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Thread Subject:
problem using resid

Subject: problem using resid

From: pietro

Date: 27 May, 2009 14:36:03

Message: 1 of 1


i have to validate a estimated arx model. I try to use resid command but it gives me the following error:

the resid returns me the following error:

??? Error using ==> utresid at 199
Resid cannot be applied to Continuous Time data.

Error in ==> idmodel.resid at 54

I use resid command in this way:

modarx=arx(hpidfrd,[num+1 den])

fp: frequency value
hp: complex transfer function value
num e den: arx model orders

How can i perform a residual analysis with Continuous Time data?

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