exp_factor {eel}

R Documentation

Calculating expansion factor for EEL for the mean

Description

The function calculates the first order expansion factor of EEL for the mean.

Usage

exp_factor(x, theta)
## Default S3 method:
exp_factor(x,theta)

Arguments

x	Data matrix of interest.
theta	The value to be evaluated.

Details

The first order expansion factor for calculating EEL is defined as

\gamma(n,l(\theta))=1+\frac{l(\theta)}{2n}.

Value

The function will return a numerical value representing the value of the expansion factor calculated.

Author(s)

Fan Wu & Yu Zhang

References

Tsao, M. (2013). Extending the empirical likelihood by domain expansion. The Canadian Journal of Statistics, 41 (2), 257-274.

See Also

EEL, prime_image, exp_factor_est

Examples

x=rnorm(400,0,3)
exp_factor(x,0)

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