comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Gradient Function

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

Gradient Function [message #6204]

Mon, 20 May 1996 00:00

jyoung
Messages: 5
Registered: May 1996

Junior Member

I am new to IDL and I am looking for a function that might speed
up a procedure I am working on. I have a two dimensional array that has
some data points mostly low values, but in places it jumps rather quickly
to high values. I want to put zeros at the constant places and ones at
the quick changes.
It was suggested to me that I should try some kind of gradient
function. I can probably create my own for IDL, but I wanted to know if
there was any kind of function that might help in my efforts. I think the
DERIV function might help, but maybe there is a more powerful function to
examine these changes within the array.
Lastly what I have created causes a shift of the data by 1 element
in the new array...any suggestions on how to fix this?

Jason Young
EPSCoR Research Assistant
W.V.I.T.
Montgomery, WV 25136

phone: 304-442-1021

e-mail: jyoung@olie.wvitcoe.wvnet.edu

Report message to a moderator

[Message index]

		Gradient Function By: jyoung on Mon, 20 May 1996 00:00
		Re: Gradient Function By: ralfu on Tue, 21 May 1996 00:00

Previous Topic:	command (batch) files
Next Topic:	3D scatter plots

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Nov 29 04:43:39 PST 2025

Total time taken to generate the page: 0.16319 seconds