MQL4 Reference 
Technical indicators iMomentumOnArray
| double iMomentumOnArray( |
double array[], int total, int period, int shift) |
Calculation of the Momentum indicator on data stored in a numeric array.
Unlike iMomentum(...), the iMomentumOnArray function does not take data by symbol name,
timeframe, the applied price. The price data must be previously prepared.
The indicator is calculated from left to right. To access to the array elements as to a series array
(i.e., from right to left), one has to use the ArraySetAsSeries function.
Parameters:
| array[] |
- |
Array with data. |
| total |
- |
The number of items to be counted. |
| period |
- |
Period (amount of bars) for calculation of price changes. |
| shift |
- |
Index of the value taken from the indicator buffer (shift relative to the current bar the given amount of periods ago). |
Sample:
if(iMomentumOnArray(mybuffer,100,12,0)>iMomentumOnArray(mubuffer,100,20,0)) return(0);
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