/// <summary>
/// Calculates the mode(s) of a user provided value collection
/// </summary>
/// <param name="dto">reference to DTO object we will return to our angular client</param>
internal void CalculateMode(ref CalculationDTO dto)
{
Dictionary <double, int> instanceCount = new Dictionary <double, int>();
foreach (string s in inputs)
{
bool parsed = false;
double tempKey = 0.0;
parsed = Double.TryParse(s, out tempKey);
if (parsed)
{
if (instanceCount.ContainsKey(tempKey))
{
instanceCount[tempKey]++;
}
else
{
instanceCount.Add(tempKey, 1);
}
}
}
dto.mode = new List <double>();
int highestInstanceCount = 0;
foreach (double key in instanceCount.Keys)
{
if (instanceCount[key] > highestInstanceCount)
{
highestInstanceCount = instanceCount[key];
}
}
dto.mode = instanceCount.Keys.Where(k => instanceCount[k] == highestInstanceCount).ToList();
}
/// <summary>
/// Calculates the median of a user provided value collection
/// </summary>
/// <param name="dto">reference to DTO object we will return to our angular client</param>
internal void CalculateMedian(ref CalculationDTO dto)
{
double[] convertedArray = Array.ConvertAll(inputs, Double.Parse);
Array.Sort(convertedArray);
if (convertedArray.Length % 2 != 0)
{
dto.median = convertedArray[(int)Math.Floor((Double)convertedArray.Length / 2)];
}
else
{
int lower = (convertedArray.Length / 2) - 1;
int upper = convertedArray.Length / 2;
dto.median = (convertedArray[lower] + convertedArray[upper]) / 2;
}
}
/// <summary>
/// Calculates the mean of a user provided value collection
/// </summary>
/// <param name="dto">reference to DTO object we will return to our angular client</param>
internal void CalculateMean(ref CalculationDTO dto)
{
double result = 0;
foreach (string s in inputs)
{
bool parsed = false;
double temp = 0.0;
parsed = Double.TryParse(s, out temp);
if (parsed)
{
result += temp;
}
}
dto.mean = (result / inputs.Length);
}
public CalculationHelper(string[] _inputs)
{
inputs = _inputs;
dto = new CalculationDTO();
}
