Dear Nick,
Thank you for your advice.
I'm sorry for my late reply, as I missed your reply for a
while.
>I suspect that you could benefit
>from a pseudo-time variable,
>numbering first, second, ...
>observations for each person 1, 2, ...
>and then -tsset-ting using that.
>Also exclude all missings.
I see.
Following your advice, I'll give it another try.
K.I.
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