Message-ID: <408B81B0-855B-46BD-98BE-4FC7676C6934@comcast.net>
Date: 2011-11-01T17:59:07Z
From: David Winsemius
Subject: triangles point left, filled?
In-Reply-To: <239734346.246556.1320138339838.JavaMail.apache@mail21.abv.bg>
On Nov 1, 2011, at 5:05 AM, Martin Ivanov wrote:
> Dear R users,
>
> I want to plot not only triangles point up and triangles point down,
> which is easy using the "pch" argument to "points". I want to plot
> left and right pointing triangles as well. They must be fillable
> with colour.
>
> I browsed a little in the documentation, tried rotating the up and
> down pointing triangles, but of no avail. Any suggestions will be
> appreciated.
> plot(1:10)
> polygon(x=c(1.5,1.6,1.6), y=c(1.5,1.6,1.4))
> polygon(x=c(1.5,1.4,1.4)+1, y=c(1.5,1.6,1.4)+1)
> polygon(x=c(1.5,1.7,1.7)+1, y=c(1.5,1.7,1.3)+2, col="red")
>
> Regards,
> Martin Ivanov
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT