Kayakkal_VPI.efs, Kayakkal_VPI_Strategy.efs
File Name: Kayakkal_VPI.efs, Kayakkal_VPI_Strategy.efs
Description:
Volatility Percentage Index
Volatility Percentage Index Strategy
Formula Parameters:
Notes:
The related article is copyrighted material. If you are not a subscriber of Stocks & Commodities, please visit www.traders.com.
Download File:
Kayakkal_VPI.efs
Kayakkal_VPI_Strategy.efs
EFS Code:
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2010. 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:
Volatility Percentage Index
Version: 1.00 06/07/2010
Formula Parameters: Default:
Notes:
The related article is copyrighted material. If you are not a subscriber
of Stocks & Commodities, please visit www.traders.com.
**********************************/
var fpArray = new Array();
var bInit = false;
var bVersion = null;
function preMain() {
setPriceStudy(false);
setShowCursorLabel(true);
setShowTitleParameters(false);
setStudyTitle("VPI");
setCursorLabelName("VPI", 0);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE, 0);
setDefaultBarThickness(2, 0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setName("Length");
setLowerLimit(1);
setDefault(64);
}
fpArray[x] = new FunctionParameter("X", FunctionParameter.NUMBER);
with(fpArray[x++]){
setName("X");
setDefault(1);
}
}
var xVPI = null;
function main(Length, X) {
var nBarState = getBarState();
var nVPI = 0;
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (nBarState == BARSTATE_ALLBARS) {
if (Length == null) Length = 64;
if (X == null) X = 1;
}
if (!bInit) {
xVPI = efsInternal("Calc_VPI", Length);
addBand(0, PS_SOLID, 1, Color.lightgrey, "Zero");
addBand(X, PS_SOLID, 1, Color.red, "X");
bInit = true;
}
nVPI = xVPI.getValue(0);
if (nVPI == null) return;
return nVPI;
}
var bSecondInit = false;
var xClose = null;
var xATR = null;
function Calc_VPI(Length) {
var nRes = 0;
var nClose = 0;
var nATR = 0;
if (!bSecondInit) {
xClose = close();
xATR = atr(Length);
bSecondInit = true;
}
nClose = xClose.getValue(0);
nATR = xATR.getValue(0);
if (nATR == null) return;
nRes = nATR / nClose * 100;
return nRes;
}
function verify() {
var b = false;
if (getBuildNumber() < 779) {
drawTextAbsolute(5, 35, "This study requires version 8.0 or later.",
Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
null, 13, "error");
drawTextAbsolute(5, 20, "Click HERE to upgrade.@URL=http://www.esignal.com/download/default.asp",
Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
null, 13, "upgrade");
return b;
} else {
b = true;
}
return b;
}
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2010. 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:
Volatility Percentage Index Strategy
Version: 1.00 06/07/2010
Formula Parameters: Default:
Notes:
The related article is copyrighted material. If you are not a subscriber
of Stocks & Commodities, please visit www.traders.com.
**********************************/
var fpArray = new Array();
var bInit = false;
var bVersion = null;
function preMain() {
setPriceStudy(false);
setShowCursorLabel(true);
setShowTitleParameters(false);
setStudyTitle("VPI Strategy");
setCursorLabelName("VPI", 0);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE, 0);
setDefaultBarThickness(2, 0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setName("Length");
setLowerLimit(1);
setDefault(64);
}
fpArray[x] = new FunctionParameter("X", FunctionParameter.NUMBER);
with(fpArray[x++]){
setName("X");
setDefault(1);
}
fpArray[x] = new FunctionParameter("LotSize", FunctionParameter.NUMBER);
with(fpArray[x++]){
setName("Lot Size");
setDefault(1);
}
}
var xVPI = null;
function main(Length, X, LotSize) {
var nBarState = getBarState();
var nVPI = 0;
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (getCurrentBarIndex() == 0) return;
if (nBarState == BARSTATE_ALLBARS) {
if (Length == null) Length = 64;
if (X == null) X = 1;
if (LotSize == null) LotSize = 1;
}
if (!bInit) {
xVPI = efsInternal("Calc_VPI", Length);
addBand(0, PS_SOLID, 1, Color.lightgrey, "Zero");
addBand(X, PS_SOLID, 1, Color.red, "X");
bInit = true;
}
nVPI = xVPI.getValue(0);
if (nVPI == null) return;
if (nVPI < X) {
if (Strategy.isShort()) {
Strategy.doCover("Exit Short", Strategy.MARKET, Strategy.NEXTBAR, Strategy.ALL);
}
Strategy.doLong("Long", Strategy.MARKET, Strategy.NEXTBAR, LotSize);
}
if (nVPI > X) {
if (Strategy.isLong()) {
Strategy.doSell("Exit Long", Strategy.MARKET, Strategy.NEXTBAR, Strategy.ALL);
}
Strategy.doShort("Short", Strategy.MARKET, Strategy.NEXTBAR, LotSize);
}
if(Strategy.isLong()) {
setBarBgColor(Color.lime, 0, 0, 10);
} else {
if(Strategy.isShort()) {
setBarBgColor(Color.red, 0, 0, 10);
} else {
setBarBgColor(Color.white, 0, 0, 10);
}
}
return nVPI;
}
var bSecondInit = false;
var xClose = null;
var xATR = null;
function Calc_VPI(Length) {
var nRes = 0;
var nClose = 0;
var nATR = 0;
if (!bSecondInit) {
xClose = close();
xATR = atr(Length);
bSecondInit = true;
}
nClose = xClose.getValue(0);
nATR = xATR.getValue(0);
if (nATR == null) return;
nRes = nATR / nClose * 100;
return nRes;
}
function verify() {
var b = false;
if (getBuildNumber() < 779) {
drawTextAbsolute(5, 35, "This study requires version 8.0 or later.",
Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
null, 13, "error");
drawTextAbsolute(5, 20, "Click HERE to upgrade.@URL=http://www.esignal.com/download/default.asp",
Color.white, Color.blue, Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,
null, 13, "upgrade");
return b;
} else {
b = true;
}
return b;
}