请教大大一个问题

hangye

_SECTION_BEGIN("MACDPrediction");
/*An MACD, Signal Cross is, in general, a bullish Signal.
Since it comes with a significant delay, it would be important to anticipate this Cross. Some days before the Cross, we often see an MACD turning point. It is interesting to investigate the related conditions AND use them before the end of the session.
The following AFL code will give the necessary next ROC for a higher MACD value.*/
//The probable Cross between MACD AND its Signal, by D. Tsokakis, Feb2005
SetBarsRequired(10000,0);
function EMAn ( Cnext , r3)
{
return ( 2 * Cnext + ( r3 - 1 ) * EMA ( C , r3 ) ) / ( r3 + 1 ) ;
}
function MACDn ( Cnext , r1 , r2 )
{
return EMAn ( Cnext ,r1 ) - EMAn ( Cnext , r2 ) ;
}
r1 = Param( "Fast avg", 12, 2, 200, 1 );
r2 = Param( "Slow avg", 26, 2, 200, 1 );
r3 = Param( "Signal avg", 9, 2, 200, 1 );
det = 500 ;
perc = 25/100 ;
Clast = SelectedValue ( C ) ;
det = 500 ;
perc = 25/100 ;
Clast = SelectedValue ( C ) ;
MACDlast = SelectedValue(MACD());
SIGNALlast = SelectedValue ( Signal ( ) );
Cnextmin = ( 1 - perc ) * Clast ;Cnextmax = ( 1 + perc ) * Clast ;
step = ( Cnextmax - Cnextmin ) / det ;
nextROC1 = -100 * perc ;
nextROC2 = -100 * perc ;
for ( Cnext = Cnextmin ; Cnext <= Cnextmax ; Cnext = Cnext + step )
{
X = MACDn ( Cnext , 12 , 26 ) ;
Y = EMA ( X , 9 ) ;
MACDnext = SelectedValue ( X );
SIGNALnext = SelectedValue ( Y );
NextROC = 100 * ( -1 + Cnext / Clast ) ;
NextROC0 = 100 * ( -1 + Cnext / Clast ) ;
if ( macdnext < SignalLAST )
{
NextROC1 = NextROC ;
}
if ( MACDnext < MACDlast )
{
nextROC2 = nextROC0;
}
}

//Plot ( 0 ,"", colorBlack ,styleDashed ) ;
Plot (nextROC1  ,"", colorRed) ;
Plot ( nextROC2 ,"", colorGreen  ) ;

_SECTION_END();


请教程式如何改 才能得到每日的nextROC1和nextROC2

hangye

Can anybody help me? Thanks

hangye

SelectedValue的问题？

hitrader

Plot (nextROC1  ,"nextROC1", colorRed) ;
Plot ( nextROC2 ,"nextROC2", colorGreen  ) ;

hangye

不行，一样的。只能得到两条直线

hitrader

Title = "NextROC1 = "+nextroc1+"     NextROC2 = "+nextroc2;

hangye

hitrader 發表於 14-5-16 13:38
Title = "NextROC1 = "+nextroc1+"     NextROC2 = "+nextroc2;

只能显示当日的数据 见图

hangye

anybody help me?

kilroy

hangye 發表於 14-5-17 17:49
anybody help me?

把 SelectedValue  去掉試試看唷~~

hangye

还是不行唷，大大

hangye

这段程式码实在难懂