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| Non-positive product matrix |
 
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| Message/Author |
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Hi, I'm trying to run a FMM but kept running into a problem that I cannot resolve.
THE STANDARD ERRORS OF THE MODEL PARAMETER ESTIMATES MAY NOT BE TRUSTWORTHY FOR SOME PARAMETERS DUE TO A NON-POSITIVE DEFINITE FIRST-ORDER DERIVATIVE PRODUCT MATRIX. THIS MAY BE DUE TO THE STARTING VALUES BUT MAY ALSO BE AN INDICATION OF MODEL NONIDENTIFICATION. THE CONDITION NUMBER IS 0.258D-12. PROBLEM INVOLVING PARAMETER 1.
What's the problem with my syntax?
Variable:
names are id u1 u2 u3 u4 u5 u6 u7 u8 u9 u10 u11 u12 u13 u14 u15;
idvariable is id;
usevar = u1 u2 u3 u4 u5 u6 u7 u8 u9 u10 u11 u12 u13 u14 u15;
classes = c(2);
Analysis:
type = mixture;
starts = 1000 100;
Processors = 4(starts);
Model:
%Overall%
f1 BY u3 u4 u5 u8;
f2 BY u6 u7 u9 u10 u11 u13 u14;
f3 BY u1 u2 u12 u15;
[f1-f3@0];
%c#1%
f1-f3;
f1 BY u4 u5 u8;
f2 BY u7 u9 u10 u11 u13 u14;
f3 BY u2 u12 u15;
f1 with f2;
f1 with f3;
f2 with f3;
[u1-u15];
%c#2%
f1-f3;
f1 BY u4 u5 u8;
f2 BY u7 u9 u10 u11 u13 u14;
f3 BY u2 u12 u15;
f1 with f2;
f1 with f3;
f2 with f3;
[u1-u15];
Thank you so much for your help. |
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