[R] Legend in plot: symbol for mean and standard deviation

Marco Kienzle m.kienzle at marlab.ac.uk
Mon Feb 24 17:17:03 CET 2003

Dear list,

I am facing the following problem with the legend of a plot that display
the mean and variance of a measurement y as a function of x, the mean
being represented by a dot and the variance by a vertical line.

My problem is that I am unable to display the symbol (dot + vertical
line) in the legend. 

any help is welcome,

Marco Kienzle
Fisheries Research Services
Marine Laboratory
PO Box 101 Victoria Road
Aberdeen AB119DB
United Kingdom
direct: +44 (0) 1224 295421
tel:    +44 (0) 1224 876544 
fax:    +44 (0) 1224 295511

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