Search found 1338 matches

by ChrisCharlton
Mon Mar 20, 2023 10:19 am
Forum: Stat-JR user forum
Topic: Error running 2LevelUnordered Template in MCMCglmm and Rrstan
Replies: 9
Views: 23973

Re: Error running 2LevelUnordered Template in MCMCglmm and Rrstan

Are you able to provide any further details regarding the models that you are trying to fit? Is the goal to fit them within MCMCglmm?
by ChrisCharlton
Thu Mar 16, 2023 8:58 pm
Forum: runmlwin user forum
Topic: Multilevel binomial response
Replies: 1
Views: 3366

Re: Multilevel binomial response

MLwiN does not estimate a level-1 variance for binomial models, instead constraining it to a fixed value. For more details see:

Apportioning Variation in Multilevel Models

and

Partitioning variation across levels
by ChrisCharlton
Tue Feb 07, 2023 2:43 pm
Forum: runmlwin user forum
Topic: Weights in mcmc model of runmlwin
Replies: 1
Views: 3502

Re: Weights in mcmc model of runmlwin

Unfortunately, other than in conjunction with multiple-membership models, MLwiN does not support weights when using MCMC estimation.
by ChrisCharlton
Thu Jan 19, 2023 5:01 pm
Forum: runmlwin user forum
Topic: How to set up a joint model correctly (repeated measures - outcome (1) and a later distal outcome (2))
Replies: 2
Views: 3779

Re: How to set up a joint model correctly (repeated measures - outcome (1) and a later distal outcome (2))

I asked George about this and he recommended the following method of replicating the model in MLwiN: // create variable to represent the intercept generate cons = 1 // combine weight and sbp responses into a single column capture drop y replace weight = 0 if weight == . replace sbp = 0 if sbp ==. ge...
by ChrisCharlton
Wed Jan 04, 2023 11:19 am
Forum: Stat-JR user forum
Topic: How to use command line interface?
Replies: 6
Views: 16644

Re: How to use command line interface?

We don't have a lot of information on this outside the advanced guide. What kind of extensions are you hoping to add?
by ChrisCharlton
Wed Jan 04, 2023 11:16 am
Forum: MLwiN user forum
Topic: REQUEST FOR HELP
Replies: 1
Views: 2877

Re: REQUEST FOR HELP

MLwiN allows the worksheet columns to have different lengths, however any that are used in the model (including level identifiers, etc) must contain the same number of rows. The error message suggests that this is not the case for your model so I would suggest looking the the Data Manipulation>Names...
by ChrisCharlton
Fri Nov 25, 2022 10:12 am
Forum: R2MLwiN user forum
Topic: Why intercept differs from sample mean
Replies: 2
Views: 3612

Re: Why intercept differs from sample mean

I checked this with George and the behaviour is expected and is covered in Snijders and Bosker . George gives the following explanation for the simplest multilevel case (two-level variance components model): The intercept is interpreted as the population average of the cluster-specific population me...
by ChrisCharlton
Tue Oct 18, 2022 10:03 am
Forum: runmlwin user forum
Topic: runmlwin causing MLwiN to load all observations
Replies: 5
Views: 7447

Re: runmlwin causing MLwiN to load all observations

The loading procedure should be the same for both models, I think that you just don't see the loading message on the four level model because the data finishes loading before the message is displayed. The question is therefore why the data takes so much longer to load for the five level model. My su...
by ChrisCharlton
Mon Oct 17, 2022 7:08 pm
Forum: runmlwin user forum
Topic: runmlwin causing MLwiN to load all observations
Replies: 5
Views: 7447

Re: runmlwin causing MLwiN to load all observations

Would you be able to elaborate on the error that this is causing? The data should be loaded into MLwiN in both cases, however it may be that the data for the 5 level model is large enough that MLwiN has time to report the loading progress. Does the model fail to estimate, or are there problems when ...
by ChrisCharlton
Tue Oct 11, 2022 1:48 pm
Forum: MLwiN user forum
Topic: Please help me
Replies: 1
Views: 9525

Re: Please help me

Can you provide more details on what you are trying to do, as well as the steps that you have taken so far?