RDS.population          The list that specifies the output of the
                        'population' function.
RDS.samplingEx          The dataframe that specifies the output of the
                        'samplingEx' function.
RDS.samplingP           The dataframe that specifies the output of the
                        'samplingP' function.
population              Generates a RDS Population
samplingEx              Extracts samples from external populations
samplingP               Extract samples from generated populations.
