ci: Concentration Index

In precintcon: Precipitation Intensity, Concentration and Anomaly Analysis

Description

Calculates the Concentration Index (CI) on a daily precipitation serie.

Usage

ci(..., interval = 1)

Arguments

interval	the interval in millimeters applied for calculating the concentration index. (Default value: 1)
...	a set of daily precipitation series.

Value

A data.frame containing the following variables:

• dataset is the precipitation serie name.

• a is the constant of the exponential curve defined via the least-squares method.

• b is the constant of the exponential curve defined via the least-squares method.

• r2 is the determination of coefficient of determination (R2) of the exponential model.

• A is the area over the exponential curve.

• S is the are compressed for the exponential curve.

• ci is the concentration index.

Author(s)

Lucas Venezian Povoa [e-mail]

See Also

pplot.lorenz read.data as.daily

Examples

##
# Loading the daily precipitation serie.
data(daily)

##
# Performing the Concentration Index Analysis
ci(daily, interval = 1)

Example output

Loading required package: ggplot2
Loading required package: scales

Attaching package: 'precintcon'

The following object is masked from 'package:ggplot2':

    stat

  dataset         a          b        r2        A        S        ci
1   daily 0.1045706 0.02230283 0.9979949 2405.993 2594.007 0.5188014

precintcon documentation built on May 2, 2019, 3:07 p.m.