H2: Heterogeneity measure (H2) for pooling groups.
Description
Quantifies the heterogeneity of a pooled group
Usage
H2(x, H1 = FALSE)
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
H1
logical with a default of FALSE. If TRUE, the function applies the 'H1' version of the test (see Hosking & Wallis 1997 reference). If FALSE, the default H2 version is applied.
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.