Message-ID: <20091103144909.j4vdd0qlcg4csg08@www.staffmail.ed.ac.uk>
Date: 2009-11-03T14:49:09Z
From: J.delasHeras at ed.ac.uk
Subject: how to display a string containing greek chrs and variables
I'm trying something that I thought would be pretty simple, but it's
proving quite frustrating...
I want to display, for instance, the correlation coefficient "rho" in a graph.
I can do something like:
text(x, y, paste("rho =", cor))
where cor would be my previously calculated correlation coefficient,
and x and y the coordinates.
Obviously that displays "rho", not the greek letter rho.
I can do also this:
text(x, y, paste("\\*r =",cor), vfont = c("sans serif","bold"))
that works, but that doesn't look very "pretty".
What looks good is doing something like:
text(x, y, expression(rho))
But I haven't managed to make it do what I need.
I can get this:
text(x, y, expression(rho == 0.8))
that looks good, but how can I substitute the "0.8" for teh name of a
numeric variable whose value is 0.8?
I'm going slightly mad... it can't be that hard.
Thanks for any help!
Jose
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Dr. Jose I. de las Heras Email: J.delasHeras at ed.ac.uk
The Wellcome Trust Centre for Cell Biology Phone: +44 (0)131 6513374
Institute for Cell & Molecular Biology Fax: +44 (0)131 6507360
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University of Edinburgh
Edinburgh EH9 3JR
UK
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