Search found 26 matches

by hdilk0507
Sun Nov 04, 2012 3:06 pm
Forum: MLwiN user forum
Topic: MLwiN help system
Replies: 2
Views: 4987

MLwiN help system

What is MLwiN help system? From where I can find it?
by hdilk0507
Sun Nov 04, 2012 3:05 pm
Forum: MLwiN user forum
Topic: SSP matrix
Replies: 2
Views: 6152

SSP matrix

1. What is SSP matrix?
2. When I start MCMC estimation a warning message apperas as "SSP matrix for fixedpart has gone negative..." and asks whether to stop estimation or continue. What should I do at this situation?
by hdilk0507
Sun Nov 04, 2012 10:18 am
Forum: MLwiN user forum
Topic: Compare DIC
Replies: 4
Views: 8405

Compare DIC

If, when a new variable (level 2) is added to the model reduction in DIC is less than 1, should I select the minimum DIC model? I noticed that estimates of coefficients of both models are approximately equal (some are almost the same).
by hdilk0507
Sun Nov 04, 2012 3:45 am
Forum: MLwiN user forum
Topic: Changing values in Variance- Covariance matrix
Replies: 3
Views: 6679

Changing values in Variance- Covariance matrix

I'm using MCMC estimation to fit a binary logistic model. When I allow level 2 variables to vary across level 2 units (treat level 2 variables as random effects), after IGLS iterations, the var-covariance matrix seems not positive definite. When I attempt to start MCMC estimation it gives an error. ...
by hdilk0507
Thu Oct 18, 2012 2:02 am
Forum: Realcom user forum
Topic: Imputation Model
Replies: 2
Views: 5519

Re: Imputation Model

Thank You very much sir.
by hdilk0507
Wed Oct 10, 2012 5:04 pm
Forum: MLwiN user forum
Topic: Variance- Covariance matrix
Replies: 4
Views: 6425

Re: Variance- Covariance matrix

Thank You.
by hdilk0507
Mon Oct 08, 2012 2:07 pm
Forum: MLwiN user forum
Topic: Variance- Covariance matrix
Replies: 4
Views: 6425

Re: Variance- Covariance matrix

Thanks a lot. I'll follow your instructions. Is it mentioned in the manual to change values in the column c1096? Or did you give that advice depending on any research paper? Please include a reference for that as I have to mention the reason for changing values in my thesis. Actually I have to clari...
by hdilk0507
Fri Oct 05, 2012 2:01 pm
Forum: MLwiN user forum
Topic: Variance- Covariance matrix
Replies: 4
Views: 6425

Variance- Covariance matrix

I use MCMC estimation to fit a logistic regression model for a binary response. When i add a level 2 variable as a random effect to the model with level 1 variables and run IGLS, the variance co-variance matrix appeared to be with lot of zeros. Therefore I cannot implement MCMC estimation. How can I...
by hdilk0507
Fri Oct 05, 2012 1:08 pm
Forum: Realcom user forum
Topic: Imputation Model
Replies: 2
Views: 5519

Imputation Model

Is there a method (s) to decide which variables should be included in the imputation model? Is it good if I include all level 1 & level 2 variables in my data set in the imputation model?
by hdilk0507
Tue Sep 25, 2012 12:49 am
Forum: Realcom user forum
Topic: Interaction Effects Model
Replies: 2
Views: 5368

Re: Interaction Effects Model

Thank you very much sir. I would like to know from where I can find the new method.