Comparison of non-parametric methods for ungrouping coarsely aggregated data

Table 1 Selected ungrouping methods for comparison

Method and references	Abbreviation	Program for estimation
Bootstrap kernel density estimator [14, 26]	bootkde	bda R package, bde function, bootkde method
Piecewise cubic Hermite interpolating polynomial [21, 27]	hermite spline	signal R package, interp1 function, pchip method
Spline interpolation with Hyman filter [5, 18, 28]	hyman spline	demography R package, cm.spline function
Iterated conditional expectation kernel density estimator [15, 29]	ickde	ICE R package, ickde function
Penalized composite link model [22]	pclm	R code in Rizzi et al. (2015)

ISSN: 1471-2288