Kairi Indicator - VertexFX VTL Script

#2
Kairi Indicator Afl

// Price - SMA over X periods divided by SMA over X periods
// http://www.investopedia.com/articles/forex/09/kairi-relative-strength-index.asp
/*
The Kairi Relative Index is considered an oscillator as well as a leading indicator.
The Index calculates a deviation of the current price from its simple moving average
as a percentage of the moving average. By recognizing trending markets that are
overextended, traders hope to capitalize on the downside.
*/

GraphXSpace = 5;
SetChartOptions( 0, 0, 0 );

function Kairi( array, period )
{
return ( ( array - MA( array, period ) ) / MA( array, period ) ) * 100;
}

P = ParamField("Price field",-1);
Periods = Param("Periods", 14, 2, 300, 1, 10 );

Plot( Kairi( P, Periods), "KRI("+Periods +")", ParamColor( "Color", colorCycle ), ParamStyle("Style", styleLine, maskAll ));
PlotGrid( 0, colorBlack );
 

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