org.matsim.contrib.parking.parkingchoice.PC2.analysis.AverageWalkDistanceStats.java Source code

Introduction

Here is the source code for org.matsim.contrib.parking.parkingchoice.PC2.analysis.AverageWalkDistanceStats.java

Source

/* *********************************************************************** *
 * project: org.matsim.*
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2014 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */
package org.matsim.contrib.parking.parkingchoice.PC2.analysis;

import java.util.HashMap;
import java.util.LinkedList;

import org.apache.commons.math.stat.descriptive.DescriptiveStatistics;
import org.apache.log4j.Logger;
import org.matsim.api.core.v01.Coord;
import org.matsim.api.core.v01.Id;
import org.matsim.api.core.v01.events.Event;
import org.matsim.api.core.v01.population.Person;
import org.matsim.contrib.parking.parkingchoice.PC2.infrastructure.PC2Parking;
import org.matsim.contrib.parking.parkingchoice.PC2.simulation.ParkingArrivalEvent;
import org.matsim.contrib.parking.parkingchoice.lib.GeneralLib;
import org.matsim.contrib.parking.parkingchoice.lib.obj.list.Lists;
import org.matsim.core.events.handler.BasicEventHandler;

public abstract class AverageWalkDistanceStats implements BasicEventHandler {

    private static final Logger log = Logger.getLogger(AverageWalkDistanceStats.class);

    private HashMap<Id<PC2Parking>, PC2Parking> parking;

    private HashMap<String, LinkedList<Double>> walkDistances;

    @Override
    public void reset(int iteration) {
        walkDistances = new HashMap<String, LinkedList<Double>>();
    }

    public AverageWalkDistanceStats(HashMap<Id<PC2Parking>, PC2Parking> parking) {
        this.parking = parking;
    }

    @Override
    public void handleEvent(Event event) {
        if (event.getEventType().equalsIgnoreCase(ParkingArrivalEvent.EVENT_TYPE)) {
            Id<Person> personId = ParkingArrivalEvent.getPersonId(event.getAttributes());
            if (personId != null) {
                Id<PC2Parking> parkingId = ParkingArrivalEvent.getParkingId(event.getAttributes());

                Coord destCoord = ParkingArrivalEvent.getDestCoord(event.getAttributes());

                double walkDistance = GeneralLib.getDistance(parking.get(parkingId).getCoordinate(), destCoord);

                if (!walkDistances.containsKey(getGroupName(parkingId))) {
                    walkDistances.put(getGroupName(parkingId), new LinkedList<Double>());
                }

                walkDistances.get(getGroupName(parkingId)).add(walkDistance);

            }
        }
    }

    public void printStatistics() {
        for (String groupName : walkDistances.keySet()) {
            DescriptiveStatistics dd = new DescriptiveStatistics(Lists.getArray(walkDistances.get(groupName)));
            long mean = Math.round(dd.getMean());
            long stdev = Math.round(dd.getStandardDeviation());
            log.info("groupName: " + groupName + "; mean: " + mean + "[m]; standardDeviation: " + stdev + "[m]");
        }
    }

    public abstract String getGroupName(Id<PC2Parking> parkingId);

}