I ran the following code :
Code:
xi: qreg price i.treatment i.state i.year [pw=round(weight)] if !inlist(state,3,8,15,27,33,28) , vce(robust) grqreg _Itreatment_1, ci ols olsci
But it shows the error:
o._Istate_3 invalid name
r(198);
Could someone help with the reason for the error
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