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Search found 3 matches

by Han84
06 Mar 2023, 12:52
Forum: Errors during model validation and/or estimation.
Topic: Error when weight column is added in an error-component logit model
Replies: 5
Views: 1620

Re: Error when weight column is added in an error-component logit model

Sorrily I am not allowed to share the data set since it belongs to a company.
by Han84
06 Mar 2023, 12:03
Forum: Errors during model validation and/or estimation.
Topic: Error when weight column is added in an error-component logit model
Replies: 5
Views: 1620

Re: Error when weight column is added in an error-component logit model

Hi Stephane

Even by putting weights equal to one, there is an error. (my estimation routine is "BHHH" in this re-estimation and not "BFGS")

Code: Select all

Error in maxNRCompute(fn = function (theta, fnOrig, gradOrig = NULL, hessOrig = NULL,  : 
  NA in gradient
Mehdi
by Han84
01 Mar 2023, 11:08
Forum: Errors during model validation and/or estimation.
Topic: Error when weight column is added in an error-component logit model
Replies: 5
Views: 1620

Error when weight column is added in an error-component logit model

Dear Apollo Team, I have a problem with adding weight to my estimation. I am estimating a mode choice model of error-components logit type in a panel data set. Without weights, I have no problems and estimation results are produced. When I want the model to consider weights I will encounter this err...