//#@Fname=macd2
//#@comment=MACD指标说明
//#|MACD指数平滑异同移动平均线为两条长、短的平滑平均线。
//#|其买卖原则为：
//#|1.DIFF、DEA均为正，DIFF向上突破DEA，买入信号参考。
//#|2.DIFF、DEA均为负，DIFF向下跌破DEA，卖出信号参考。
//#|3.DEA线与k线发生背离，行情可能出现反转信号。
//#|4.分析MACD柱状线，由红变绿(正变负)，卖出信号参考；由绿变红，买入信号参考。
//#|
//#@control=DIFF：收盘价的 Param#1 天（短期）平滑移动平均值减去 Param#2
//#|天（长期）平滑移动平均；
//#|DEA：DIFF的 Param#3 天平滑移动平均值；
//#|MACD：2倍的（DIFF-DEA）。
//#|
//#@FuncType=
//#@style=MACD:Line1027,技术指标,1,0,1,2,0;DIFF:Line2,技术指标,1,0,1,0,30059;DEA:Line2,技术指标,1,0,1,0,30063;ZERO:Line0,0;
//#@availperiod=2147430400
//#@param=SHORT=12.0000000001,5.0000000001,40.0000000001,1;LONG=26.0000000001,10.0000000001,200.0000000001,1;M=9.0000000001,2.0000000001,40.0000000001,1;
//#@isDrawCurve=1
//#@Fdesc=MACD
//#@defaultperiod=12293
//#@coord=D
//#@ordinate=0,0.000000;0,0.000000;4,0.000000;0,0.000000;0,0.000000;0;0,0.000000
//#@@FUNCSPEC@=source
rd:=IF(vol,1,0);
DIFF : EMA(CLOSE,SHORT)*rd- EMA(CLOSE,LONG)*rd;
DEA : EMA(DIFF,M)*rd;
MACD : 2*(DIFF-DEA)*rd;
Zero : 0;
