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MQL4 Reference  Technical indicators  iADX

 
double iADX( string symbol, int timeframe, int period, int applied_price, int mode, int shift)
Calculates the Movement directional index and returns its value.
Parameters:
symbol   -   Symbol the data of which should be used to calculate indicator. NULL means the current symbol.
timeframe   -   Timeframe. It can be any of Timeframe enumeration values. 0 means the current chart timeframe.
period   -   Averaging period for calculation.
applied_price   -   Applied price. It can be any of Applied price enumeration values.
mode   -   Indicator line index. It can be any of the Indicators line identifiers enumeration value.
shift   -   Index of the value taken from the indicator buffer (shift relative to the current bar the given amount of periods ago).
Sample:
if(iADX(NULL,0,14,PRICE_HIGH,MODE_MAIN,0)>iADX(NULL,0,14,PRICE_HIGH,MODE_PLUSDI,0)) return(0);