cv {MBESS}R Documentation

Function to calculate the regular (and biased) estimate of the coefficient of variation or the unbiased estimate of the coefficient of variation.

Description

Returns the estimated coefficient of variation or the unbiased estimate of the coefficient of variation.

Usage

cv(C.of.V=NULL, mean=NULL, sd=NULL, N=NULL, unbiased=FALSE)

Arguments

C.of.V Usual estimate of the coefficient of variation (C.of.V=sd/mean)
mean observed mean
sd observed standard deviation (based on N-1 in the denominator of the variance)
N sample size
unbiased return the unbiased estimate of the coefficient of variation

Details

A function to calculate the usual estimate of the coefficient of variation or its unbiased estimate.

Value

Returns the unbiased estimate for the standard deviation.

Author(s)

Ken Kelley (University of Notre Dame; KKelley@ND.Edu)

Examples

cv(mean=100, sd=15)
cv(mean=100, sd=15, N=50, unbiased=TRUE)
cv(C.of.V=.15, N=2, unbiased=TRUE)

[Package MBESS version 2.0.0 Index]