public double CalculateAverage(List <double> values, AveragingMethod averagingMethod)
{
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
switch (averagingMethod)
{
case AveragingMethod.Mean:
return(values.Sum() / values.Count);
case AveragingMethod.Median:
var sortedValues = values.OrderBy(x => x).ToList();
int n = sortedValues.Count;
if (n % 2 == 1)
{
return(sortedValues[(n - 1) / 2]);
}
return((sortedValues[sortedValues.Count / 2 - 1] + sortedValues[n / 2]) / 2);
default:
throw new ArgumentException("Invalid averagingMethod value");
}
}
public double CalculateAverage(List <double> values, AveragingMethod averagingMethod)
{
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
if (averagingMethod == null)
{
throw new ArgumentNullException(nameof(averagingMethod));
}
return(averagingMethod(values));
}
public double CalculateAverage(List <double> values, AveragingMethod averagingMethod)
{
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
switch (averagingMethod)
{
case AveragingMethod.Mean:
return(CalculateMean(values));
case AveragingMethod.Median:
return(CalculateMedian(values));
default:
throw new ArgumentException("Invalid averagingMethod value");
}
}
public double CalculateAverage(List <double> values, AveragingMethod averagingMethod)
{
switch (averagingMethod)
{
case AveragingMethod.Mean:
return(values.Sum() / values.Count);
case AveragingMethod.Median:
var sortedValues = values.OrderBy(x => x).ToList();
if (sortedValues.Count % 2 == 1)
{
return(sortedValues[(sortedValues.Count - 1) / 2]);
}
return((sortedValues[(sortedValues.Count / 2) - 1] +
sortedValues[(sortedValues.Count / 2)]) / 2);
default:
throw new ArgumentException("Invalid averagingMethod value");
}
}
public void AverageCalculatorTests_ValidEnum(AveragingMethod method, double result)
{
Calculator calculator = new Calculator();
Assert.AreEqual(result, calculator.CalculateAverageWithEnum(values, method), 0.000001);
}
public Mathematician(AveragingMethod averagingMethod)
{
this.averagingMethod = averagingMethod;
}
