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Re: percent disagreement [message #70050]

Sat, 06 March 2010 15:08

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Mar 6, 7:58 am, "skymaxw...@gmail.com" <skymaxw...@gmail.com>
wrote:
> I'm searching for "percent disagreement" in IDL. It's not included in
> IMSL library (IDL Analyst) :(
> any others IDL statistics libraries in Internet ?
>

It is not in a library because it would take more effort to call such
a function than to do the computation directly.

Given a "truth value" x1 and a measurement x2, the percent
disagreement is 100*abs(x1-x2)/x1

If you don't have "truth value" but two measurements x1 and x2, then
replace the denominator by the best estimate of the truth

= (x1 + X2)/2.

--Wayne

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