This code is part of the ML.NET taxi fare prediction demo.

mlnet-taxidemo-prediction.cs

// create a prediction engine for one single prediction
var predictionFunction = model.CreatePredictionEngine<TaxiTrip, TaxiTripFarePrediction>(mlContext);

// prep a single taxi trip
var taxiTripSample = new TaxiTrip()
{
    VendorId = "VTS",
    RateCode = "1",
    PassengerCount = 1,
    TripDistance = 3.75f,
    PaymentType = "1",
    FareAmount = 0 // actual fare for this trip = 15.5
};

// make the prediction
var prediction = predictionFunction.Predict(taxiTripSample);

// sho the prediction
Console.WriteLine($"Single prediction:");
Console.WriteLine($"  Predicted fare: {prediction.FareAmount:0.####}");
Console.WriteLine($"  Actual fare: 15.5");