public void TestSum()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(0d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(0, stat.N);
stat.AddPoint(10, -2);
Assert.AreEqual(10d, stat.XSum);
Assert.AreEqual(-2d, stat.YSum);
Assert.AreEqual(1, stat.N);
stat.AddPoint(3.5, -3);
Assert.AreEqual(13.5d, stat.XSum);
Assert.AreEqual(-5d, stat.YSum);
Assert.AreEqual(2, stat.N);
stat.AddPoint(1, 5);
Assert.AreEqual(14.5d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(3, stat.N);
stat.RemovePoint(9, 1.5);
Assert.AreEqual(5.5d, stat.XSum);
Assert.AreEqual(-1.5d, stat.YSum);
Assert.AreEqual(2, stat.N);
stat.RemovePoint(9.5, -1.5);
Assert.AreEqual(-4d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(1, stat.N);
stat.RemovePoint(1, -1);
Assert.AreEqual(0d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(0, stat.N);
stat.RemovePoint(1, 1);
Assert.AreEqual(0d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(0, stat.N);
stat.AddPoint(1.11, -3.333);
Assert.AreEqual(1.11d, stat.XSum);
Assert.AreEqual(-3.333d, stat.YSum);
Assert.AreEqual(1, stat.N);
stat.AddPoint(2.22, 3.333);
Assert.AreEqual(1.11d + 2.22d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(2, stat.N);
stat.AddPoint(-3.32, 0);
Assert.AreEqual(1.11d + 2.22d - 3.32d, stat.XSum);
Assert.AreEqual(0d, stat.YSum);
Assert.AreEqual(3, stat.N);
}
public void TestCORREL()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.Correlation);
Assert.AreEqual(0, stat.N);
stat.AddPoint(1, 10);
Assert.AreEqual(Double.NaN, stat.Correlation);
Assert.AreEqual(1, stat.N);
stat.AddPoint(2, 20);
Assert.AreEqual(1d, stat.Correlation);
Assert.AreEqual(2, stat.N);
stat.AddPoint(1.5, 14);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Correlation, 0.993399268, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(1.4, 14);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Correlation, 0.992631989, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
stat.RemovePoint(1.5, 14);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Correlation, 1, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(100, 1);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Correlation, -0.852632057, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
}
public void TestAddRemoveXOnly()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.XAverage);
Assert.AreEqual(0, stat.N);
stat.AddPoint(10);
stat.AddPoint(20);
Assert.AreEqual(15d, stat.XAverage);
Assert.AreEqual(0d, stat.YAverage);
Assert.AreEqual(2, stat.N);
stat.RemovePoint(10);
Assert.AreEqual(20d, stat.XAverage);
Assert.AreEqual(0d, stat.YAverage);
Assert.AreEqual(1, stat.N);
}
public void TestStddev_STDEVPA()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.XStandardDeviationPop);
Assert.AreEqual(Double.NaN, stat.YStandardDeviationPop);
Assert.AreEqual(0, stat.N);
stat.AddPoint(1, 10500);
Assert.AreEqual(0.0d, stat.XStandardDeviationPop);
Assert.AreEqual(0.0d, stat.YStandardDeviationPop);
Assert.AreEqual(1, stat.N);
stat.AddPoint(2, 10200);
Assert.AreEqual(0.5d, stat.XStandardDeviationPop);
Assert.AreEqual(150d, stat.YStandardDeviationPop);
Assert.AreEqual(2, stat.N);
stat.AddPoint(1.5, 10500);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationPop, 0.40824829, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationPop, 141.4213562, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(-0.1, 10500);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationPop, 0.777817459, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationPop, 129.9038106, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
stat.RemovePoint(2, 10200);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationPop, 0.668331255, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationPop, 0.0, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(0.89, 10499);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationPop, 0.580102362, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationPop, 0.433012702, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
stat.AddPoint(1.23, 10500);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationPop, 0.543860276, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationPop, 0.4, PRECISION_DIGITS));
Assert.AreEqual(5, stat.N);
}
public void TestStddevAndVariance_STDEV()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.XStandardDeviationSample);
Assert.AreEqual(Double.NaN, stat.XVariance);
Assert.AreEqual(Double.NaN, stat.YStandardDeviationSample);
Assert.AreEqual(Double.NaN, stat.YVariance);
stat.AddPoint(100, -1);
Assert.AreEqual(Double.NaN, stat.XVariance);
Assert.AreEqual(Double.NaN, stat.XStandardDeviationSample);
Assert.AreEqual(Double.NaN, stat.YVariance);
Assert.AreEqual(Double.NaN, stat.YStandardDeviationSample);
stat.AddPoint(150, -1);
Assert.AreEqual(1250d, stat.XVariance);
Assert.AreEqual(0d, stat.YVariance);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationSample, 35.35533906, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationSample, 0, PRECISION_DIGITS));
stat.AddPoint(0, -1.1);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XVariance, 5833.33333333, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YVariance, 0.003333333, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationSample, 76.37626158, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationSample, 0.057735027, PRECISION_DIGITS));
stat.RemovePoint(100, -1);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XVariance, 11250, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YVariance, 0.005, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationSample, 106.0660172, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationSample, 0.070710678, PRECISION_DIGITS));
stat.AddPoint(-149, 0);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XVariance, 22350.333333, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YVariance, 0.37, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.XStandardDeviationSample, 149.5002787, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YStandardDeviationSample, 0.608276253, PRECISION_DIGITS));
}
public void TestLINEST()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.Slope);
Assert.AreEqual(Double.NaN, stat.YIntercept);
Assert.AreEqual(0, stat.N);
stat.AddPoint(1, 15);
Assert.AreEqual(Double.NaN, stat.Slope);
Assert.AreEqual(Double.NaN, stat.YIntercept);
Assert.AreEqual(1, stat.N);
stat.AddPoint(2, 20);
Assert.AreEqual(5d, stat.Slope);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YIntercept, 10, PRECISION_DIGITS));
Assert.AreEqual(2, stat.N);
stat.AddPoint(1, 17);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Slope, 4, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YIntercept, 12, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(1.4, 14);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Slope, 3.731343284, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YIntercept, 11.46268657, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
stat.RemovePoint(1, 17);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Slope, 5.394736842, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YIntercept, 8.421052632, PRECISION_DIGITS));
Assert.AreEqual(3, stat.N);
stat.AddPoint(0, 0);
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.Slope, 9.764150943, PRECISION_DIGITS));
Assert.IsTrue(DoubleValueAssertionUtil.Equals(stat.YIntercept, 1.509433962, PRECISION_DIGITS));
Assert.AreEqual(4, stat.N);
}
public override void Update(EventBean[] newData, EventBean[] oldData)
{
using (Instrument.With(
i => i.QViewProcessIRStream(this, NAME, newData, oldData),
i => i.AViewProcessIRStream()))
{
// If we have child views, keep a reference to the old values, so we can fireStatementStopped them as old data event.
EventBean oldValues = null;
if (_lastNewEvent == null)
{
if (HasViews)
{
oldValues = PopulateMap(_statisticsBean, AgentInstanceContext.StatementContext.EventAdapterService, _eventType, _additionalProps, _lastValuesEventNew);
}
}
var evaluateParams = new EvaluateParams(_eventsPerStream, true, AgentInstanceContext);
// add data points to the bean
if (newData != null)
{
for (var i = 0; i < newData.Length; i++)
{
_eventsPerStream[0] = newData[i];
var xnum = _expressionXEval.Evaluate(evaluateParams);
var ynum = _expressionYEval.Evaluate(evaluateParams);
if (xnum != null && ynum != null)
{
var x = xnum.AsDouble();
var y = ynum.AsDouble();
_statisticsBean.AddPoint(x, y);
}
}
if ((_additionalProps != null) && (newData.Length != 0))
{
if (_lastValuesEventNew == null)
{
_lastValuesEventNew = new Object[_additionalProps.AdditionalExpr.Length];
}
for (var val = 0; val < _additionalProps.AdditionalExpr.Length; val++)
{
_lastValuesEventNew[val] = _additionalProps.AdditionalExpr[val].Evaluate(evaluateParams);
}
}
}
// remove data points from the bean
if (oldData != null)
{
for (var i = 0; i < oldData.Length; i++)
{
_eventsPerStream[0] = oldData[i];
var xnum = _expressionXEval.Evaluate(evaluateParams);
var ynum = _expressionYEval.Evaluate(evaluateParams);
if (xnum != null && ynum != null)
{
var x = xnum.AsDouble();
var y = ynum.AsDouble();
_statisticsBean.RemovePoint(x, y);
}
}
}
// If there are child view, fireStatementStopped Update method
if (HasViews)
{
var newDataMap = PopulateMap(_statisticsBean, AgentInstanceContext.StatementContext.EventAdapterService, _eventType, _additionalProps, _lastValuesEventNew);
var newEvents = new EventBean[] { newDataMap };
EventBean[] oldEvents;
if (_lastNewEvent == null)
{
oldEvents = new EventBean[] { oldValues };
}
else
{
oldEvents = new EventBean[] { _lastNewEvent };
}
Instrument.With(
i => i.QViewIndicate(this, NAME, newEvents, oldEvents),
i => i.AViewIndicate(),
() => UpdateChildren(newEvents, oldEvents));
_lastNewEvent = newDataMap;
}
}
}
public void TestAverage()
{
BaseStatisticsBean stat = new BaseStatisticsBean();
Assert.AreEqual(Double.NaN, stat.XAverage);
Assert.AreEqual(Double.NaN, stat.YAverage);
Assert.AreEqual(0, stat.N);
stat.RemovePoint(2, 363636);
Assert.AreEqual(Double.NaN, stat.XAverage);
Assert.AreEqual(Double.NaN, stat.YAverage);
Assert.AreEqual(0, stat.N);
stat.AddPoint(10, -2);
Assert.AreEqual(10d, stat.XAverage);
Assert.AreEqual(-2d, stat.YAverage);
Assert.AreEqual(1, stat.N);
stat.AddPoint(20, 4);
Assert.AreEqual(15d, stat.XAverage);
Assert.AreEqual(1d, stat.YAverage);
Assert.AreEqual(2, stat.N);
stat.AddPoint(1, 4);
Assert.AreEqual(31d / 3d, stat.XAverage);
Assert.AreEqual(6d / 3d, stat.YAverage);
Assert.AreEqual(3, stat.N);
stat.AddPoint(1, -10);
Assert.AreEqual(8d, stat.XAverage);
Assert.AreEqual(-4d / 4d, stat.YAverage);
Assert.AreEqual(4, stat.N);
stat.AddPoint(-32, -11);
Assert.AreEqual(0d, stat.XAverage);
Assert.AreEqual(-15d / 5d, stat.YAverage);
Assert.AreEqual(5, stat.N);
stat.RemovePoint(-32, -10);
Assert.AreEqual(32d / 4d, stat.XAverage);
Assert.AreEqual(-5d / 4d, stat.YAverage);
Assert.AreEqual(4, stat.N);
stat.RemovePoint(8, -5);
Assert.AreEqual(24d / 3d, stat.XAverage);
Assert.AreEqual(0d, stat.YAverage);
Assert.AreEqual(3, stat.N);
stat.RemovePoint(2, 50);
Assert.AreEqual(22d / 2d, stat.XAverage);
Assert.AreEqual(-50d / 2d, stat.YAverage);
Assert.AreEqual(2, stat.N);
stat.RemovePoint(1, 1);
Assert.AreEqual(21d / 1d, stat.XAverage);
Assert.AreEqual(-51d, stat.YAverage);
Assert.AreEqual(1, stat.N);
stat.RemovePoint(3, 3);
Assert.AreEqual(Double.NaN, stat.XAverage);
Assert.AreEqual(Double.NaN, stat.YAverage);
Assert.AreEqual(0, stat.N);
}
public override void Update(EventBean[] newData, EventBean[] oldData)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().QViewProcessIRStream(this, UnivariateStatisticsViewFactory.NAME, newData, oldData);
}
// If we have child views, keep a reference to the old values, so we can Update them as old data event.
EventBean oldDataMap = null;
if (_lastNewEvent == null)
{
if (HasViews)
{
oldDataMap = PopulateMap(_baseStatisticsBean, _agentInstanceContext.StatementContext.EventAdapterService, _viewFactory.EventType, _viewFactory.AdditionalProps, _lastValuesEventNew);
}
}
var evaluateParams = new EvaluateParams(_eventsPerStream, true, _agentInstanceContext);
// add data points to the bean
if (newData != null)
{
for (int i = 0; i < newData.Length; i++)
{
_eventsPerStream[0] = newData[i];
var pointnum = _fieldExpressionEvaluator.Evaluate(evaluateParams);
if (pointnum != null)
{
double point = pointnum.AsDouble();
_baseStatisticsBean.AddPoint(point, 0);
}
}
if ((_viewFactory.AdditionalProps != null) && (newData.Length != 0))
{
if (_lastValuesEventNew == null)
{
_lastValuesEventNew = new Object[_viewFactory.AdditionalProps.AdditionalExpr.Length];
}
for (int val = 0; val < _viewFactory.AdditionalProps.AdditionalExpr.Length; val++)
{
_lastValuesEventNew[val] = _viewFactory.AdditionalProps.AdditionalExpr[val].Evaluate(evaluateParams);
}
}
}
// remove data points from the bean
if (oldData != null)
{
for (int i = 0; i < oldData.Length; i++)
{
_eventsPerStream[0] = oldData[i];
var pointnum = _fieldExpressionEvaluator.Evaluate(evaluateParams);
if (pointnum != null)
{
double point = pointnum.AsDouble();
_baseStatisticsBean.RemovePoint(point, 0);
}
}
}
// If there are child view, call Update method
if (HasViews)
{
EventBean newDataMap = PopulateMap(_baseStatisticsBean, _agentInstanceContext.StatementContext.EventAdapterService, _viewFactory.EventType, _viewFactory.AdditionalProps, _lastValuesEventNew);
EventBean[] oldEvents;
EventBean[] newEvents = new EventBean[] { newDataMap };
if (_lastNewEvent == null)
{
oldEvents = new EventBean[] { oldDataMap };
}
else
{
oldEvents = new EventBean[] { _lastNewEvent };
}
Instrument.With(
i => i.QViewIndicate(this, UnivariateStatisticsViewFactory.NAME, newEvents, oldEvents),
i => i.AViewIndicate(),
() => UpdateChildren(newEvents, oldEvents));
_lastNewEvent = newDataMap;
}
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().AViewProcessIRStream();
}
}