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Hi! I get the following message. Could you please advise how to fix it so I don't get the error? Should I worry about this or not? 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 -0.313D-16. PROBLEM INVOLVING PARAMETER 81. |
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Please send your output and license number to support@statmodel.com. |
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