pick_lambda | R Documentation |
Choose regularisation parameter that minimises pseudo-treatment prediction error for Doudchenko Imbens (2016) estimator
pick_lambda(j, Y, lambdas, T0)
j |
index of pseudo-treatment unit |
Y |
matrix of control outcomes (wide, where each column is a series) |
lambdas |
sequence of lambda parameters |
T0 |
number of pre-treatment periods |
value of lambda that minimises prediction error for pseudo-treatment
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