Hi all,

I'm attempting to make a quite-specific plot where the axes cross at the
origin and with gridlines for guidance. I've been using ablines to create
the reference lines because I want a lot of control as to where they are
placed on the axis. This command works very well for such control.
However...

These ablines don't seem to work when I specify the origin as 0,0. They go
beyond the x-axis at both ends, rendering a quite ugly graph (and they push
back the y-axis title some).

Behold:

###
x<-c(0,1,2,3,4,5)
y<-c(0,2,4,6,8,10)

plot(x,y, axes=FALSE)
axis(1,at=c(0,1,2,2.5,3,4,5),pos=0)
axis(2,at=c(0,2,4,6,8,10),pos=0)
abline(h=c(1,2,3,4,5))
###

Is there any way for me to specify that these ablines should not go beyond
the y-axis extent? I just want a pretty graph!

Thanks!
Ryan

-- 

Ryan Utz, Ph.D.
Aquatic Ecologist/STREON Scientist
National Ecological Observatory Network

Home/Cell: (724) 272-7769
Work: (720) 746-4844 ext. 2488

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