H2: Heterogeneity measure (H2) for pooling groups.
Description
Quantifies the heterogeneity of a pooled group
Usage
H2(x)
Value
A vector of two characters; the first representing the H2 score and the second stating a qualitative measure of heterogeneity.
Arguments
x
pooling group derived from the Pool() function
Author
Anthony Hammond
Details
The H2 measure was developed by Hosking & Wallis and can be found in their book 'Regional Frequency Analysis: an approach based on LMoments (1997). It was also adopted for use by the Flood Estimation Handbook (1999) and is described in volume 3.