ApolloChoiceModelling forum

Dear all,

I ran my model (LCNL) and calculated the WTP using apollo_deltaMethod. Now I want to obtain the 95% confidence intervals for each estimated parameter and the WTP values, but I don't know how to calculate them.

Could you please give me an example (code syntax)? Many thanks!


Best wishes,
Chunyu Song.

Hi Chunyu

sorry for the slow response.

you can calculate asymptotic confidence intervals by the simple formula

estimate +- 1.96 * standard error

You can do this directly for estimates, and for things like WTP, you can get the value and standard error using apollo_deltaMethod and then apply the formula above

Stephane