comp.lang.idl-pvwave archive: archive » Re: Finding all max/min of a graph

Home » Public Forums » archive » Re: Finding all max/min of a graph

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Finding all max/min of a graph [message #21697]

Tue, 12 September 2000 05:21

wmc
Messages: 117
Registered: February 1995

Senior Member

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

Report message to a moderator

[Message index]

		Re: Finding all max/min of a graph By: wmc on Tue, 12 September 2000 05:21
		Re: Finding all max/min of a graph By: John-David T. Smith on Mon, 11 September 2000 17:25
		Re: Finding all max/min of a graph By: meron on Mon, 11 September 2000 11:31

Previous Topic:	Bootstrapping / Resampling
Next Topic:	Axis labels

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:11:37 PDT 2025

Total time taken to generate the page: 0.00476 seconds