Last data update: 2014.03.03

 R: shift.mean
shift.meanR Documentation

shift.mean

Description

Given a collection of predator and prey isotopic measurements, produce the average discrimination factors between the two sets of measurements.

Usage

shift.mean(predator.frame, prey.frame)

Arguments

predator.frame

A data frame containing isotopic measurements from the predator species.

prey.frame

A data frame containing isotopic measurements from a collection of prey species.

Value

A vector containing the average discrimination factors between the predator and prey sets, or an empty vector otherwise.

Author(s)

Robert Robere

See Also

isotopesolve, estimate.shiftvec

Results


Created & Maintained by Osamu Ogasawara (osamu.ogasawara@gmail.com) and IMSBIO