Direction of Change [DirChange]

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The Direction of Change function determines the direction that a field has changed over a given period of time. Parameters ------------------ Data            The data to use in the calculation. This is typically a field in a data series or a calculated value. Period          The number of bars of data to include in the calculation, not including the current day.                     For example, a period of 3 compares the current day with the value three bars ago. Function Value ------------------------ This function determines the direction that a field has changed over a given period of time. Value    Meaning ---------------------------    -1       Value decreased    0        Value unchanged    1        Value increased The Direction of Change at the beginning of a data series is not defined until there are enough values to fill the given period. Close     DirChange(Close,1) ---------------------------------------------    1    3                   1    4                   1    6                   1    6                   0    5                  -1