主图指标 DEMA指标 mt4指标类型：趋势指标 是否能用在mt4手机版上：否 是否含有未来函数：无 //+------------------------------------------------------------------+ //| DEMA.mq4 | //| DEMA = 2 * EMA - EMA of EMA | //+------------------------------------------------------------------+ #property link "http://www.forexfactory.com/showthread.php?t=29419" #property indicator_chart_window #property indicator_buffers 1 #property indicator_color1 Red #property indicator_width1 1 //---- input parameters extern int PERIOD =12; //---- indicator buffer double Buffer; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { IndicatorShortName("DEMA("+PERIOD+")"); SetIndexBuffer(0,Buffer); SetIndexStyle(0,DRAW_LINE); } //+------------------------------------------------------------------+ int start() { int limit=Bars-1-IndicatorCounted(); //---- static double lastEMA, lastEMA_of_EMA; double weight=2.0/(1.0+PERIOD); if(IndicatorCounted()==0) { Buffer[limit] =Close[limit]; lastEMA =Close[limit]; lastEMA_of_EMA =Close[limit]; limit--; } //---- // Calculate old bars (not the latest), if necessary for(int i=limit; i > 0; i--) { lastEMA =weight*Close + (1.0-weight)*lastEMA; lastEMA_of_EMA =weight*lastEMA + (1.0-weight)*lastEMA_of_EMA; Buffer=2.0*lastEMA - lastEMA_of_EMA; } //---- // (Re)calculate current bar double EMA =weight*Close[0] + (1.0-weight)*lastEMA, EMA_of_EMA =weight*EMA + (1.0-weight)*lastEMA_of_EMA; Buffer[0]=2.0*EMA - EMA_of_EMA; //---- return(0); } //+------------------------------------------------------------------+DEMA.jpg