Functions to find out constants of the relative range distribution.

Description

These functions compute the constants d2, d3 and c4 to get estimators of the standard deviation to set control limits.

Usage

ss.cc.getd2(n = NA)

ss.cc.getd3(n = NA)

ss.cc.getc4(n = NA)

Arguments

Value

A numeric value for the constant.

Author(s)

EL Cano

References

Cano, Emilio L., Moguerza, Javier M. and Redchuk, Andres. 2012. Six Sigma with R. Statistical Engineering for Process Improvement, Use R!, vol. 36. Springer, New York. https://www.springer.com/gp/book/9781461436515.

See Also

ss.cc

Examples

ss.cc.getd2(20)
ss.cc.getd3(20)
ss.cc.getc4(20)