public NormalDistributionDecimal(decimal[] array)
{
dataArray = array;
sd = new StandardDeviation(dataArray);
standardDeviation = (decimal)sd.GetResult();
mean = (decimal)sd.GetMean();
}
public NormalDistributionDouble(double[] array)
{
dataArray = array;
sd = new StandardDeviation(dataArray);
standardDeviation = (double)sd.GetResult();
mean = (double)sd.GetMean();
}
public NormalDistributionFloat(float[] array)
{
dataArray = array;
sd = new StandardDeviation(dataArray);
standardDeviation = (float)sd.GetResult();
mean = (float)sd.GetMean();
}
public override object GetTTestValue(object array1, object array2)
{
StandardDeviation sd1 = new StandardDeviation(array1);
StandardDeviation sd2 = new StandardDeviation(array2);
decimal array1Mean = (decimal)sd1.GetMean();
decimal array1SD = (decimal)sd1.GetResult();
decimal array2Mean = (decimal)sd2.GetMean();
decimal array2SD = (decimal)sd2.GetResult();
int length1 = (array1 as Array).Length;
int length2 = (array2 as Array).Length;
return((double)Math.Abs(array1Mean - array2Mean) / (Math.Sqrt(Math.Pow(Convert.ToDouble(array1SD), 2) / length1 + Math.Pow(Convert.ToDouble(array2SD), 2) / length2)));
}
public override object GetTTestValue(object array1, object array2)
{
StandardDeviation sd1 = new StandardDeviation(array1);
StandardDeviation sd2 = new StandardDeviation(array2);
float array1Mean = (float)sd1.GetMean();
float array1SD = (float)sd1.GetResult();
float array2Mean = (float)sd2.GetMean();
float array2SD = (float)sd2.GetResult();
int length1 = (array1 as Array).Length;
int length2 = (array2 as Array).Length;
return(Math.Abs(array1Mean - array2Mean) / (Math.Sqrt(Math.Pow(array1SD, 2) / length1 + Math.Pow(array2SD, 2) / length2)));
}
public override object GetCorrelationRatio()
{
StandardDeviation sd1 = new StandardDeviation(array1);
StandardDeviation sd2 = new StandardDeviation(array2);
double mean1 = (double)sd1.GetMean();
double mean2 = (double)sd2.GetMean();
double sum = 0;
for (int i = 0; i < length; i++)
{
sum += (array1[i] - mean1) * (array2[i] - mean2);
}
return((sum / ((double)sd1.GetResult() * (double)sd2.GetResult())) / (length - 1));
}
public override void GetGreatFive(out object mean1, out object mean2, out object sigma1, out object sigma2, out object r)
{
StandardDeviation sd1 = new StandardDeviation(array1);
StandardDeviation sd2 = new StandardDeviation(array2);
mean1 = (double)sd1.GetMean();
mean2 = (double)sd2.GetMean();
sigma1 = (double)sd1.GetResult();
sigma2 = (double)sd2.GetResult();
double sum = 0;
for (int i = 0; i < length; i++)
{
sum += (array1[i] - (double)mean1) * (array2[i] - (double)mean2);
}
r = (sum / ((double)sigma1 * (double)sigma2)) / (length - 1);
}
public override object GetStandardDeviation()
{
return(sd.GetResult());
}