On Wed, 27 Jun 2007, Malcolm J. Currie wrote:
>> which doesn't say where the estimate comes from.
>
> The page I'm looking at says:
>
> "The modal value of all the valid pixels in the NDF array. It is
> estimated from 3 * median - 2 * mean. This is only valid for moderately
> skew distributions."
>
> Are we using "estimate from" differently?
I'm saying "it just seems like a magic formula" so a reference would be
good.
--
Tim Jenness
JAC software
http://www.jach.hawaii.edu/~timj
|