Hi,
1. I tried removing the 'interface' indicator (one coming with blown up value for the updated specification) but it did not solve the problem. Now the other indicator is producing a blown up value. Is it happening because of some spurious correlation? - lil confused because factor analysis or ...
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Search found 5 matches
- 26 Apr 2023, 10:33
- Forum: Errors during model validation and/or estimation.
- Topic: ICLV model convergence
- Replies: 9
- Views: 9533
- 25 Apr 2023, 17:21
- Forum: Errors during model validation and/or estimation.
- Topic: ICLV model convergence
- Replies: 9
- Views: 9533
Re: ICLV model convergence
Hi,
its a SP choice model where the choices were made in 3 stages. 1st stage includes choice made between 3 modes (car, taxi, ride-hailing) while 2nd stage includes choice made between other 3 modes (bus, metro, auto-rickshaw). Finally respondents made final choice from two chosen alternatives in ...
its a SP choice model where the choices were made in 3 stages. 1st stage includes choice made between 3 modes (car, taxi, ride-hailing) while 2nd stage includes choice made between other 3 modes (bus, metro, auto-rickshaw). Finally respondents made final choice from two chosen alternatives in ...
- 25 Apr 2023, 12:51
- Forum: Errors during model validation and/or estimation.
- Topic: ICLV model convergence
- Replies: 9
- Views: 9533
Re: ICLV model convergence
Hi Stephane,
Apologies. I tried to simplify the model reducing number of variables but the problem still persists (with "rhsatt_interface").
I am attaching the results for the updated code. Please have a look.
Thanks!
Result:
Model run by eurg using Apollo 0.2.8 on R 4.2.1 for Linux.
www ...
Apologies. I tried to simplify the model reducing number of variables but the problem still persists (with "rhsatt_interface").
I am attaching the results for the updated code. Please have a look.
Thanks!
Result:
Model run by eurg using Apollo 0.2.8 on R 4.2.1 for Linux.
www ...
- 25 Apr 2023, 09:49
- Forum: Errors during model validation and/or estimation.
- Topic: ICLV model convergence
- Replies: 9
- Views: 9533
Re: ICLV model convergence
Hi,
yes, the error happens in the second stage estimation.
Please find the code below.
Best,
Eeshan
Code:::
# ################################################################# #
#### LOAD LIBRARY AND DEFINE CORE SETTINGS ...
yes, the error happens in the second stage estimation.
Please find the code below.
Best,
Eeshan
Code:::
# ################################################################# #
#### LOAD LIBRARY AND DEFINE CORE SETTINGS ...
- 04 Apr 2023, 10:33
- Forum: Errors during model validation and/or estimation.
- Topic: ICLV model convergence
- Replies: 9
- Views: 9533
ICLV model convergence
Hi Stephane and David,
I am working on an ICLV model which has been running into convergence errors. The error message:
Error in maxOptim(fn = fn, grad = grad, hess = hess, start = start, method = "BFGS", :
NA in the initial gradient
I tried with scaleAfterConvergence=False, which results in ...
I am working on an ICLV model which has been running into convergence errors. The error message:
Error in maxOptim(fn = fn, grad = grad, hess = hess, start = start, method = "BFGS", :
NA in the initial gradient
I tried with scaleAfterConvergence=False, which results in ...