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ssdavenport / microsynth

Synthetic controls for micro-level data
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Specify that time invariant variables must be numeric #16

Closed kdonavin closed 3 years ago

kdonavin commented 5 years ago

I ran into this warning when attempting to use Factor type variable in the match.covar parameter.

WARNING: <var_name> is a non-numeric variable. It will be removed from match.covar.