Computes the fourth risk measure due to Luce (1980)
luceg4(spec, a, b, aa, bb, ...)
a character string specifying the distribution (for example, "norm" corresponds to the standard normal)
a positive valued parameter, see Chan and Nadarajah for details
a positive valued parameter, see Chan and Nadarajah for details
the lower end point of the distribution specified by spec
the upper end point of the distribution specified by spec
other parameters
A scalar, giving Luce (1980)'s fourth risk measure of the distribution specified by spec
S. Chan and S. Nadarajah, Risk: An R package for risk measures, submitted
R. D. Luce, Several possible measures of risk, Theory and Decision, 12, 1980, 217-228 <DOI:10.1007/BF00135033>