afl timing functions.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:    AFL Timing functions
//  Author/Uploader: Herman van den bergen 
//  E-mail:          
//  Date/Time Added: 2005-02-19 11:48:19
//  Origin:          
//  Keywords:        
//  Level:           semi-advanced
//  Flags:           function
//  Formula URL:     http://www.amibroker.com/library/formula.php?id=431
//  Details URL:     http://www.amibroker.com/library/detail.php?id=431
//
//------------------------------------------------------------------------------
//
//  Tested with AmiBroker 4.69.0 beta. A few Second-timing functions for
//  general use: GetSecondNum(), GetElapesedSeconds and GetBarsSecsLeft. Copy
//  to indicator, Insert, and open the Param window to test the elapsed time
//  function.
//
//------------------------------------------------------------------------------

Reset = ParamTrigger("Static Variables","Click to Reset");

function GetSecondNum()
	{
	Time 		= Now(4);
	Seconds 	= int(Time%100);
	Minutes 	= int(Time/100%100);
	Hours 	= int(Time/10000%100);
	SecondNum= int(Hours*60*60+Minutes*60+Seconds);
	return SecondNum;
	}

function GetElapsedSeconds( reset ) 
	{
	NowSecs 	= GetSecondNum();
	if( Reset ) StaticVarSet("SecondTimer", NowSecs );
	PrevSecs = StaticVarGet("SecondTimer");
	ESecs = NowSecs - PrevSecs;
	return eSecs;
	}

function GetBarSecsLeft() 
	{
	BarInterval	= Interval();
	NowSecs 		= GetSecondNum();
	PrevSecs 	= StaticVarGet("SecondTimer");
	ESecs 		= BarInterval - (NowSecs - PrevSecs);
	if( eSecs < 0 ) eSecs = 0;
	else if ( eSecs > 60 ) eSecs = 60;
	return eSecs;
	}

if( IsEmpty(StaticVarGet("IsInitialized")) OR Reset)
	{
	StaticVarSet("PrevBarNum",	BarCount-1);
	StaticVarSet("IsInitialized",1);
	}

Plot(C,"C",1,128);

Title =
"\nUse Param() to reset elapsed seconds..."+
"\nSecond Count:     "+NumToStr(GetSecondNum(),1.0,False)+
"\n20-Second Count:  "+NumToStr(int(GetSecondNum()/20),1.0,False)+
"\nElapsed Seconds:  "+NumToStr(GetElapsedSeconds(Reset),1.0,False)+
"\nBar Seconds left: "+NumToStr(GetBarSecsLeft(),1.0,False);