private void InitGradeChart()
{
List <int> groupedGrades = ComputeStatistics.GroupGrades(grades);
gradeChart.Series = new SeriesCollection {
new ColumnSeries
{
Title = "Grades",
Values = new ChartValues <int>
{
groupedGrades[0],
groupedGrades[1],
groupedGrades[2],
groupedGrades[3],
groupedGrades[4],
groupedGrades[5],
groupedGrades[6],
groupedGrades[7],
groupedGrades[8],
groupedGrades[9]
}
}
};
gradeChart.AxisX = new AxesCollection {
new Axis
{
Title = "Grade",
Labels = new[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" }
}
};
gradeChart.AxisY = new AxesCollection {
new Axis
{
Title = "Number of Students",
LabelFormatter = value => value.ToString("N")
}
};
averageGradeLabel.Text = "Average: " +
ComputeStatistics.ComputeAverageSingles(grades).ToString();
string mostCommon = "Most Common: ";
foreach (int i in ComputeStatistics.ComputeMostCommonSingles(grades))
{
mostCommon += i.ToString() + " ";
}
mostCommonGradeLabel.Text = mostCommon;
medianGradeLabel.Text = "Median: " +
ComputeStatistics.ComputeMedianSingles(grades).ToString();
varianceGradeLabel.Text = "Variance: " +
ComputeStatistics.ComputeVarianceSingles(grades).ToString();
}
private void InitSelfStudyHoursChart()
{
double[] groupedHours = ComputeStatistics.GroupHours(selfStudyHours);
selfStudyHoursChart.Series = new SeriesCollection {
new RowSeries
{
Title = "selfStudy Hours",
Values = new ChartValues <double>
{
groupedHours[0] / ratings.Count,
groupedHours[1] / ratings.Count,
groupedHours[2] / ratings.Count,
groupedHours[3] / ratings.Count,
groupedHours[4] / ratings.Count,
}
}
};
selfStudyHoursChart.AxisY = new AxesCollection {
new Axis
{
Title = "Hours per week",
Labels = new[] { "0-1", "2-3", "4-5", "6-7", "8+" }
}
};
selfStudyHoursChart.AxisX = new AxesCollection {
new Axis
{
Title = "% of Ratings",
LabelFormatter = value => value.ToString("N")
}
};
averageSelfStudyHoursLabel.Text = "Average: " +
ComputeStatistics.ComputeAverageSingles(selfStudyHours).ToString();
string mostCommon = "Most Common: ";
foreach (int i in ComputeStatistics.ComputeMostCommonSingles(selfStudyHours))
{
mostCommon += i.ToString() + " ";
}
mostCommonSelfStudyHoursLabel.Text = mostCommon;
medianSelfStudyHoursLabel.Text = "Median: " +
ComputeStatistics.ComputeMedianSingles(selfStudyHours).ToString();
varianceSelfStudyHoursLabel.Text = "Variance: " +
ComputeStatistics.ComputeVarianceSingles(selfStudyHours).ToString();
}
private void GetValuesFromCourses()
{
overallRatings = new int[5];
organizedRatings = new int[5];
interestingRatings = new int[5];
presentedRatings = new int[5];
learnedRatings = new int[5];
List <int> contactHoursList = new List <int>();
List <int> selfStudyHoursList = new List <int>();
List <int> gradesList = new List <int>();
List <Tuple <int, bool> > gradesAndPassedList = new List <Tuple <int, bool> >();
foreach (Rating rating in Ratings)
{
overallRatings[rating.OverallRating - 1]++;
organizedRatings[rating.Organized - 1]++;
interestingRatings[rating.Interesting - 1]++;
presentedRatings[rating.Presentation - 1]++;
learnedRatings[rating.Learned - 1]++;
contactHoursList.Add(rating.ContactHours);
selfStudyHoursList.Add(rating.SelfStudyHours);
gradesList.Add(rating.Grade);
gradesAndPassedList.Add(new Tuple <int, bool>(rating.Grade, rating.PassedFirstTime));
}
contactHours = ComputeStatistics.GroupHours(contactHoursList);
selfStudyHours = ComputeStatistics.GroupHours(selfStudyHoursList);
grades = ComputeStatistics.GroupGrades(gradesList);
gradesAndPassed = ComputeStatistics.GroupPassed(gradesAndPassedList);
double tmp = ComputeStatistics.ComputeAverageGrouped(overallRatings);
overallAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianGrouped(overallRatings);
overallMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceGrouped(overallRatings);
overallVariance = "Variance: " + tmp.ToString("0.####");
List <int> tmpList = ComputeStatistics.ComputeMostCommonGrouped(overallRatings);
overallMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageGrouped(organizedRatings);
organizedAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianGrouped(organizedRatings);
organizedMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceGrouped(organizedRatings);
organizedVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonGrouped(organizedRatings);
organizedMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageGrouped(presentedRatings);
presentedAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianGrouped(presentedRatings);
presentedMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceGrouped(presentedRatings);
presentedVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonGrouped(presentedRatings);
presentedMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageGrouped(interestingRatings);
interestingAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianGrouped(interestingRatings);
interestingMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceGrouped(interestingRatings);
interestingVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonGrouped(interestingRatings);
interestingMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageGrouped(learnedRatings);
learnedAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianGrouped(learnedRatings);
learnedMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceGrouped(learnedRatings);
learnedVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonGrouped(learnedRatings);
learnedMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageSingles(contactHoursList);
contactHoursAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianSingles(contactHoursList);
contactHoursMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceSingles(contactHoursList);
contactHoursVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonSingles(contactHoursList);
contactHoursMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageSingles(selfStudyHoursList);
selfStudyHoursAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianSingles(selfStudyHoursList);
selfStudyHoursMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceSingles(selfStudyHoursList);
selfStudyHoursVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonSingles(selfStudyHoursList);
selfStudyHoursMostCommon = "Most common: " + string.Join(',', tmpList);
tmp = ComputeStatistics.ComputeAverageSingles(gradesList);
gradesAverage = "Average: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeMedianSingles(gradesList);
gradesMedian = "Median: " + tmp.ToString("0.##");
tmp = ComputeStatistics.ComputeVarianceSingles(gradesList);
gradesVariance = "Variance: " + tmp.ToString("0.####");
tmpList = ComputeStatistics.ComputeMostCommonSingles(gradesList);
gradesMostCommon = "Most common: " + string.Join(',', tmpList);
}
