I'm wondering whether all the variables used in "ml model" equations
need to be of type double.
All my temporary variables are of type double, but the non-temp
(external) variables used to calculate xb are floats and bytes. "ml
display" is giving me dots in place of the standard errors and/or the
program seems to stop iterating, so I'm wondering whether the external
variable types are the problem.
Thanks again for all your help. You all have saved me a lot of time.
Rachel
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