public override Task <bool?> ShouldBuyStock(StockInput newData)
{
HistoricalData.Add(newData);
if (HistoricalData.Count > 20)
{
HistoricalData = HistoricalData.OrderByDescending(x => x.Time).Take(20).ToList();
var avg = HistoricalData.Select(x => x.ClosingPrice).Average();
var diff = avg - newData.ClosingPrice;
return(Task.FromResult <bool?>(diff >= 0));
}
else
{
Console.WriteLine($"Waiting on more data for {GetType().Name}.");
return(Task.FromResult <bool?>(null));
}
}
public override Task <bool?> ShouldBuyStock(StockInput newData)
{
HistoricalData.Add(newData);
HistoricalData = HistoricalData.OrderByDescending(x => x.Time).Take(3).ToList();
var last3Values = HistoricalData.Select(x => x.ClosingPrice).ToList();
//Default to hold
var result = (bool?)null;
if (last3Values.Count >= 3 && last3Values[0] > last3Values[1] && last3Values[1] > last3Values[2])
{
//Buy if we have 2 mins of increase
result = true;
}
else if (last3Values.Count >= 3 && (last3Values[0] < last3Values[1] || last3Values[1] < last3Values[2]))
{
//Sell if any decrease in price
result = false;
}
return(Task.FromResult(result));
}