Howto Superimpose Multiple Density Curves Into One Plot
It looks like the data has other columnnames than the samplecode you provided. Use colnames(dat) to get the columnnames. Replace V1 with the columnname of the values and V2 with the column name of the ID's. HTH, Thierry ---------------------------------------------------------------------------- ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance Gaverstraat 4 9500 Geraardsbergen Belgium tel. + 32 54/436 185 Thierry.Onkelinx at inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey -----Oorspronkelijk bericht----- Van: Gundala Viswanath [mailto:gundalav at gmail.com] Verzonden: woensdag 2 september 2009 14:33 Aan: ONKELINX, Thierry CC: r-help at stat.math.ethz.ch Onderwerp: Re: [R] Howto Superimpose Multiple Density Curves Into One Plot Hi Thierry, Thanks for the reply. I tried this:
dat <- read.table("http://dpaste.com/88561/plain/")
But I got such error:
ggplot(dat, aes(x = V1, colour = factor(V2))) + geom_density()
Error in density.default(data$x, adjust = adjust, kernel = kernel, weight = data$weight, : need at least 2 points to select a bandwidth automatically
ggplot(dat, aes(x = V1, fill = factor(V2))) + geom_density(alpha = 0.2)
Error in density.default(data$x, adjust = adjust, kernel = kernel, weight = data$weight, : need at least 2 points to select a bandwidth automatically
ggplot(dat, aes(x = V1)) + geom_density() + facet_wrap(~V2)
Error: could not find function "facet_wrap"
ggplot(dat, aes(x = V1, fill = factor(V2))) + geom_density(alpha = 0.2)
Error in density.default(data$x, adjust = adjust, kernel = kernel, weight = data$weight, : need at least 2 points to select a bandwidth automatically
ggplot(dat, aes(x = V1)) + geom_density() + facet_wrap(~V2)
Error: could not find function "facet_wrap" Maybe I miss something? What could possibly go wrong? - Edward
On Wed, Sep 2, 2009 at 8:30 PM, ONKELINX, Thierry<Thierry.ONKELINX at inbo.be> wrote:
Have a look at the ggplot2 package.
library(ggplot2)
dat <- read.table("mydat.txt")
ggplot(dat, aes(x = V1, colour = factor(V2))) + geom_density() #or a
few alternatives ggplot(dat, aes(x = V1, fill = factor(V2))) +
geom_density(alpha = 0.2) ggplot(dat, aes(x = V1)) + geom_density() +
facet_wrap(~V2)
HTH,
Thierry
----------------------------------------------------------------------
--
----
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature
and Forest Cel biometrie, methodologie en kwaliteitszorg / Section
biometrics, methodology and quality assurance Gaverstraat 4 9500
Geraardsbergen Belgium tel. + 32 54/436 185 Thierry.Onkelinx at inbo.be
www.inbo.be
To call in the statistician after the experiment is done may be no
more than asking him to perform a post-mortem examination: he may be
able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data.
~ Roger Brinner
The combination of some data and an aching desire for an answer does
not ensure that a reasonable answer can be extracted from a given body
of data.
~ John Tukey
-----Oorspronkelijk bericht-----
Van: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org]
Namens Gundala Viswanath
Verzonden: woensdag 2 september 2009 12:10
Aan: r-help at stat.math.ethz.ch
Onderwerp: [R] Howto Superimpose Multiple Density Curves Into One Plot
I have a data that looks like this:
http://dpaste.com/88561/plain/
And I intend to create multiple density curve into one plot, where
each curve correspond to the unique ID.
I tried to use "sm" package, with this code, but without success.
__BEGIN__
library(sm)
dat <- read.table("mydat.txt");
plotfn <- ("~/Desktop/flowgram_superimposed.pdf");
pdf(plotfn);
sm.density.compare(dat$V1,dat$V2, xlab = "Flow Signal") colfill <-
c(2:10); legend(locator(1), levels(dat$V2), fill=colfill)
dev.off();
__END__
Please advice what's the right way to do it or if ?there is
alternative way to do it?
I am trying to get this kind of figure:
http://img524.imageshack.us/img524/2736/testl.png
- G.V.
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Druk dit bericht a.u.b. niet onnodig af. Please do not print this message unnecessarily. Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document. The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document.