Stability tests under system estimation

[cel]

I've been using various non-linear system estimation estimators in eviews, but the estimation output doesn't appear to support parameter stability diagnostics. Am i right in that? If so, is there anything i can do to somehow look at parameter stability under non-linear systems estimation. Thanks.

[EViews Gareth]

You are correct in that there is nothing built in.

[EViews Glenn]

An informal stability diagnostic would be to estimate for increasing sample sizes or rolling windows. If you search for rolling estimation in the forum you'll find lots of discussion.