question: public String generateMinimalMATSimConfig ( ) { Config config = new Config ( ) ; ConfigGroup ippcm = config . createModule ( MatrixBasedPtRouterConfigGroup . GROUP_NAME ) ; ippcm . addParam ( MatrixBasedPtRouterConfigGroup . PT_STOPS , this . ptStops ) ; ippcm . addParam ( MatrixBasedPtRouterConfigGroup . USING_PT_STOPS , "tRue" ) ; ippcm . addParam ( MatrixBasedPtRouterConfigGroup . PT_TRAVEL_TIMES_AND_DISTANCES_SWITCH , this . useTravelTimesAndDistances ) ; ChangeModeConfigGroup changeModeConfig = ConfigUtils . addOrGetModule ( config , ChangeModeConfigGroup . CONFIG_MODULE , ChangeModeConfigGroup . class ) ; String [ ] str = { "car" , "pt" } ; changeModeConfig . setModes ( str ) ; return writeConfigFile ( config ) ; }
target:  generates the external MATSim config file with the specified parameter settings