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Re: Running Kalman filter with initial data

Posted: Fri Aug 06, 2010 10:32 am
by king_luca
I have 2 other, maybe silly, questions : are the results of the estimation for the coefficient c(1) to c(8) in percent ? and how can I constraint the coefficient c(1) to c(8) to be positiv ?

Thank you for all your help

Re: Running Kalman filter with initial data

Posted: Fri Aug 06, 2010 10:38 am
by startz
I have 2 other, maybe silly, questions : are the results of the estimation for the coefficient c(1) to c(8) in percent ? and how can I constraint the coefficient c(1) to c(8) to be positiv ?

Thank you for all your help
The coefficients are just straight numbers, not percents.

The standard technique to get a positive result is to replace a coefficient with exp(coefficient). But you seem to have already done that, so it's unlikely that you want to further constrain the coefficients.

Re: Running Kalman filter with initial data

Posted: Thu May 03, 2018 12:25 am
by manthonisz
Hello,

I have specified initial conditions also and was able to successfully run the state space equation once. However, when I tried to repeat the feat I got an error saying "Missing value found in state innovation vector." I'm not sure I consciously changed anything so would appreciate any thoughts as to what may have happened. Thanks guys!

Michael Anthonisz