Density estimates for absolute z-statistics assuming that z-statistics are symmetrically distributed around 0

Avoids downward bias at the left hand side where abs(z)=0.

absz.density(
  z,
  at = NULL,
  bw = 0.1,
  adjust = 1,
  kernel = "epanechnikov",
  n = 1024
)

Arguments

z	vector of z-statistics (or absolute z-statistics)
at	vector of points where density shall be evaluated. If NULL return a function (by calling approxfun) that allows evaluate the density at arbitrary points.
bw, adjust, kernel, n, ...	arguments passed to stats::density