Search found 1360 matches

by ChrisCharlton
Thu Jul 31, 2025 4:17 pm
Forum: MLwiN user forum
Topic: V gone -ve definite for block 0 iteration aborted
Replies: 1
Views: 15260

Re: V gone -ve definite for block 0 iteration aborted

There don't seem to be any attachments to your message, did they fail to upload?
by ChrisCharlton
Thu Jun 26, 2025 1:58 pm
Forum: runmlwin user forum
Topic: Syntax Errors Running Cross-Classified 3-Level Model via runmlwin in Stata
Replies: 1
Views: 55822

Re: Syntax Errors Running Cross-Classified 3-Level Model via runmlwin in Stata

The first thing to check would be that your command is conceptually on one line. You can split it across several lines to aid readability, however you would need to put /// at the end of each line to indicate a line continuation.

You can only specify each level once in runmlwin, so you can't have ...
by ChrisCharlton
Tue Apr 08, 2025 10:54 am
Forum: runmlwin user forum
Topic: Time as a predictor
Replies: 4
Views: 30256

Re: Time as a predictor

These two approaches should also work with runmlwin, so it is probably worth trying both ways and then comparing with the results that you had previously from gsem.
by ChrisCharlton
Tue Apr 08, 2025 8:55 am
Forum: runmlwin user forum
Topic: Error while running multinomial multilevel regression
Replies: 4
Views: 26878

Re: Error while running multinomial multilevel regression

Assuming that the data sample you provided is representative of the rest of the data I think that your problem may be that your data is not sorted by the model hierarchy. Rather than using unique values of ID codes to determine the units MLwiN instead calculates this on when the ID code changes as ...
by ChrisCharlton
Mon Apr 07, 2025 3:57 pm
Forum: runmlwin user forum
Topic: Categorical variable as a predictor
Replies: 4
Views: 24826

Re: Categorical variable as a predictor

runmlwin should (more or less) work like any other Stata command, so you should be able to use the standard Stata facilities to create the required dummies. I think that the example we provide only does it manually to make the process more explicit (and give the generated dummies names of our ...
by ChrisCharlton
Mon Apr 07, 2025 9:09 am
Forum: runmlwin user forum
Topic: Time as a predictor
Replies: 4
Views: 30256

Re: Time as a predictor

Could you provide any further information about what your time variable represents? E.g., Is it the occasion on which a measurement was taken, as in the example in chapter 13 of the MLwiN manual ( https://www.bristol.ac.uk/cmm/media/software/mlwin/downloads/manuals/3-13/manual-web.pdf ), or is it a ...
by ChrisCharlton
Mon Apr 07, 2025 8:57 am
Forum: runmlwin user forum
Topic: Categorical variable as a predictor
Replies: 4
Views: 24826

Re: Categorical variable as a predictor

lc1 lc2 and lc3plus are dummy variables that were created from the categorical variable lc . You can see the code that was used to create them at the beginning of the replication example for chapter 10 of the MLwiN user's guide ( https://www.bristol.ac.uk/cmm/media/runmlwin/10_Multinomial_Logistic ...
by ChrisCharlton
Mon Apr 07, 2025 8:48 am
Forum: runmlwin user forum
Topic: Error while running multinomial multilevel regression
Replies: 4
Views: 26878

Re: Error while running multinomial multilevel regression

Are you able to provide any information about your data and its structure? For example, does it contain missing values, does it have particularly large/small clusters, does it contain some extreme values, etc? Can you try fitting simpler versions of the model (e.g. with only the intercept) to see if ...
by ChrisCharlton
Wed Apr 02, 2025 2:08 pm
Forum: MLwiN user forum
Topic: My statistics knowledge is fairly basic
Replies: 1
Views: 19940

Re: My statistics knowledge is fairly basic

Discrete response models fitted via (R)IGLS in MLwiN are often compared using a Wald test. For details of how to do this test see the MLwiN manual, for example on pages 125, 131 and 138.
by ChrisCharlton
Wed Apr 02, 2025 12:55 pm
Forum: R2MLwiN user forum
Topic: Struggling to use MLwIN on macOS
Replies: 1
Views: 66929

Re: Struggling to use MLwIN on macOS

I believe that you should be able to manually allow the application to run by following the steps in this article: https://support.apple.com/en-gb/guide/m ... b3a043/mac. For a more detailed description of the cause of this warning see https://support.apple.com/en-gb/102445.