public double Normal(int mean = 1, int standardDeviation = 1)
{
var theta = 2 * Math.PI * _randomWrapper.NextDouble();
var rho = Math.Sqrt(-2 * Math.Log(1 - +_randomWrapper.NextDouble()));
var scale = standardDeviation * rho;
return(mean + scale * Math.Cos(theta));
}
static double GetRandomValue(IRandomWrapper random, int min, int max)
{
int intPart = random.Next(min, max);
double floatPart = Math.Round(random.NextDouble(), 2);
return(intPart + floatPart);
}
static Data CreateItem(int year, int month)
{
return(new Data()
{
Month = new DateTime(year, month, DateTime.DaysInMonth(year, month)),
ConstructionIncome = random.Next(75000, 125000) + (decimal)random.NextDouble(),
SalesIncome = random.Next(0, 1000),
CostOfGoodsSold = random.Next(0, 3500) + (decimal)random.NextDouble(),
JobExpenses = random.Next(5000, 35000) + (decimal)random.NextDouble(),
Automobile = random.Next(300, 900) + (decimal)random.NextDouble(),
BankServiceCharges = random.Next(10, 80),
Insurance = random.Next(1000, 5000),
PayrollExpenses = random.Next(9000, 18000),
Repairs = random.Next(0, 400),
ToolsAndMachinery = random.Next(0, 1000),
});
}
public bool Boolean(double trueRatio = 0.5)
{
return(_randomWrapper.NextDouble() < trueRatio);
}