static void IllionWeightedAverage()
{
#region WeightedAverage
int[] values = null;
int[] weights = null;
try
{
Console.WriteLine(WeightedAverage.Mean(values, weights));
} catch (ArgumentException ae)
{
Console.WriteLine("Throw ArgumentException");
}
int[] IntValues = new int[] { 3, 6 };
int[] IntWeights = new int[] { 4, 2 };
Console.WriteLine(WeightedAverage.Mean(IntValues, IntWeights));
Single[] SingleValues = new Single[] { 3, 6 };
Single[] SingleWeights = new Single[] { 4, 2 };
Console.WriteLine(WeightedAverage.Mean(SingleValues, SingleWeights));
#endregion
}
public static void Main(string[] args)
{
int[] values = new int[] { 3, 6 };
int[] weights = new int[] { 4, 2 };
Console.WriteLine(WeightedAverage.Mean(values, weights));
}
public void WeightedAveragetTest120SharesSoldSpecifyingDateInMiddleOfTransactions()
{
var transaction = new Transaction {
SharesSold = 120, PricePerShare = 10.5m, Selldate = new DateTime(2005, 2, 3)
};
var weightedAverage = new WeightedAverage();
var assets = Assets;
var costPrice = weightedAverage.CostPriceOfSharesSoldAndSharesRemaining(transaction, assets);
Assert.AreEqual(1480.0m / 140, costPrice.CostPriceSold);
}
public void WeightedAveragetTest120SharesSold()
{
var transaction = new Transaction {
SharesSold = 120, PricePerShare = 10.5m, Selldate = new DateTime(2005, 4, 3)
};
var weightedAverage = new WeightedAverage();
var assets = Assets;
var costPrice = weightedAverage.CostPriceOfSharesSoldAndSharesRemaining(transaction, assets);
Assert.AreEqual(2030.0m / 190.0m, costPrice.CostPriceSold);
}
public void Calculate()
{
WeightedAverage weighted = new WeightedAverage();
var zero = CurrentShares == 0;
//NewShares =Math.Round(BuyingPower / NewSharesPrice);
BuyingPower = zero ? 0 : Math.Round(NewShares * NewSharesPrice);
TotalShares = zero ? 0 : Math.Round(weighted.TotalShares(CurrentShares, NewShares));
TotalAveragePrice = zero ? 0 : Math.Round(weighted.AverageWeightedPrice(
CurrentShares, AveragePrice, NewShares, NewSharesPrice), 2);
Capital = zero ? 0 : Math.Round(TotalShares * TotalAveragePrice, 2);
}
public UnitTest1()
{
IServiceCollection services = new ServiceCollection();
services.AddSingleton <WeightedAverage>();
services.AddSingleton <FIFO>();
services.AddSingleton <LIFO>();
var serviceProvider = services.BuildServiceProvider();
weightedAverage = serviceProvider.GetRequiredService <WeightedAverage>();
fifo = serviceProvider.GetRequiredService <FIFO>();
lifo = serviceProvider.GetRequiredService <LIFO>();
}
async Task AddPosition_Clicked()
{
var vm = BindingContext as PortfolioAddEditViewModel;
var edit = Title == "Edit Portfolio" ? true : false;
var avg = Convert.ToDouble(EntryAvgPrice.Text);
var shares = Convert.ToDouble(SharesEntry.Text);
if (avg == 0 || shares == 0)
{
await DisplayAlert("investing.ph", "Total Shares or Average Price" +
" cannot be blank.", "OK");
return;
}
Portfolio p = await App._PortfolioData._Portfolio(lblSymbol.Text);
var exists = p == null ? false : true;
if (exists || edit)
{
var newAVG = new WeightedAverage().AverageWeightedPrice(
p.TotalShares, p.AveragePrice, shares, avg);
var newShares = shares + p.TotalShares;
var port = new Portfolio()
{
Symbol = lblSymbol.Text,
Company = lblCompany.Text,
TotalShares = edit ? shares : newShares,
AveragePrice = edit ? avg : newAVG,
PortfolioID = p.PortfolioID
};
await vm.UpdatePortfolio(port);
}
else
{
var port = new Portfolio()
{
Symbol = lblSymbol.Text,
Company = lblCompany.Text,
AveragePrice = avg,
TotalShares = shares
};
await vm.AddToPortfolio(port);
}
await DisplayAlert(vm.Title, vm.StatusMessage, "Ok");
await App.Locator.NavigationService.GoHome();
}
