RVA: IHA Range of Variability Approach

Description Usage Arguments Details Value

Description

Analyse IHA results using the Range of Variability Approach.

Usage

1
RVA(pre, post, rvacat)

Arguments

pre

The pre-impact IHA statistics, i.e. the output of IHA(...).

post

The post-impact IHA statistics.

rvacat

The RVA categories, as defined by e.g. RVA_categories(pre)

Details

The boundaries argument defines cutoffs relative to the mean (if parametric = TRUE) or median (if parametric = FALSE), e.g. boundaries = c(-17, 17) represents cutoffs at the 33rd and 67th percentile when parametric = FALSE, and boundaries = c(-0.5, 0.5) represents cutoffs at +/- 0.5 standard deviations from the mean when parametric = TRUE.

Value

A 5-column dataframe containing the Hydrologic Alteration Factor for each parameter and RVA category, and the upper and lower bounds defining the RVA categories for each parameter.


mkoohafkan/flowregime documentation built on May 23, 2019, 2:02 a.m.