CSDID Characteristic Contents Too Long

[Trevor Andrew]

I am using the csdid command

csdid outcome, ivar(place) time(time) gvar(gvar) notyet

and get the following error:

Characteristic contents too long. The maximum value of the contents is 67,784.

Has anyone run into this problem? The observation level is month-place and I have around 110k observations.

[FernandoRios]

Can you "tab" gvar time. That, i guess, will be the biggest issue

[Trevor Andrew]

It says too many values

[FernandoRios]

That may be your answer.
Unfortunately, without that info, I cant help with any trouble shooting.

[Trevor Andrew]

I have 180 distinct time values and 57 distinct gvar values. Is there a problem for the command if you have too many time or gvar values?

[FernandoRios]

It could be because of how your Gvars are stored. I usually suggest to use a simple conversion (say _10 for first month in data, 11 for the next so on so forht, and modify gvar and tvar in both)
however, 57*180 also means 10K variables.
That could also be biting here.

[Trevor Andrew]

I followed https://asjadnaqvi.github.io/DiD/docs/code/06_05_csdid/ and did the exact same set up. time is 1,..,180. So essentially you are saying use time as _10,11,12,... gvar would be 0 if not treated and if e.g., treated in second month 11 for that unit? Just making sure since I don't understand what you mean by modify gvar and tvar in both?