public byte SubjectMode(Exam.Subject subject)
{
var grouped = Examinees.GroupBy(r => r.Results[(int)subject]);
var orderedByCount = grouped.OrderByDescending(r => r.Count());
return(orderedByCount.First().Key);
}
public double SubjectMedian(Exam.Subject subject)
{
double result;
var ordered = Examinees.OrderBy(r => r.Results[(int)subject]);
if (Examinees.Count % 2 == 0)
{
result = (double)ordered.ElementAt(Examinees.Count / 2).Results[(int)subject]
+ ordered.ElementAt((Examinees.Count / 2) - 1).Results[(int)subject];
result /= 2;
}
else
{
result = ordered.ElementAt(Examinees.Count / 2).Results[(int)subject];
}
return(result);
}
public double SubjectMedian(Exam.Subject subject)
{
double result;
var examinees = Groups.SelectMany(r => r.Examinees);
var ordered = examinees.OrderBy(r => r.Results[(int)subject]);
if (examinees.Count() % 2 == 0)
{
result = (double)ordered.ElementAt(examinees.Count() / 2).Results[(int)subject]
+ ordered.ElementAt((examinees.Count() / 2) - 1).Results[(int)subject];
result /= 2;
}
else
{
result = ordered.ElementAt(examinees.Count() / 2).Results[(int)subject];
}
return(result);
}
public double SubjectAverage(Exam.Subject subject)
{
return(Examinees.Average(r => r.Results[(int)subject]));;
}
public double SubjectAverage(Exam.Subject subject)
{
var examinees = Groups.SelectMany(r => r.Examinees);
return(examinees.Average(r => r.Results[(int)subject]));;
}
