here is how you do this, regards, Ed
SetBarsRequired(sbrAll,sbrAll); emaPeriod = 20; lookBackPeriod = 30; xover = Cross(C,EMA(C,emaPeriod)); // cross over numxover = Sum(xover,LookBackPeriod); // number of crossovers in lookBackPeriod Buy = xover AND numxover <= 1; BuyPrice = C; SetChartOptions(0, chartShowDates); Plot( C, "\nCandle",colorWhite, styleCandle ); Plot(EMA(C,emaPeriod),"\nEMA(C,emaPeriod)",colorYellow,1); PlotShapes(IIf(Buy,shapeUpArrow,shapeNone),colorGreen,0,L,-15); PlotShapes(IIf(Buy,shapeHollowUpArrow,shapeNone),colorWhite,0,L,-15); PlotShapes(IIf(Buy,shapeHollowSmallCircle,shapeNone),colorWhite,0,BuyPrice,0); From: jab901 Sent: Tuesday, August 24, 2010 9:51 PM To: amibroker@yahoogroups.com Subject: [amibroker] If more than 1 ema crossover has occurred in the last 30 days ignore. How can I program my system to only take signals when there has been 1 ema crossover or less in the last 30 days? This is similar to the turtle traders logic whereby they only took signals if the last signal to be generated would have resulted in a profit... This is in order to try and avoid whipsaws. Please can anyone help? Thanks
