A function to change the unknown pumping rate to a preferred value.
change_unknown_pumping.RdArguments
- x
 A numeric value of the preferred pumping rate
- input_df
 A data.frame of the input data. See estimate_sgd for details.
- yearly_df
 A data.frame of the yearly pumping data. (2 columns: year, pumping)
- pumping_df
 A data.frame of the pumping data