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Search found 11 matches

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by NiluCapgi
23 Aug 2025, 12:28
Forum: Post-estimation analysis/use of results
Topic: how to interpret error term for mdcev?
Replies: 1
Views: 177

how to interpret error term for mdcev?

How to interpret the error (σ) term for mdcev? model performance how to interpret the error term comming to be -.343 (t value -20.09)
by NiluCapgi
23 Aug 2025, 11:23
Forum: Model estimation
Topic: how to simulate the MDCEV probability?
Replies: 1
Views: 192

how to simulate the MDCEV probability?

How to simulate the MDCEV probability?
by NiluCapgi
06 Feb 2025, 05:19
Forum: Post-estimation analysis/use of results
Topic: how to make probability plot in E MDCEV MODEL
Replies: 8
Views: 84230

Re: how to make probability plot in E MDCEV MODEL

Thank you, sir for your valuable answer; however, I still have some doubts
my dependent variables are time taken by the vehicle (l,m,h). So in joint modeling, I have modeled the time to deliver by different types of vehicle. My dependent variable are trip length and other variables. My only concern ...
by NiluCapgi
25 Dec 2024, 05:40
Forum: Post-estimation analysis/use of results
Topic: how to make probability plot in E MDCEV MODEL
Replies: 8
Views: 84230

Re: how to make probability plot in E MDCEV MODEL

Thank you, sir. I still have some doubts. I have attached my predicted values. in this pic we can see the outcomes for car choices are l1,m1,h1, and if I and taking trip distance as an independent variable. How do we make probability plots for trip lengths 0 to 500km for different vehicle types l1 ...
by NiluCapgi
09 Aug 2024, 13:01
Forum: Model estimation
Topic: E mdcev
Replies: 1
Views: 8478

E mdcev

Sir in a E-MDCEV model there are two coefficient matrix
1. Estimated parameters with approximate standard errors from BHHH matrix:
Estimate BHHH se BHH t-ratio (0)
bm 1.14780 0.20237 5.6717
bh 0.65524 0.19768 3.3147


2. Unconstrained optimisation.
Estimates:

Estimates:
Estimate s.e. t.rat.(0 ...
by NiluCapgi
26 Jun 2024, 20:23
Forum: Errors during model validation and/or estimation.
Topic: error in getiing Standarad error of e mdcev model
Replies: 6
Views: 21714

Re: error in getiing Standarad error of e mdcev model

Thank you, sir, i have attached the results of the model and the results have improved. but still I am getting "nan"(I 3-4 places) in some places but in robust standard errors and in t values there is no error. can I continue with the model or do I need to revise the model? please let me know ...
by NiluCapgi
28 May 2024, 13:35
Forum: Post-estimation analysis/use of results
Topic: how to make probability plot in E MDCEV MODEL
Replies: 8
Views: 84230

Re: how to make probability plot in E MDCEV MODEL

sir if i want to plot or calculate the prob change for trip length for Choice L1,M1,H1 how to do?.
by NiluCapgi
25 Apr 2024, 20:09
Forum: Post-estimation analysis/use of results
Topic: how to make probability plot in E MDCEV MODEL
Replies: 8
Views: 84230

Re: how to make probability plot in E MDCEV MODEL

Thank you, sir, for your response.

After running the prediction model with the code

apollo_prediction(
model,
apollo_probabilities,
apollo_inputs,
prediction_settings = list(),

)
by NiluCapgi
23 Apr 2024, 06:54
Forum: Post-estimation analysis/use of results
Topic: how to make probability plot in E MDCEV MODEL
Replies: 8
Views: 84230

how to make probability plot in E MDCEV MODEL

SIR I WAS TRYING EMDCEV MODLES FOR DIFFERENT VEHICLE TYPE AND DISTANCE TRAVELLED. CAR-1 , CAR 2 AND CAR 3 , HOW TO PLOT THEIR PROBABILITIES PLOT WITH DISTANCE TRAVELLED. OR WITH ANY OTHER VARIBLES???

the figure shows five different type of vehicle choice probabilities and their variation with ...
by NiluCapgi
22 Apr 2024, 14:26
Forum: Errors during model validation and/or estimation.
Topic: error in getiing Standarad error of e mdcev model
Replies: 6
Views: 21714

Re: error in getiing Standarad error of e mdcev model

Thank you, and I got the results. one more thing: to ask the parameters dworkschool giving me the substitution effect. how can I add more variables to this?

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