[R] abline; setting plot limits

[David L Carlson]

You can also use clip() before abline():

> x <- rnorm(25)
> y <- rnorm(25)
> plot(y~x)
> clip(min(x), max(x), min(y), max(y))
> abline(lm(y~x))

But the clipping region will affect anything else you add to the plot after the clip command. In package plotrix, ablineclip() sets and resets the clipping region.

David Carlson

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Duncan Murdoch
Sent: Sunday, June 15, 2014 10:55 AM
To: Paul Rydelek; r-help at r-project.org
Subject: Re: [R] abline; setting plot limits

On 14/06/2014, 11:34 PM, Paul Rydelek wrote:
> Relatively new user with a question regarding abline.
> 
> I want to draw a st. line fit to some data but I want the line to span 
> the range of the x-data and NOT the plot limits.
> In short the line spans xmin to xmax(of plot axis) but I want it to 
> span xmin to xmax (of x data).
> Can this but done with abline or do I have to use lines and construct 
> the line from a+bx?

You can use lines() or segments(), you can't use abline().

Duncan Murdoch

> 
> 
> Paul Rydelek, Ph.D.
> 5232 Dorset Dr.
> Memphis, TN  38117
> 
> 
> 
> 
> 
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.