plot probability density function (pdf)

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plot probability density function (pdf)

 I have 2 series of variables, I want to plot the probability density function of these 2 variabels (i.e. two curves in one graph), I just want to compare these two variable distribution. what should I do? can I use ggplot2 package?
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Re: plot probability density function (pdf)

 x=rnorm(100,1,0.8) # A series. y=rnorm(100,0,0.5) # Another series with different mean and variance. plot(density(x),ylim=c(0,1)) lines(density(y),col="red") Remember that density() is a nonparametric estimator. You should properly choose the bandwith. Juan David Ospina Arango School of Statistics Universidad Nacional de Colombia, Colombia Laboratoire de Traitement du Signal et de l'Image Université de Rennes 1, France
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Re: plot probability density function (pdf)

 however, if i have an excel file, but there have 6 variables, a,b,c,d,e,f. how to plot the probability density function of a and d in one graph, b and e in another graph?
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Re: plot probability density function (pdf)

 x11() plot(density(a)) lines(density(d)) x11() plot(density(b)) lines(density(e)) 2011/10/12 pigpigmeow [via R] <[hidden email]>: > however, if i have an excel file, but there have 6 variables, a,b,c,d,e,f. > > > how to plot the probability density function of a and d in one graph, b and > e in another graph? > > > ________________________________ > If you reply to this email, your message will be added to the discussion > below: > http://r.789695.n4.nabble.com/plot-probability-density-function-pdf-tp3897055p3898183.html> To unsubscribe from plot probability density function (pdf), click here. -- Juan David Ospina Arango Juan David Ospina Arango School of Statistics Universidad Nacional de Colombia, Colombia Laboratoire de Traitement du Signal et de l'Image Université de Rennes 1, France
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Re: plot probability density function (pdf)

 This post was updated on . x11() what does it mean? if my data has missing value, can I plot the graph? the missing data is shown "NA", how to handle it and plot pdf?
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Re: plot probability density function (pdf)

 i want to plot probability density function,predictvalue has missing value and observevalue has not missing value, I tried .. attach(test) #test is the name of the data file names(test) plot(density(predictvalue,na.rm=TRUE)) lines(density(observevalue)) is it correct?
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Re: plot probability density function (pdf)

 In reply to this post by pigpigmeow Assuming you mean you want them on the same device: layout(1:2) plot(density(a)) lines(density(d),col=2) plot(density(b)) lines(density(e),col=2) Getting your data into R is more of a challenge, but if you want my unsolicited advice, you can do far worse than saving as CSV and using read.csv() Michael On Wed, Oct 12, 2011 at 10:31 AM, pigpigmeow <[hidden email]> wrote: > however, if i have an excel file, but there have 6 variables, a,b,c,d,e,f. > > > how to plot the probability density function of a and d in one graph, b and > e in another graph? > > > -- > View this message in context: http://r.789695.n4.nabble.com/plot-probability-density-function-pdf-tp3897055p3898183.html> Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > [hidden email] 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. > ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.