iWPR - MQL4 Documentation

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double iWPR(

string symbol, int timeframe, int period, int shift)

Calculates the Larry William's percent range indicator 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	-	Number of periods for calculation.
shift	-	Index of the value taken from the indicator buffer (shift relative to the current bar the given amount of periods ago).

Sample:

if(iWPR(NULL,0,14,0)>iWPR(NULL,0,14,1)) return(0);