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MPFIT2DFUN- use for a time series of images? [message #75507]

Thu, 10 March 2011 12:01

Katie[1]
Messages: 2
Registered: March 2011

Junior Member

I want to fit pixel values to a logistic model that each have X, Y
coordinates and a day of the year value associated with them. I see
from the MPFIT2DFUN documentation how to define X, Y for a each Z
dependent value and the dependent error value, but can a third
variable (day of the year in this case) be defined in order to fit a
curve in MPFIT2DFUN? I currently have each each date as a separate
band in a stacked image file that I exported as an ASCII file. I want
to determine the day of the year that the pixel values (vegetation
indices) reach a value on the the curve.

Any suggestions, or perhaps I am not understanding the MPFIT2DFUN
correctly (I am very new to IDL)?

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[Message index]

		MPFIT2DFUN- use for a time series of images? By: Katie[1] on Thu, 10 March 2011 12:01
		Re: MPFIT2DFUN- use for a time series of images? By: rajen.water on Fri, 14 February 2014 11:47
		Re: MPFIT2DFUN- use for a time series of images? By: Craig Markwardt on Fri, 14 February 2014 21:56

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