E.Y1.Rd
a function for computing the conditional expectation of Y_1t given a value for Y_0tmin1
E.Y1(ytmin1val, Y1t, Y0tmin1, h = NULL, method = "level")
scalar value to compute conditional expectation for
vector of treated potential outcomes for the treated group in period t
vector of untreated potential outcomes for the treated group in period t-1
optional bandwidth paramater
can be "level" or "rank", whether the conditional expectation is based on the level of Y0tmin1 or its rank
the conditional expectation of y1 conditional on y0tmin1