Function to calculate the mean absolute deviation between the measured and simulated drawdown.
mean_absolute_deviation(par, ptest, model)
| par | A list with the parameters of the model. |
|---|---|
| ptest | A pumping_test object. |
| model | A character string with the name of the model. |
The numeric value of the mean absolute deviation.
Other objective_function functions: box_cox_transf,
loglikelihood_bc,
loglikelihood,
max_absolute_deviation,
mean_square_error,
residual_sum_squares