For the given input and output build the lp_solve problem and return it.
lp_solve_dea(input, output, orientation = c("input", "output"), solve = FALSE)list(lp, status, ux, vy, eff)
A matrix or a data frame containing the inputs of the units to be evaluated, with one row for each DMU and one column for each input.
A matrix or a data frame containing the outputs of the units to be evaluated, with one row for each DMU and one column for each output.
Use "input" for input orientation or "output" for output orientation in DEA model. The default is "input".
If TRUE then solve dea model