Hello

I have been trying to access the dissimilarity (tau) parameters generated by nlogit, with no success. The part of the output I am trying to access via code looks like this:

Array

In particular, I wanted to access the [publicopr_tau] parameter.

I read the relevant sections of the manuals, noting the advice on accessing paramters of models with multiple equations, and tried many things, but none of them worked. Some of the things I tried are shown below (all of these produced an error):

Code:
display _b[publicopr_tau]
display _b[tau_publicopr_tau]
display _b[tipomodo_prpd2:publicopd_tau]
display _b[tipomodo_prpd2_publicopd_tau]
display [publicopd_tau]
display [publicopd_tau]
display _b[publicopd_tau]
display _b[tipomodo_prpd2/publicopd_tau]
display _b[tipomodo_prpd2:publicopd_tau]
display _b[publicopr_tau]
display _b[publicopr]
display _b[tau_publicopr]
display _b[tipomodo_prpd2#publicopd_tau]
display _b[tipomodo_prpd2.publicopd_tau]
display _b[tipomodo_prpd2]
display _b[tipomodo_prpd2/publicopr_tau]
display _b[tipomodo_prpd2_publicopr_tau]
display _tau[publicopr]
display [tipomodo_prpd2]_b[publicopr_tau]
display tipomodo_prpd2_b[publicopr_tau]
display [1]_b[publicopr_tau]
display [2]_b[publicopr_tau]
display [3]_b[publicopr_tau]
display tipomodo_prpd2_b[publicopr_tau]
display (tipomodo_prpd2)_b[publicopr_tau]
display [tipomodo_prpd2]publicopr_tau
display [tipomodo]publicopr_tau
display [#1]publicopr_tau
display [#2]publicopr_tau
display [tipomodo_prpd2][publicopr_tau]
display [tipomodo_prpd2]publicopr_tau
display [tipodatos_prpd]publicopr_tau
display [tipomodo_prpd2]autochopr_tau
display [#1]autochopr_tau
display [#2]autochopr_tau
display [#3]autochopr_tau
display [tipodatos_prpd]pr_tau
display [modo_prpd]pr_tau
display [#1]pr_tau
display [#2]pr_tau
display [#3]pr_tau
display _b[tipomodo_prpd2:publicopr_tau]
display _b[modo_prpd:publicopr_tau]
display _b[publicopr_tau]
display _b[publicopr:tau]
display _b[publicopr:_tau]
display _b[modo_prpd:tipomodo_prpd2:publicopr_tau]
If anyone could clarify how to access these parameters I would be very grateful.

Kind regards

Alex Mitrani