ma difference 20 period.afl

一个更精度的平滑涵数, 可用于股票交易系统.用于Amibroker 平台

//------------------------------------------------------------------------------
//
//  Formula Name:    MA Difference 20 Period
//  Author/Uploader: Larry Lovrencic 
//  E-mail:          [e-mail]
//  Date/Time Added: 2001-09-02 21:06:20
//  Origin:          
//  Keywords:        moving average
//  Level:           basic
//  Flags:           indicator
//  Formula URL:     http://www.amibroker.com/library/formula.php?id=104
//  Details URL:     http://www.amibroker.com/library/detail.php?id=104
//
//------------------------------------------------------------------------------
//
//  This indicator displays how far the closing price is above or below a 20
//  period moving average in % terms. It is displayed as a histogram and the
//  bars are green if the closing price is above the MA and red if the closing
//  price is below the MA.
//
//  T may be changed to alter the MA period. ie Change T=20 to T=200 for the
//  200 period MA.
//
//  /*MA Diff 20 by Larry Lovrencic*/
//
//  T=20; /*Time Period for MA*/
//
//  KMA=((C-MA(C,T))/MA(C,T))*100;
//
//  GRAPH0=KMA;
//
//  GRAPH0STYLE=2+4;
//
//  GRAPH0BARCOLOR=iif(KMA>0,5,4);
//
//  graphxspace=5;
//
//  title=name()+" "+date()+" The Close is
//  "+writeval(abs(KMA),format=1.2)+"%"+writeif(KMA>0," above"," below")+" the
//  20 period MA";
//
//  Mark Grid lines:
//
//  Level 0
//
//  Limits
//
//  Show dates
//
//  Percent
//
//  Middle
//
//------------------------------------------------------------------------------

/*MA Diff 20 by Larry Lovrencic*/
T=20; /*Time Period for MA*/
KMA=((C-MA(C,T))/MA(C,T))*100;   
GRAPH0=KMA;
GRAPH0STYLE=2+4;
GRAPH0BARCOLOR=iif(KMA>0,5,4);
graphxspace=5;

title=name()+" "+date()+" The Close is "+writeval(abs(KMA),format=1.2)+"%"+writeif(KMA>0," above"," below")+" the 20 period MA";