mom
Change (Difference from historical value)
mom(source, length)
Parameters
Change - change(source, length)
Difference from historical value.
- source (field): Data series
- length (int): Periods to look back
Formula
change = source - source[length]
Examples
change(close, 1) > 0; // positive gain from prior bar
change(high, 5); < 0 // lower high from 5 bars ago
change(volume, 10) >= volume[10]; // volume more than doubled from 10 bars ago
Returns
Float (positive = increase, negative = decrease)