Imbens-Kalyanaraman (IK) MSE-optimal bandwidth

Dispatches to rdrobust::rdbwselect(bwselect = "mserd") which implements the modern IK-equivalent CCT MSE-optimal rule.

Usage

morie_rdd_bandwidth_ik(x, y, cutoff = 0, kernel = "triangular")

Arguments

x

Numeric vector of running-variable values (used by bandwidth selectors + density tests that don't take a data.frame).

y

Numeric vector of outcome values aligned with x.

cutoff

Numeric scalar; the threshold on running. Default 0 (the canonical normalisation).

kernel

One of "triangular" (default), "epanechnikov", "uniform", or "gaussian".