xtlogit error (outcome does not vary)

[Shu Zhang]

Hello,

I ran a random-effects logistic regression model in Stata 16.1, but the following error occurred.

xtlogit st01 c.dhea_s_3cn i.wave, i(id) re

. xtlogit st01 c.dhea_s_3cn, i(id) re
outcome does not vary; remember:
0 = negative outcome,
all other nonmissing values = positive outcome
r(2000);

However, I checked the frequency of this variable in the data and did not find any missing values.

Could anyone tell me how to solve this problem?

[Joseph Coveney]

Maybe try

generate byte has_missing = missing(dhea_s_3cn, wave, id)
tabulate st01 if !has_missing, missing

[JST Liow]

Hi I am new to Stata and the Forum and I also encounter issue with xtlogit. Appreciate any help: I ran the xtlogit on panel data with interaction. Then I tried to run margins and marginsplot command. I got error message saying that, "invalid at() dimension information; using variable IMEA (moderating variable) as a factor variable and a regular variable is not supported". Anyone can help? Thanks

[Carlo Lazzaro]

JST:
welcome to this forum.
As per FAQ, please:
1) show what you typed and what Stata gave you back;
2) share an example/excerpt of your dataset via CODE delimiters.
Thanks.