/// <summary>
/// Inspects the members of the data Table, focusing on the named field. It calculates
/// the median of the values in the named field.
/// </summary>
/// <param name="self"></param>
/// <param name="fieldName"></param>
/// <returns></returns>
public static BoxStatistics GetBoxStatistics(this DataTable self, string fieldName)
{
DataColumn dc = self.Columns[fieldName];
ArrayList lst = new ArrayList();
foreach (DataRow row in self.Rows)
{
lst.Add(row[fieldName]);
}
lst.Sort();
BoxStatistics result = new BoxStatistics();
if (lst.Count % 2 == 0)
{
if (dc.DataType == typeof(string))
{
}
// For an even number of items, the mean is the average of the middle two values (after sorting)
double high = Convert.ToDouble(lst.Count / 2);
double low = Convert.ToDouble(lst.Count / 2 - 1);
result.Median = (high + low) / 2;
}
else
{
result.Median = lst[(int)Math.Floor(lst.Count / (double)2)];
}
return result;
}
/// <summary>
/// Inspects the members of the data Table, focusing on the named field. It calculates
/// the median of the values in the named field.
/// </summary>
/// <param name="self"></param>
/// <param name="fieldName"></param>
/// <returns></returns>
public static BoxStatistics GetBoxStatistics(this DataTable self, string fieldName)
{
DataColumn dc = self.Columns[fieldName];
ArrayList lst = new ArrayList();
foreach (DataRow row in self.Rows)
{
lst.Add(row[fieldName]);
}
lst.Sort();
BoxStatistics result = new BoxStatistics();
if (lst.Count % 2 == 0)
{
if (dc.DataType == typeof(string))
{
}
// For an even number of items, the mean is the average of the middle two values (after sorting)
double high = Convert.ToDouble(lst.Count / 2);
double low = Convert.ToDouble(lst.Count / 2 - 1);
result.Median = (high + low) / 2;
}
else
{
result.Median = lst[(int)Math.Floor(lst.Count / (double)2)];
}
return(result);
}
