ABillW_FractalLine.efs EFSLibrary - Discussion Board
File Name: ABillW_FractalLine.efs
Description:
Bill Williams. FractalLine
Formula Parameters:
Strength: 2
Notes:
According to Bill Williams, one should enter the market after the new price
top (for long positions) or bottom (for short positions) has been broken
through. The identification here is based on defining the genuine fractal
formation; an upward fractal is detected if there is a row (at least three)
increasing values and after the local top has been achieved, bars (at least
two bars) show a constant descent. So the model requires at least 5 bars of
which the middle one is the local top (upward fractal) or the local bottom
(downward fractal) Entry orders according to this concept are usually posted
as stop orders activated after the price breaks through a preset level, where
the identification of the market`s leaving the previous price corridor takes place.
This indicator displays such levels, relative to which one decided whether the
price has broken out of the previous corridor.
Download File:
ABillW_FractalLine.efs
EFS Code:
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2008. All rights reserved. This sample eSignal
Formula Script (EFS) is for educational purposes only and may be
modified and saved under a new file name. eSignal is not responsible
for the functionality once modified. eSignal reserves the right
to modify and overwrite this EFS file with each new release.
Description:
Bill Williams. FractalLine
Version: 1.0 10/14/2008
Notes:
According to Bill Williams, one should enter the market after the new price
top (for long positions) or bottom (for short positions) has been broken
through. The identification here is based on defining the genuine fractal
formation; an upward fractal is detected if there is a row (at least three)
increasing values and after the local top has been achieved, bars (at least
two bars) show a constant descent. So the model requires at least 5 bars of
which the middle one is the local top (upward fractal) or the local bottom
(downward fractal) Entry orders according to this concept are usually posted
as stop orders activated after the price breaks through a preset level, where
the identification of the market`s leaving the previous price corridor takes place.
This indicator displays such levels, relative to which one decided whether the
price has broken out of the previous corridor.
Formula Parameters: Default:
Strength 2
**********************************/
var fpArray = new Array();
function preMain() {
setPriceStudy(true);
setStudyTitle("FractalLine");
setCursorLabelName("BuyFractal", 0);
setCursorLabelName("SellFractal", 1);
setDefaultBarFgColor(Color.blue, 0);
setDefaultBarFgColor(Color.red, 1);
var x=0;
fpArray[x] = new FunctionParameter("Strength", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setDefault(2);
}
}
function main(Strength) {
var nBarState = getBarState();
var Price = 0;
var SwingLow = 0;
var SwingHigh = 0;
var J = Strength;
var Found = false;
var Counter = 0;
var X = 0;
var Truth = false;
if(nBarState == BARSTATE_ALLBARS) {
if (Strength == null) Strength = 2;
}
for (J = Strength;(J < 80)&&(Found == false); J++)
{
Price = low(-J);
X = J + 1;
Truth = true;
for (X = (J + 1); ((X - J) <= Strength)&&(Truth); X++)
{
if (Price > low(-X)) Truth = false;
}
X = J - 1;
for (X = (J - 1);((J - X) <= Strength)&&(Truth); X--)
{
if (Price >= low(-X)) Truth = false;
}
if (Truth) Counter++;
if (Counter >= 1) Found = true;
}
if (Found) SwingLow = Price;
else SwingLow = -1;
J = Strength;
Found = false;
Counter = 0;
for (J = Strength;(J < 80)&&(Found == false); J++)
{
Price = high(-J);
X = J + 1;
Truth = true;
for (X = (J + 1); ((X - J) <= 2)&&(Truth); X++)
{
if (Price < high(-X)) Truth = false;
}
X = J - 1;
for (X = (J - 1);((J - X) <= 2)&&(Truth); X--)
{
if (Price <= high(-X)) Truth = false;
}
if (Truth) Counter++;
if (Counter >= 1) Found = true;
}
if (Found) SwingHigh = Price;
else SwingHigh = -1;
var Res1 = null;
var Res2 = null;
if (SwingHigh > -1) Res1 = SwingHigh;
if (SwingLow > -1) Res2 = SwingLow;
return new Array(Res1, Res2);
}