Plot of multiple data sets

On 9/7/05, St??phane Mattei <stephane.mattei at epfl.ch> wrote:

Hello !


There is something quite simple I want to do with R but I found nowhere in the help how to do

it.

I just want to plot data which are in a matrix, every column being a data set and having the

same

x-axis (just an index).

So for example if I have a 50 x 6 matrix I want 6 set of points on the same plot.

I tried
plot,new()
plot(MATRIX[,1])
plot(MATRIX[,2])
...

but it replaces the previous plot each time.

Others have already mentioned matplot, lines and points but just to add
to the list, if your problem is a time series then you could also use
plot.zoo:
library(zoo)
z <- zoo(MATRIX, x)
plot(z, plot.type ="single")  # one plot
plot(z) # separate plots