WebCab Technical Analysis Web Services for Delphi v1.1

Momentum Class

Indicators including Momentum, highest/lowest, Trend Intensity Index; which measure the Momentum seen in the market.

For a list of all members of this type, see Momentum Members.

System.Object
   Momentum

public class Momentum

Remarks

The Momentum describes the degree to which the market trends and is generally applied to the study of price dynamics, and in particular to help identify up or down trends at a specified moment in time.

One Period and Multi Period Versions

For many of the indicators we provide essentially two versions of the same method. The first version evaluates the indicator over the entire period given and the second version evaluates the indicator over all the sub-periods of a given length. Moreover, the version which evaluates over all sub-periods of a given length will return the results as an array where the 1st term of the array will be the value associated with the most recent sub-period, and the previous element corresponding to the previous sub-period and so on.

The naming of these two versions will follow the convention that if the indicator which evaluates over the entire period and returns a single element is named ABCIndicator, then the corresponding indicator over all sub-periods (of a given length) which returns an array will be denoted by ABCIndicatorOverPeriod.

For example, if our source data has N elements then the two versions of a given indicator, where the number of periods used within the sub-periods is n would correspond to:

  1. ABCIndicator - Evaluation the indicator over the whole period of length N.
  2. ABCIndicatorOverPeriod - Will return an array where the first term is the value of the indicator ABCIndicator on the most recent n periods, and the next term is the value of the indicator ABCIndicator on the previous n+1 periods minus the most recent period and so on. That is, for each iterative evaluation 'the window of evaluation' is shifted one place back.

Requirements

Namespace: Indicators

Assembly: WebCab.DelphiWebServices.TA (in WebCab.DelphiWebServices.TA.dll)

See Also

Momentum Members | Indicators Namespace