R help - Feb 2001 - interrupted plots

Hello,

I'm trying to plot simple data containing numbers/year.
I use plot(numbers~year, type="l"), but the problem is that there is
no data
for several years. S I would like the line to be interrupted for the period 
without data, and then continue afterwards. How can I do this ?

Also, I've been using par(new=TRUE) to put two curves (same years, different
numbers) on the same plot. Is there a way to do this differently, i.e. easier, 
for example directly in the plot command ?

Moritz

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On Tuesday 20 February 2001 15:05, mlennert at club.worldonline.be wrote:
> Hello,
>
> I'm trying to plot simple data containing numbers/year.
> I use plot(numbers~year, type="l"), but the problem is that there
is no
> data for several years. S I would like the line to be interrupted for the
> period without data, and then continue afterwards. How can I do this ?
I think this is easy: put NA entries into the data vector for those years
>
> Also, I've been using par(new=TRUE) to put two curves (same years,
> different numbers) on the same plot. Is there a way to do this differently,
> i.e. easier, for example directly in the plot command ?

You could use the matplot() command (see help(matplot))

Cheers

Kaspar

-- 


Kaspar Pflugshaupt
Geobotanical Institute
ETH Zurich, Switzerland

http://www.geobot.umnw.ethz.ch
mailto:pflugshaupt at geobot.umnw.ethz.ch
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