On 16/06/14 12:35, Jim Lemon wrote:
On Mon, 16 Jun 2014 08:54:41 AM Rolf Turner wrote:
On 15/06/14 15:34, 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?
A function with this capability was posted by Remko Duursma on
22/1/09. See:
http://article.gmane.org/gmane.comp.lang.r.general/137344/match=ablinepiec
e
cheers,
Rolf Turner
P. S. Jim: Perhaps this function could/should be added to plotrix. If
you are interested, I have written a help file for it.
R. T.
Hi Rolf and others,
In fact Remko contributed that function to plotrix - ablineclip.
Sorry. Wasn't aware of ablineclip(). Actually that function seems to
use a quite different approach from that of ablinepiece(), and to be a
substantial improvement. Thanks for pointing it out to us.
cheers,
Rolf
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