public void PredictEndLocation()
{
foreach (var driver in drivers)
{
RoutePrediction routePrediction = new RoutePrediction(500);
foreach (TripSummary trip in trips.Where(t => t.DriverId.Equals(driver)))
{
routePrediction.AddTripSummary(trip);
}
double lat = 47.6583066666667;
double lon = -122.14119;
RoutePredictionResult predictionResult = routePrediction.PredictEndLocation(lat, lon, DateTime.Now);
Console.WriteLine("driver: " + driver);
Console.WriteLine("cluster level: " + predictionResult.ClusterLevel);
foreach (var prediction in predictionResult.Predictions)
{
Console.Write("Lat/Lon: " + prediction.Lat + "/" + prediction.Lon);
Console.Write("\tProbability: " + prediction.Probability);
Console.Write("\tEndpoints: " + prediction.NrOfEndPoints);
Console.Write("\tMatches T/D/W: " + prediction.NrOfTimeMatches);
Console.Write("/" + prediction.NrOfDayMatches);
Console.WriteLine("/" + prediction.NrOfWorkdayMatches);
}
Console.WriteLine();
}
}
private void PopulatePredictionViewByStop(string stopName, RoutePrediction prediction, List <string> displayedPlateNumbers)
{
int secondsToArrival = prediction.EstimateTime;
string plateNumber = prediction.PlateNumb;
if (plateNumber == "-1")
{
if (prediction.IsLastBus)
{
PopulatePredictionView(stopName, MESSAGE_OUT_OF_SERVICE);
}
else
{
PopulatePredictionView(stopName, MESSAGE_PLANNED);
}
}
else if (displayedPlateNumbers.Contains(plateNumber))
{
PopulatePredictionView(stopName, secondsToArrival);
}
else
{
PopulatePredictionView(stopName, secondsToArrival, plateNumber);
displayedPlateNumbers.Add(plateNumber);
}
}
private Button CreateRouteArriveButton(RoutePrediction arriveRoute, Route route, string routeUID = null)
{
Button button = new Button();
if (routeUID == null)
{
routeUID = arriveRoute.SubRouteUID.Replace(" ", "");
}
RouteView.RouteViewConfig Config = new RouteView.RouteViewConfig(arriveRoute.RouteID, routeUID, arriveRoute.SubRouteName.En, route.HeadSign, FindBackSubRouteUID(routeUID, route));
arriveRoute.EstimateTime = arriveRoute.EstimateTime / 60;
button.Text = string.Format("{0}\t {1}分鐘", new string[] { route.HeadSign, arriveRoute.EstimateTime.ToString() });
button.Clicked += (object sender, EventArgs e) => { Navigation.PushAsync(new RouteView(Config)); };
return(button);
}
private void PopulateRoute(String routeID, String subRouteUID)
{
IEnumerable <StopOfRoute> stopsOfSingleRoute = StopOfRoute.RetrieveFromJson(string.Format(URL_STOP_OF_ROUTE, routeID))
.Where(entity => string.Equals(entity.SubRouteUID, subRouteUID));
if (stopsOfSingleRoute.Count() == 0)
{
return;
}
IEnumerable <RoutePrediction> predictions = RoutePrediction.RetrieveFromJson(string.Format(URL_ESTIMATED_ARRIVAL, routeID, subRouteUID));
StopArrivalPrediction view = new StopArrivalPrediction(stopsOfSingleRoute.First(), predictions);
Content = new ScrollView {
Content = view
};
}
public StopArrivalPrediction(StopOfRoute stopsOfSingleRoute, IEnumerable <RoutePrediction> predictions) : base()
{
Spacing = 3;
Padding = new Thickness(20, 20, 20, 0);
List <string> displayedPlateNumbers = new List <string>();
foreach (StopOfRoute.Stop stop in stopsOfSingleRoute.Stops)
{
string stopName = stop.StopName.Zh_tw;
IEnumerable <RoutePrediction> candidatePredictions = predictions.Where(prediction => string.Equals(stopName, prediction.StopName.Zh_tw));
if (candidatePredictions.Count() != 1)
{
continue;
}
RoutePrediction currentPrediction = candidatePredictions.First();
PopulatePredictionViewByStop(stopName, currentPrediction, displayedPlateNumbers);
}
}
private Button CreateRouteArriveButton(RoutePrediction arriveRoute, IEnumerable <string> skipUID, List <string> processedRouteID)
{
string routeUID = arriveRoute.SubRouteUID;
if (skipUID.Contains(routeUID))
{
return(null);
}
routeUID = routeUID.Replace(" ", "");
Route route = RouteSQLiteRepository.Instance.Get(routeUID);
if (!processedRouteID.Contains(route.Number))
{
processedRouteID.Add(route.Number);
PageLayout.Children.Add(new Label {
Text = route.Number, FontSize = 20, TextColor = Color.Red
});
}
return(CreateRouteArriveButton(arriveRoute, route, routeUID));
}
public void TrainAndValidate()
{
var clusterSizes = new int[] { 10, 100, 150, 200, 250, 300, 400, 500, 750, 1000, 2000 };
CSVWriter csvWriter = new CSVWriter(@"..\..\testdata\validations.csv", ";");
Console.WriteLine("Writing validation results to validations.csv");
foreach (var driver in drivers)
{
var currentTrips = trips.Where(t => t.DriverId.Equals(driver));
for (int i = 1; i < currentTrips.Count() - 1; i++)
{
List <TripSummary> trainingSet = new List <TripSummary>();
List <TripSummary> validationSet = new List <TripSummary>();
int j = 0;
foreach (var trip in currentTrips)
{
if (j++ < i)
{
trainingSet.Add(trip);
}
else
{
validationSet.Add(trip);
}
}
foreach (var clusterSize in clusterSizes)
{
RoutePrediction routePrediction = new RoutePrediction(clusterSize);
RoutePredictionValidationResult result = routePrediction.TrainAndValidate(trainingSet, validationSet);
csvWriter.WriteRow(driver, clusterSize, trainingSet.Count(), validationSet.Count(), result.Validations);
}
}
}
Console.WriteLine("done");
}
private void PopulateArriveRoute(String stopID, String stopName)
{
PageLayout.Children.Add(new Label {
Text = "即將到達路線"
});
IEnumerable <StopOnRoute> StopsOnSingleRoute = StopOnRouteSQLiteRepository.Instance.Retrieve(stopID);
List <string> processedRouteUID = new List <string>();
List <string> processedRouteID = new List <string>();
foreach (StopOnRoute StopOnSingleRoute in StopsOnSingleRoute)
{
IEnumerable <RoutePrediction> arriveRoutes = RoutePrediction.RetrieveFromJson(string.Format("http://ptx.transportdata.tw/MOTC/v2/Bus/EstimatedTimeOfArrival/InterCity?$filter=SubRouteUID%20eq%20%27{0}%27%20and%20StopName/Zh_tw%20eq%20%27{1}%27&$top=30&$format=JSON", StopOnSingleRoute.SubRouteUID, stopName));
foreach (RoutePrediction arriveRoute in arriveRoutes)
{
if (arriveRoute.PlateNumb != "-1")
{
Button routeDetails = CreateRouteArriveButton(arriveRoute, processedRouteUID, processedRouteID);
CheckArriveRoute = true;
if (routeDetails == null)
{
continue;
}
processedRouteUID.Add(arriveRoute.SubRouteUID);
PageLayout.Children.Add(routeDetails);
}
else
{
continue;
}
}
}
if (!CheckArriveRoute)
{
PageLayout.Children.Add(new Label {
Text = "本站無即將到達路線", FontSize = 20, TextColor = Color.Red, HorizontalOptions = LayoutOptions.CenterAndExpand
});
}
}
