ZScore

The Z-Score (or standard score ) (ZScore) is a numerical measurement of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean. If a Z-score is 0, it indicates that the data point's score is identical to the mean score. A Z-score of 1.0 would indicate a value that is one standard deviation from the mean. Z-scores may be positive or negative, with a positive value indicating the score is above the mean and a negative score indicating it is below the mean.

Calculation

Chart Example

Implementation and Usage

Example

 1// Create new instance
 2var indicator = new ZScore(28);
 3
 4// Number of stored values
 5indicator.HistoryCapacity = 2;
 6
 7// Add new data point
 8indicator.Add(CurrentPrice);
 9
10// Get indicator value
11double IndicatorValue = indicator.ZSCORE;
12// Get previous value
13if (indicator.HistoryCount == 2)
14{
15    double IndicatorPrevValue = indicator[1];
16}