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Hi Chris
Manay thanks for your suggestions, it seems that runmlwin work properly. Yet, using - mi est- command, I have problem as follow. Would you please help me with that?

Best Wishes

mi est,saving(miest)cmdok: runmlwin V_outcome5 V_SEXID2 i.V_LICENCETYPEID3 i.ENSANI3 cons, level2( TheKey:cons) level1(V_id:) discrete(dist(multinomial) link(ologit) denom(cons) basecategory(3)) nopause
(26100 values of imputed variable V_outcome5 in m>0 updated to match values in m=0)
i: operator invalid
an error occurred when mi estimate executed runmlwin on m=1
no results will be saved

Dear Chris
I also tried the below syntax; mi est,saving(miest)cmdok: runmlwin V_outcome5 V_JOBTYPEID3 cons, level2( TheKey
> :cons) level1(V_id:) discrete(dist(multinomial) link(ologit) denom(cons) basecate
> gory(3)) nopause

but in MLwin software I got an error"can not allocate smatrix(fs).

What does that mean?

I would suggest that you first try your new models without the mi: prefix so you can determine whether the problem is with -mi- or -runmlwin-.

Assuming that you are using a recent version of Stata that supports it I can't see a reason why it doesn't like the i. syntax, however as an alternative you could add the xi: prefix to your -runmlwin- call, i.e.
The error message can not allocate smatrix(fs) will often indicate that some of your higher level units are larger than MLwiN's default memory allocation can handle. You may be able to solve this by adding the optimat option to the end of your -runmlwin- call. Otherwise you may have to use a subset of your data and/or switch your MLwiN_path to the 64-bit scripting version of MLWiN.

OK
Dear Chris
I tried the model without mi prefix, drop individuals with missing values out of data and use the optimate option. Again I got error message "option optimate not allowed".

xi:runmlwin V_outcome5 V_SEXID2 i.V_LICENCETYPEID3 cons, level2( TheKey:cons) le
> vel1(V_id:) discrete(dist(multinomial) link(ologit) denom(cons) basecategory(3))
> nopause optimate
i.V_LICENCETY~3 _IV_LICENCE_0-4 (naturally coded; _IV_LICENCE_0 omitted)

option optimate not allowed

Regards

You have a slight typo in your command syntax. It should be optimat not optimate.

Yes,
But there is no difference in outputs;

xi:runmlwin V_outcome5 V_SEXID2 i.V_LICENCETYPEID3 cons, level2( TheKey:cons) le
> vel1(V_id:) discrete(dist(multinomial) link(ologit) denom(cons) basecategory(3))
> optimat
i.V_LICENCETY~3 _IV_LICENCE_0-4 (naturally coded; _IV_LICENCE_0 omitted)

option optimat not allowed


xi:runmlwin V_outcome5 V_SEXID2 cons, level1(V_id:) discrete(dist(multinomial)
> link(ologit) denom(cons) basecategory(3)) nopause optimat

option optimat not allowed
r(198);

Sorry - I slightly mis-remembered the syntax. It should be a sub-option under mlwinsettings, so the correct command would be:

Hi Dear Chria
Many thanks for your kindly suggestions. It seems to works wihout problem.

Thank you again for your helps

Best Regards