These methods return the coefficients and their covariance matrix from a model estimated by Frontier 4.1.
# S3 method for front41Output
coef( object, which = "MLE", … )   # S3 method for summary.front41Output
coef( object, which = "MLE", … )
   # S3 method for front41Output
vcov( object, … )
an object of class front41Output
    or summary.front41Output
    (read/created by front41ReadOutput
    or summary.front41Output, respectively).
character string indication, which coefficients should be returned: either 'OLS' (from OLS estimation), 'GRID' (from grid search), or 'MLE' (from maximum likelihood estimation).
currently ignored.
The coef method applied to an object of class front41Output
returns a vector containing all
coefficients estimated by Frontier 4.1.
The coef method applied to an object of class
summary.front41Output returns a matrix containing
the estimates, their standard errors, the \(t\) values and \(P\) values
of all coefficients estimated by Frontier 4.1.
The vcov method returns the covariance matrix
of all coefficients estimated by Frontier 4.1.