Hi everyone, I am using Proc Surveylogistic on SAS 9.4 and having trouble with my SAS model converging and wondering how to address this. I've tried all of the ridging options and increased the max iterations. SAS suggests using HALFMAX and INEST, but I cannot find any information on these options. Here is the warning message: WARNING: The linesearch technique has failed to improve the loglikelihood. You may want to increase the maximum number of step halvings (HALFMAX= option), or switch to use a ridging technique (RIDGING= option), or specify a new set of parameter estimates (INEST= option). WARNING: The SURVEYLOGISTIC procedure continues in spite of the above warning. Results shown are based on the last maximum likelihood iteration. Validity of the model fit is questionable. Can someone direct me to where I can find information on HALFMAX or INEST? Thank you.
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