[R] multiple plots on same x axis

Petr Pikal petr.pikal at precheza.cz
Thu Sep 29 11:58:09 CEST 2005


You can use e.g. plot - points construction

plot(Day, gene1)
points(Day, gene2, col=2)


You also need to set appropriate y range by ylim argument to first 
plot. And if you used search facility in CRAN and asked it

multiple plots on same x axis

you would have got many other posibilities for your question.


On 27 Sep 2005 at 15:34, IAIN GALLAGHER wrote:

Date sent:      	Tue, 27 Sep 2005 15:34:53 +0100 (BST)
From:           	IAIN GALLAGHER <iaingallagher at btopenworld.com>
To:             	r-help at stat.math.ethz.ch
Subject:        	[R] multiple plots on same x axis

> Hi.
> I have two vectors of gene expression for each of
> several days. I want to plot both vectors on the same
> plot for a visual representation of up versus down
> regulation. I've tried using add=T but that doesn't
> work. 
> eg
> >plot(Day, gene1)
> >plot(Day, gene2, add=T)
> Any help would be appreciated.
> Iain
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Petr Pikal
petr.pikal at precheza.cz

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