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Re: Plotting uncertainties

Martin Skou Andersen wrote:

> IDL> plot, x, y, psym=1
> But is there away to get uncertainties on my data?

Beisdes the standard IDL procedures already mentioned (e.g. PLOTERR,
ERRPLOT) you might want to look at PLOTERROR and OPLOTERROR in
http://idlastro.gsfc.nasa.gov/ftp/pro/plot/.     These are built on the
standard PLOTERR and OPLOTERR routines but have additional options, such
as both X and Y errors, _EXTRA facility, NAN value recogntion, plotting
only every nth error bar,  and the NSUM keyword.