group2: Calculates the group2 IHA statistics

In IHA: This package implements The Nature Conservancy's Indicators of Hydrologic Alteration software in R.

Description

The group 2 statistics measure the magnitude of monthly water condition and include 12 parameters.

Usage

  group2(x, year = c("water", "calendar"), mimic.tnc = T,
    ...)

Arguments

mimic.tnc	should the function perform the calculation like the TNC IHA software?
...	additional arguments passed to ddply
x	A zoo object containing the flow series
year	the type of year factor to be used, yr = 'water' or yr = 'calendar' for water years and calendar years respectively

Value

a data frame with the group 2 statistics for each year

Author(s)

[e-mail]

References

http://www.conservationgateway.org/Files/Pages/indicators-hydrologic-altaspx47.aspx

Examples

data(bullrun)
group2(bullrun, 'water')

IHA documentation built on May 2, 2019, 5:15 p.m.