How to plot multiple datasets

matplot(x, cbind(y1, y2, y3), ylab="y", col=c("black", "red",

matplot(x, cbind(y1, y2, y3), ylab="y", col=c("black", "red",

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Rui Barradas
Sent: Thursday, January 03, 2013 12:54 PM
To: Bruce Kindseth
Cc: r-help at r-project.org
Subject: Re: [R] How to plot multiple datasets

Hello,

You shuld provide a data example, but see if the following is what you
are looking for.

x <- 1:10
y1 <- rnorm(10)
y2 <- rnorm(10)
y3 <- rnorm(10)

# One way
plot(x, y1, ylim = range(c(y1, y2, y3)))
points(x, y2, col = "red")
points(x, y3, col = "blue")

# Another way
plot(x, y1, ylim = range(c(y1, y2, y3)), type = "l")
lines(x, y2, col = "red")
lines(x, y3, col = "blue")


Hope this helps,

Rui Barradas
Em 03-01-2013 16:39, Bruce Kindseth escreveu:

Good Morning,

I have 3 sets of data, all with the same horizontal axis but with

varying

vertical input.  I want to plot all 3 sets on one x-y plot.  I can

get 3

linear regression plots and 3 polynomial regression plots on the same

chart

but I have not been able to get more than one set of input data on

the same

chart.  Can you help me?

Thank you for all that you do to provide R to the public.

Bruce Kindseth

Narragansett, RI


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