object of class scores, defaults to Wilcoxon scores
delta
confidence level
hparm
Joe's hparm
...
additional arguments. currently unused
Details
This is the confidence interval type estimate of the scale parameter tau developed my Koul, Sievers, and McKean (1987).
This estimate is also discussed in Section 3.7.1 of Hettmansperger and McKean (1998).
One of these function is called in rfit. The default is to use the faster FORTRAN version.
The R version can be more precise in small samples, but also can be much slower especially when sample sizes are large.
Value
Length one numeric object.
Author(s)
Joseph McKean, John Kloke
References
Hettmansperger, T.P. and McKean J.W. (2011), Robust Nonparametric Statistical Methods, 2nd ed., New York: Chapman-Hall.
Koul, H.L., Sievers, G.L., and McKean, J.W. (1987) An esimator of the scale parameter for the rank analysis of linear models under general score functions, Scandinavian Journal of Statistics, 14, 131-141.