From an object of class 'summary.smfa',
coef extracts the coefficients,
their standard errors, z-values, and (asymptotic) P-values.
From on object of class 'smfa', it extracts
only the estimated coefficients.
Usage
# S3 method for class 'smfa'
coef(object, ...)
# S3 method for class 'summary.smfa'
coef(object, ...)Arguments
- object
A stochastic metafrontier model returned by
smfa, or an object of class'summary.smfa'.- ...
Currently ignored.
Value
For objects of class 'summary.smfa',
coef returns a matrix with four columns. Namely, the
estimated coefficients, their standard errors, z-values,
and (asymptotic) P-values.
For objects of class 'smfa', coef
returns a numeric vector of the estimated coefficients.
See also
smfa, for the stochastic metafrontier analysis model
fitting function using cross-sectional or pooled data.