Re: Finding all max/min of a graph

[wmc(at)bas.ac.uk]

J.D. Smith <jdsmith@astro.cornell.edu> wrote:
>wmc@bas.ac.uk wrote:
>> I have a graph with about 10 (local) max/mins, I'd like to find them
>> all, objectively. What do I do?

>We had a lengthy debate concerning just this topic a few months ago.  The topic
>was expanded to include n point extrema, but for the simple case of a point
>either less than or greater than both of it's nearest neighbors, you could try:
>wh=where(d ne median(d,3))

For my purposes, Mati Meron's EXTREMA function worked very nicely.

-W.

-- 
William M Connolley | wmc@bas.ac.uk | http://www.nerc-bas.ac.uk/icd/wmc/
Climate Modeller, British Antarctic Survey | Disclaimer: I speak for myself