Bootstrap replicability K times This function implements the bootstrap of Krippendorff's Alpha as per http://web.asc.upenn.edu/usr/krippendorff/boot.c-Alpha.pdf

It is designed to be space efficient for sparse oberverments, and as thus does not take as input a reliability matrix, but a long-format data.table TODO(jucor): cite properly

kboot(dt, unit, observer, measurement, nboot)

Arguments

dt	`data.table` containing the reliability data in long format
unit	Name of the column containing the unit ID
observer	Name of the column containing the observer name, one per judge
measurement	Name of the column containing the measurements, one per judge
nboot	number of samples alpha to bootstrap

Value

samples

Vector of nboot sampled alphas

ll95

Lower limit of 95% CI interval

ul95

Upper limit of 95% CI interval

q.alphamin

Probability of failure to achieve an alpha of at least alphamin, dataframe with alphamin and q