Actually a better solution would be to make PID into a factor. They can
always be coerced to a number, but will display with your meaningful labels.
Duncan Murdoch
On 25/10/2023 3:38 p.m., Duncan Murdoch wrote:
I don't see it documented, but it appears that the gee() function
assumes the id
I don't see it documented, but it appears that the gee() function
assumes the id variable can be coerced to a number. Your ids are in
PID, and are strings like "HIPS004", etc. Change that to "004" or a
numeric 4 and the error goes away.
Duncan Murdoch
On 25/10/2023 3:23 p.m., Sorkin, John
Colleagues,
I am receiving several error messages from the gee function. I don't understand
the ides the error messages are trying to impart, and I don't know how to debug
or correct the error. The error messages follow:
> fitgee <- gee(HipFlex ~
>
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