Hi everyone,

I have the following code:

bootstrap, reps(200) nodrop: probit ftptmain1 imm_perceptions* i.prov i.largefirm1 i.naics_21 i.survmnth i.sex i.age_12 i.marstat i.educ i.schooln tenure if n_obs>=10 & inlist(prov,10,11,12,13) & inlist(immig,1,2)
eststo reg3
margins, dydx(*) post

But Stata is giving me this error: missing predicted values encountered within the estimation sample

(I added nodrop because before adding it I was receiving bootstrap error: insufficient observations to compute bootstrap standard errors no results will be saved stata)

I was wondering if anyone can help me with this.
Thanks