public void WMATest()
{
decimal[] values = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5 };
try
{
var smaResult = MovingAverages.WMA(values, 0);
}
catch (ArgumentException ex)
{
Assert.AreEqual("period <= 0", ex.Message);
}
try
{
var result = MovingAverages.WMA(values, values.Length + 1);
}
catch (ArgumentException ex)
{
Assert.AreEqual("period > values.Lenght", ex.Message);
}
var wma3Result = MovingAverages.WMA(values, 3);
double[] expectedValues = { 2.33, 3.33, 4.33, 5.33, 6.33, 7.33, 8.33, 4.83, 2.83, 2.33, 3.33, 4.33 };
Assert.AreEqual(expectedValues.Length, wma3Result.Length);
for (int i = 0; i < wma3Result.Length; i++)
{
Assert.AreEqual(expectedValues[i], (double)wma3Result[i], 0.01);
}
}
private void WMAPeriod_ValueChanged(object sender, EventArgs e)
{
if (WMAPeriod.Value == 0)
{
chart.ClearWMA();
}
if (WMAPeriod.Value > 0)
{
if (selectedPair == null)
{
MessageBox.Show("Pair is not selected.");
}
else if (WMAPeriod.Value > selectedPair.DeltaValues.Count())
{
MessageBox.Show("maximum value = " + selectedPair.DeltaValues.Count());
}
else
{
double[] sma = MovingAverages.WMA(selectedPair.DeltaValues.ToArray(), (int)WMAPeriod.Value);
chart.SetWMA(sma, (int)WMAPeriod.Value);
}
}
}