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Re: manipulating structures [message #53369 is a reply to message #53360] Sat, 07 April 2007 07:33 Go to previous messageGo to previous message
Kenneth P. Bowman is currently offline  Kenneth P. Bowman
Messages: 585
Registered: May 2000
Senior Member
In article <MPG.2080e60786ec3c36989f18@news.frii.com>,
David Fanning <news@dfanning.com> wrote:

> Ken's explanation is absolutely correct, but if it is
> really just the plotting of the data that is causing
> you problems, I'd forget about NANs and just use the
> MAX_VALUE keyword to set a value less than the "missing"
> value.
>
> PLOT, data, MAX_VALUE=999999.0 - 1

This is true, but using "special numbers" to indicate missing data
is rife with the possibility using the missing value as valid
data with noticing it. I'm a big advocate of using NaNs
because they ensure that if you use them by mistake, your result
will be a NaN (which is usually hard to ignore :-) ).

Ken

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