[R] plot probability density function (pdf)

[R. Michael Weylandt]

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 <glorykwok at hotmail.com> 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?
>
>
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