and best regards!
Jim Gullen, Ph.D
Higher Education Data Reporting Consultant
Office of Professional Preparation Services
Michigan Department of Education
Customer Service is a priority at the Michigan Department of Education -
helping Michigan schools, families, and communities improve the achievement and
well-being of ALL our children.
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Re: [R] how to plot two variables in a figure using ggplot2
Please have a look at http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example and/or http://adv-r.had.co.nz/Reproducibility.html for some general suggestions on posting here. In particular have a look at dput() or do a ?dput in R for the best way to supply sample data. To do the plot you want you will need to reshape your data from “wide” format to “long” and then plot it with ggplot2 See ?melt in the reshape2 package for how to reshape the data. Normally you would use the “colour” option to separately plot the two lines so something like should do it. ggplot(mydata, aes( XX, value, colour = variable)) + some.plot.option. John Kane Kingston ON Canada > -Original Message- > From: jimmygao0...@163.com > Sent: Tue, 15 Dec 2015 21:41:25 +0800 (CST) > To: r-help@r-project.org > Subject: [R] how to plot two variables in a figure using ggplot2 > > Hi everyone, > > Now,I want to use the following data to produce a figure.But I don't know > how to do it.Is anyone have some experiences? > > X axis using variable XX and Y axis using variable OA and KA > > XX OA KA > > 1 1243 0.8157 0.7790 > 2 2486 0.8190 0.7829 > 3 3729 0.8278 0.7934 > 4 4972 0.8354 0.8026 > 5 6215 0.8475 0.8140 > 6 7458 0.8530 0.8224 > 7 8701 0.8668 0.8301 > 8 9944 0.8790 0.8540 > 9 11187 0.8990 0.8790 > > > Thank you very much. > Jimmy > > > > > > > > > > > > > > > > > [[alternative HTML version deleted]] > > __ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. TRY FREE IM TOOLPACK at http://www.imtoolpack.com/default.aspx?rc=if5 Capture screenshots, upload images, edit and send them to your friends through IMs, post on Twitter®, Facebook®, MySpace™, LinkedIn® – FAST! __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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] how to plot two variables in a figure using ggplot2
You can also do this with matplot() which does not require reshaping the data.
Assuming your data is a data frame called dat:
> dput(dat)
structure(list(XX = c(1243L, 2486L, 3729L, 4972L, 6215L, 7458L,
8701L, 9944L, 11187L), OA = c(0.8157, 0.819, 0.8278, 0.8354,
0.8475, 0.853, 0.8668, 0.879, 0.899), KA = c(0.779, 0.7829, 0.7934,
0.8026, 0.814, 0.8224, 0.8301, 0.854, 0.879)), .Names = c("XX",
"OA", "KA"), class = "data.frame", row.names = c("1", "2", "3",
"4", "5", "6", "7", "8", "9"))
> matplot(dat$XX, dat[, 2:3], type="l", xlab="XX", ylab="OA & KA")
> legend("topleft", c("OA", "KA"), col=1:2, lty=1:2)
-
David L Carlson
Department of Anthropology
Texas A University
College Station, TX 77840-4352
-----Original Message-----
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of John Kane
Sent: Wednesday, December 16, 2015 9:32 AM
To: JimmyGao; r-help mailing list
Subject: Re: [R] how to plot two variables in a figure using ggplot2
Please have a look at
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
and/or http://adv-r.had.co.nz/Reproducibility.html for some general
suggestions on posting here. In particular have a look at dput() or do a ?dput
in R for the best way to supply sample data.
To do the plot you want you will need to reshape your data from “wide” format
to “long” and then plot it with ggplot2
See ?melt in the reshape2 package for how to reshape the data.
Normally you would use the “colour” option to separately plot the two lines so
something like should do it.
ggplot(mydata, aes( XX, value, colour = variable)) + some.plot.option.
John Kane
Kingston ON Canada
> -Original Message-
> From: jimmygao0...@163.com
> Sent: Tue, 15 Dec 2015 21:41:25 +0800 (CST)
> To: r-help@r-project.org
> Subject: [R] how to plot two variables in a figure using ggplot2
>
> Hi everyone,
>
> Now,I want to use the following data to produce a figure.But I don't know
> how to do it.Is anyone have some experiences?
>
> X axis using variable XX and Y axis using variable OA and KA
>
> XX OA KA
>
> 1 1243 0.8157 0.7790
> 2 2486 0.8190 0.7829
> 3 3729 0.8278 0.7934
> 4 4972 0.8354 0.8026
> 5 6215 0.8475 0.8140
> 6 7458 0.8530 0.8224
> 7 8701 0.8668 0.8301
> 8 9944 0.8790 0.8540
> 9 11187 0.8990 0.8790
>
>
> Thank you very much.
> Jimmy
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> [[alternative HTML version deleted]]
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
TRY FREE IM TOOLPACK at http://www.imtoolpack.com/default.aspx?rc=if5
Capture screenshots, upload images, edit and send them to your friends
through IMs, post on Twitter®, Facebook®, MySpace™, LinkedIn® – FAST!
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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] how to plot two variables in a figure using ggplot2
Hi everyone, Now,I want to use the following data to produce a figure.But I don't know how to do it.Is anyone have some experiences? X axis using variable XX and Y axis using variable OA and KA XX OA KA 1 1243 0.8157 0.7790 2 2486 0.8190 0.7829 3 3729 0.8278 0.7934 4 4972 0.8354 0.8026 5 6215 0.8475 0.8140 6 7458 0.8530 0.8224 7 8701 0.8668 0.8301 8 9944 0.8790 0.8540 9 11187 0.8990 0.8790 Thank you very much. Jimmy [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
