AUC: Calculate AUC Using the Trapezoidal Method

In metrumrg: Pharmacometric Tools for Data Preparation, Modeling, Simulation, and Reporting

Description

Calculate the area under the curve (AUC) for each subject over the time interval for dv using the trapezoidal rule.

Usage

AUC(data, time = 'TIME', id = 'ID', dv = 'DV')

Arguments

data	data.frame containing the data to use for the AUC calculation
time	chronologically ordered time variable present in data
id	variable in data defining subject level data
dv	dependent variable used to calculate AUC present in data

Details

The AUC function performs the calculation based on the variables id, time, and dv present in the R data object. Warnings are issued if any of these contain NA.

Value

One area under the dv-time curve is returned for each subject.

Author(s)

Leonid Gibiansky

References

http://metrumrg.googlecode.com

metrumrg documentation built on May 2, 2019, 5:55 p.m.