private double GetPredictedVelocity(HistoryKind historyKind, NormalizedBurndownHistory normalizedHistory, bool ignoreNonWorkingdays)
{
int nDays = Project.GetProject(MainProjectID).AverageVelocitySpan;
if (cache.predictedVelocityCache != null && cache.predictedVelocityCache[(int)historyKind].ContainsKey(nDays))
{
return(cache.predictedVelocityCache[(int)historyKind][nDays]);
}
double weightedValueSum = 0;
double weightedDaysSum = 0;
int iDay = nDays;
DateTime day = DateTime.Now.Date;
if (ignoreNonWorkingdays && !Project.IsWorkingDay(day))
{
day = Project.GetPreviousWorkingDay(day);
}
DateTime previousDay = day.AddDays(-1);
if (ignoreNonWorkingdays && !Project.IsWorkingDay(previousDay))
{
previousDay = Project.GetPreviousWorkingDay(previousDay);
}
for (int i = 0; i < nDays; i += 1)
{
if (previousDay < normalizedHistory.Start)
{
break;
}
double velocityOneDay = normalizedHistory.ValueAt(previousDay.Date) - normalizedHistory.ValueAt(day.Date);
weightedValueSum += velocityOneDay * iDay;
weightedDaysSum += iDay;
iDay -= 1;
day = previousDay;
previousDay = previousDay.AddDays(-1);
if (ignoreNonWorkingdays && !Project.IsWorkingDay(previousDay))
{
previousDay = Project.GetPreviousWorkingDay(day);
}
}
double prediction = 0;
if (weightedDaysSum > 0)
{
prediction = weightedValueSum / weightedDaysSum;
}
if (cache.predictedVelocityCache == null)
{
cache.predictedVelocityCache = new Dictionary <int, double> [3];
for (int i = 0; i < cache.predictedVelocityCache.Length - 1; i += 1)
{
cache.predictedVelocityCache[i] = new Dictionary <int, double>();
}
}
cache.predictedVelocityCache[(int)historyKind].Add(nDays, prediction);
return(prediction);
}
private double GetPredictedVelocity(HistoryKind historyKind, NormalizedBurndownHistory normalizedHistory, bool ignoreNonWorkingdays)
{
int nDays = Project.GetProject(MainProjectID).AverageVelocitySpan;
if (cache.predictedVelocityCache != null && cache.predictedVelocityCache[(int)historyKind].ContainsKey(nDays))
return cache.predictedVelocityCache[(int)historyKind][nDays];
double weightedValueSum = 0;
double weightedDaysSum = 0;
int iDay = nDays;
DateTime day = DateTime.Now.Date;
if (ignoreNonWorkingdays && !Project.IsWorkingDay(day))
day = Project.GetPreviousWorkingDay(day);
DateTime previousDay = day.AddDays(-1);
if (ignoreNonWorkingdays && !Project.IsWorkingDay(previousDay))
previousDay = Project.GetPreviousWorkingDay(previousDay);
for (int i = 0; i < nDays; i += 1)
{
if (previousDay < normalizedHistory.Start)
break;
double velocityOneDay = normalizedHistory.ValueAt(previousDay.Date) - normalizedHistory.ValueAt(day.Date);
weightedValueSum += velocityOneDay * iDay;
weightedDaysSum += iDay;
iDay -= 1;
day = previousDay;
previousDay = previousDay.AddDays(-1);
if (ignoreNonWorkingdays && !Project.IsWorkingDay(previousDay))
previousDay = Project.GetPreviousWorkingDay(day);
}
double prediction = 0;
if (weightedDaysSum > 0)
prediction = weightedValueSum / weightedDaysSum;
if (cache.predictedVelocityCache == null)
{
cache.predictedVelocityCache = new Dictionary<int, double>[3];
for (int i = 0; i < cache.predictedVelocityCache.Length - 1; i += 1)
cache.predictedVelocityCache[i] = new Dictionary<int, double>();
}
cache.predictedVelocityCache[(int)historyKind].Add(nDays, prediction);
return prediction;
}
