Author: Forte928
geSigmoid
Miscellaneous
It issuies visual alerts to the screenImplements a curve of type %1
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geSigmoid
//+------------------------------------------------------------------+
//|																geSigmoid.mq4		|
//|                      Copyright © 2007, ver 1.0							|
//|                      Forte928           									|
//+------------------------------------------------------------------+
#property copyright "Forte928"
#property link      ""
#define		IndicatorName "geSigmoid"

#property indicator_chart_window
//roperty indicator_separate_window

#property indicator_buffers 1
#property indicator_color1 Tomato
#property indicator_color2 YellowGreen
#property indicator_color3 Wheat
#property indicator_color4 LightSeaGreen

extern int		FirstPoint	= 50;
extern double	Error			= 0.005;
extern int		WidthPoint	= 3;
extern int		WidthLine	= 2;

//double  FreqTOL  =0.0001;//Tolerance of frequency calculation for Method 1

double	FxView1[];
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Work Variables ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
double	TimeBuf1[];

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Initialization program Buffers ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void	InitBufferam(int iBufferSize)
{
	ArrayResize(TimeBuf1,iBufferSize);
	return;
}
void	EmptyBufferam()
{
	ArrayInitialize(TimeBuf1,EMPTY_VALUE);
// -->
	ArrayInitialize(FxView1,EMPTY_VALUE);
	return;
}
void	DoneBufferam()
{
	ArrayResize(TimeBuf1,0);
	return;
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Program Constants ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int		MaxPeriod=0;
int		CalcCount=0;
string	UniqueName="";
double	FxLeft=0;
double	FxRight=0;
int		IxLeft=0;
int		IxRight=0;
int		IxCount=0;
int		Counter=2000;
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Custom indicator initialization function ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int init()
  {
//---- initialization program values  --------------------------------
	MaxPeriod=0;//MathMax(EMAPrd,WinSize);
	InitBufferam(MaxCounter(Counter,MaxPeriod));
	CalcCount=InitCounter(Counter,MaxPeriod);
//---- initialization indicators -------------------------------------
	SetupChartLine(0,FxView1,0,WidthLine,"Sigmoid"+FirstPoint);// SetIndexStyle(0,DRAW_LINE,STYLE_SOLID,1); SetIndexBuffer(0,ValueBuf0);
	
	MathSrand(TimeLocal());
	UniqueName=IndicatorName+MathRand();
	IxLeft=FirstPoint;

//----
   return(0);
  }
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Custom indicator deinitialization function ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int deinit()
  {
//----
	DoneBufferam();	
	ObjectDelete(UniqueName+"LF");
	ObjectDelete(UniqueName+"RG");
//----
   return(0);
  }
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~V~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Start defination ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int start()
{
	if (!StartCounter(IndicatorName,Counter,CalcCount,MaxPeriod)) return(-1);
//------------------------------------------------------------------------------------
	EmptyBufferam();
//+-------------------------- Begin Cycle ---------------------------------------------------+\\
	if (ObjectFind(UniqueName+"LF")<0) {
		ObjectCreate(UniqueName+"LF",OBJ_ARROW,0,0,0);
		ObjectSet(UniqueName+"LF",OBJPROP_TIME1,Time[IxLeft]);
		ObjectSet(UniqueName+"LF",OBJPROP_PRICE1,Low[IxLeft]+10*Point);
		ObjectSet(UniqueName+"LF",OBJPROP_ARROWCODE,5);
		ObjectSet(UniqueName+"LF",OBJPROP_WIDTH,WidthPoint);
	}
	if (ObjectFind(UniqueName+"RG")<0) {
		ObjectCreate(UniqueName+"RG",OBJ_ARROW,0,0,0);
		ObjectSet(UniqueName+"RG",OBJPROP_TIME1,Time[0]);
		ObjectSet(UniqueName+"RG",OBJPROP_PRICE1,High[0]+10*Point);
		ObjectSet(UniqueName+"RG",OBJPROP_ARROWCODE,6);
		ObjectSet(UniqueName+"RG",OBJPROP_WIDTH,WidthPoint);
	}
	IxLeft=iBarShift(NULL,Period(),ObjectGet(UniqueName+"LF",OBJPROP_TIME1),false);
	IxRight=iBarShift(NULL,Period(),ObjectGet(UniqueName+"RG",OBJPROP_TIME1),false);
	IxCount=IxLeft-IxRight+1;
	SetIndexShift(0,IxCount);//(IxLeft-IxRight));
	double Alpha=-MathLog(1/Error-1)/(-IxCount);
	if (Close[IxLeft]>Close[IxRight]) {
		FxLeft=High[IxLeft];
		FxRight=Low[IxRight];
	}
	else {
		FxLeft=Low[IxLeft];
		FxRight=High[IxRight];
	}
	Print(FxLeft,"  ",FxRight);
	for (int Rx=IxCount-1;Rx>=0;Rx--){
		TimeBuf1[Rx+IxCount]=1/(1+MathExp(-Alpha*(-Rx)))*(FxRight-FxLeft)/0.5+FxLeft;
		TimeBuf1[Rx]=1/(1+MathExp(-Alpha*(IxCount-Rx)))*(FxRight-FxLeft)/0.5+FxLeft;
	}

	ArrayCopy(FxView1,TimeBuf1,IxRight,0,IxCount*2);
//	ArrayCopy(FxView2,TimeBuf4,Shift,0,CalcCount);
//	ArrayCopy(FxView3,TimeBuf5,Shift,0,CalcCount);
//	ArrayCopy(FxView4,TimeBuf6,Shift,0,CalcCount);
	
//----
   return(0);
  }
//-----------------------------------------------------------------------------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~														 InitCounter																		~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 int InitCounter(int iPreCount,int iMaxPeriod)
{
	// Rule 1
	//if ((Result==0)||(Result>Bars)) Result=Bars;
	int Result=MaxCounter(iPreCount,iMaxPeriod);
	// Rule 2
	if ((Result+iMaxPeriod)>Bars) Result=Bars-iMaxPeriod;
	// Rule 3
	if (Result<iMaxPeriod) Result=0;
	else Result=Result+iMaxPeriod;
	return(Result);
}
//------------------------------------------ StartCounter --------------------------
bool StartCounter(string WindowName,int iPreCount,int& iCalcCount,int iMaxPeriod)
{
	if ((iPreCount>iCalcCount)||(iPreCount==0)) iCalcCount=InitCounter(iPreCount,iMaxPeriod);
	if (iCalcCount==0) 
	{
		Alert(WindowName+" "+Symbol()+"("+Period()+") - Limited Calculate Period");
		return(false);
	}
	return(true);
	//int iBarCount=IndicatorCounted();
	//if (iBarCount>0) return(true);
	//Print("StartCounter");
	return(false);
}
//------------------------------------------ StartCounter --------------------------
int MaxCounter(int iPreCount,int iMaxPeriod)
{
	int Result=iPreCount;
	// Rule 1
	//if ((Result==0)||(Result>Bars)) Result=Bars;
	if (Result==0) Result=Bars-1;
	if (Result<iMaxPeriod) Result=iMaxPeriod;
	return(Result+iMaxPeriod);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//~~														 Style active Line																~~
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void SetupChartLine(int Index,double& ViewAy[],int Style,int Width,string Label)
{
	switch(Style)
	{
		case 0 : SetIndexStyle(Index,DRAW_LINE,STYLE_SOLID,Width);break;
		case 1 : SetIndexStyle(Index,DRAW_HISTOGRAM,STYLE_SOLID,Width);break;
		case 2 : SetIndexStyle(Index,DRAW_ARROW,STYLE_SOLID,Width);break;
		default : SetIndexStyle(Index,DRAW_LINE,STYLE_SOLID,Width);break;
	}
	if (Label!="") SetIndexLabel(Index,Label);
	SetIndexBuffer(Index,ViewAy);
	return(0);
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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