[R] slanted ends of horizontal lines for certain line widths

[Dimitrios Rizopoulos]

probably you want to look at the `lend' argument of ?par, e.g.,

op <- par(lend = 2)
plot(c(1,2), c(1,1), xlim = c(0,3), lwd = 20, type = "l")
par(op)

I hope it helps.

Best,
Dimitris

---- 
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

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Quoting Robert Offinger <rooff at merkur.math.uni-magdeburg.de>:

> Hello,
> 
> if I plot a horizontal line, e.g.,
> 
>   plot(c(1,2),c(1,1),xlim=c(0,3),lwd=2,type="l")
> 
> or
> 
>   plot(c(1,2),c(1,1),xlim=c(0,3),lwd=4,type="l")
> 
> then the left end (1st example) or both ends (2nd example) of the
> lines
> are not rectangular but slanted on the graphical display (screen).
> That behavour first occurred when I was trying to plot a stepfun,
> e.g.,
> 
> y <- round(rnorm(12),1)
> Fn12 <- ecdf(y)
> plot(Fn12,verticals= FALSE, do.p = FALSE,lwd=2,col.h="red")
> plot(Fn12,verticals= FALSE, do.p = FALSE,lwd=4,col.h="red")
> 
> (lwd=3 seems okay)
> 
> Bug or feature?
> Suggestions? (I don't like the slanted ends but lwd=2 would be
> better
> than lwd=3)
> 
> Robert Offinger
> OvG-Universität Magdeburg
> 
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