Print a summary of the gross output function estimation routine from gnrprod: names of output and inputs, summary statistics of the estimated productivity, the function estimates and standard errors if applicable, and convergence information.
# S3 method for summary.gnr
print(x, digits = max(3L, getOption("digits") - 3L), ...)print.gnr has no return value and only prints the elements contained in an object of class 'summary.gnr' as described in the description.
an object of class 'summary.gnr'.
the number of significant figures to use for printing.
currently not used.