Hello everyone,

I am really new to Stata, and when I use the mixlogit command by Arne R. Hole, I get the message of "At least one group has more than one chosen alternative" even though I'm sure I don't have more than one alternatives chosen for each scenario, does anyone know what to do? Do I have to transfer my data into some other kind of format?
And then, when I want to use the lclogit command to check, I get the message "weights must be the same for all observations in a group." How do I set weight for the observations? Also, can anyone show me how to include my ASC in these two commands? I haven't seen it in the examples.
The attachment is the snapshot of my data, I don't know what's wrong with my choices.
Thank you very much for helping me ahead.