internal function for running local linear distribution regression for a vector of y and x
lldrs.inner(y.seq, xmain.seq, Y, XMain, XOther = NULL, h = NULL,
method = "level", cl = 1)
a vector of y values to compute F(y|x) for using local linear distribution regression
a vector of x values to compute F(y|x) using local linear distribution regression
a vector containing the data for the outcome
a vector containing the data for the "main" x variable
a matrix or data.frame containing the data for the "other" x variables
optional bandwidth
"level" or "rank" determining whether method should be used conditional on ytmin1 or the rank of ytmin1
The number of clusters to use, default is 1
a list of llDR objects that are indexed by y and t separately