C Coefficient Vector and state space models

[mandix]

Just a simple general question.
How does one change the C coefficient vector?
(I am working with state space models.)

Bonus question: say you run a state space model for the first time - you get "reasonable" results.
Then you run it again. And you get this annoying "singular matrix" message.
Was it because the *starting* C coefficient vector was *different* than the first time, and thus the starting values for the C vector was different?

Bonus question 2: is this (C coefficient vector and state space models) discussed in the User Guides?

Thanks so much to all, Manfred

[EViews Gareth]

You can double click on the C vector to open it up, then change any value you want.

The C vector is updated every time any sort of estimation is done, so yes, running an estimation once then re-running it might have odd results because the starting values could be different.

Appendix B of User Guide II has information on the C(oefficient) vector and its use for starting values.

[mandix]

Thanks Gareth.
He came, he saw, he estimated (I actually looked it up! Google Translate is a great thing....)