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Search found 7 matches

by alvinej
06 Jun 2024, 15:37
Forum: Model specification
Topic: How to define the start value of mu and sigma when adding random parameters to the mixed logit model?
Replies: 12
Views: 172983

Re: How to define the start value of mu and sigma when adding random parameters to the mixed logit model?


Hi,

Let's consider five types of distributions and their recommended starting values.

# ################################################################# #
#### DEFINE MODEL PARAMETERS ####
# ################################################################# #

### Vector of parameters ...
by alvinej
06 Jun 2024, 12:22
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis

hi stephane,

i want to calculate wtp with respect to purchase price.

thank you
Alvin
by alvinej
29 May 2024, 17:17
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis



please see the code below


parallel::detectCores()

#### LOAD LIBRARY AND DEFINE CORE SETTINGS ####
# ################################################################# #

### Clear memory
rm(list = ls())

### Load Apollo library
library(apollo)
library(foreach)
library(iterators)
library ...
by alvinej
23 May 2024, 08:46
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis

Hi stephane ,
thank you for such a fast reply,

I'll go through manual for the first two questions,

regarding third question,

at estimates,


Aggregated prediction for model component: Class_1
at MLE Sampled mean Sampled std.dev. Quantile 0.025 Quantile 0.975
alt1 3218 3192 118.9 2967 3390
alt2 ...
by alvinej
23 May 2024, 07:06
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis

Hi stephane,

thank you for your reply,

regarding the first question,
Basically i want to know how to calculate willingness to pay under these 3 situations,

b_parameter( follows log normal distribution)/b_cost(fixed) ,
b_parameter( follows log uniform distribution)/b_cost(fixed),
b_parameter ...
by alvinej
20 May 2024, 11:32
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis

hi stephane,

sorry for the confusion
i have some question regarding latent class modelling, willingness to pay and post estimation analysis

i have a model with 2 classes,

questions
1. regarding willingness to pay, in my model, for both class purchase price is a non random parameter and for class ...
by alvinej
16 May 2024, 13:08
Forum: Post-estimation analysis/use of results
Topic: post-estimation scenario analysis
Replies: 16
Views: 197593

Re: post-estimation scenario analysis

stephanehess wrote: 09 Oct 2023, 11:46 Hi stephane

I have a question regarding post estimation scenario analysis
my question is how to calculate WTP for different scenarios after model estimation.