R2.efs, ADX.efs, ER.efs, VHF.efs
File Name: R2.efs, ADX.efs, ER.efs, VHF.efs
Description:
Which Trend Indicator Wins? by Markos Katsanos
Formula Parameters:
R2.efs
- Length: 18
- R2 Smooth: 3
- Trend: 0.42
- Max R2: 0.85
- Lag: 10
- LR Crit: 10
- MA Length: 50
ADX.efs
- Length: 14
- Trend: 30
- Max ADX: 42
- Lag: 12
- Crit: 22
- Mult: 1.8
- MA Length: 50
ER.efs
- Length: 24
- ER Smooth: 3
- Trend: 0.36
- Max ER: 0.42
- Lag: 3
- Mult: 2.5
- Crit: 0.26
- MA Length: 50
VHF.efs
- Length: 14
- Trend: 30
- Max VHF: 42
- Lag: 12
- Crit: 22
- Mult: 1.8
- MA Length: 50
Notes:
The related article is copyrighted material. If you are not a subscriber of Stocks & Commodities, please visit www.traders.com.
Download File:
R2.efs
ADX.efs
ER.efs
VHF.efs
R2.efs, ADX.efs, ER.efs, VHF.efs
EFS Code:
R2.efs
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2016. 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:
Which Trend Indicator Wins? by Markos Katsanos
Version: 1.00 08/10/2016
Formula Parameters: Default:
Length 18
R2 Smooth 3
Trend 0.42
Max R2 0.85
Lag 10
LR Crit 10
MA Length 50
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();
function preMain(){
setPriceStudy(false);
setDefaultBarFgColor(Color.RGB(0,148,255),0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(18);
setName("Length");
}
fpArray[x] = new FunctionParameter("Smooth", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(3);
setName("R2 Smooth");
}
fpArray[x] = new FunctionParameter("Trend", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.42);
setName("Trend");
}
fpArray[x] = new FunctionParameter("R2Max", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.85);
setName("Max R2");
}
fpArray[x] = new FunctionParameter("Lag", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(10);
setName("Lag");
}
fpArray[x] = new FunctionParameter("LRcrit", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(10);
setName("LR Crit");
}
fpArray[x] = new FunctionParameter("MALength", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(50);
setName("MA Length");
}
}
var bInit = false;
var bVersion = null;
var xClose = null;
var xR2Lin = null;
var xSlope = null;
var xR2 = null;
var xSMA = null;
function main(Length, Smooth, Trend, R2Max, Lag, LRcrit, MALength){
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (getCurrentBarCount() <= (Length + Smooth + Lag)) return;
if (getBarState() == BARSTATE_ALLBARS){
xClose = null;
xR2Lin = null;
xSlope = null;
xR2 = null;
xSMA = null;
bInit = false;
}
if (!bInit){
xClose = close();
xR2Lin = efsInternal("calc_R2", xClose, Length);
if (xR2Lin.getValue(0) != null){
xSlope = getSeries(xR2Lin, 0);
xR2 = getSeries(xR2Lin,1);
}
xR2 = sma(Smooth, xR2);
xSMA = sma(MALength, xClose);
addBand(Trend, PS_DASH, 1, Color.RGB(195,195,195),0);
bInit = true;
}
var nSlope = xSlope.getValue(0) * 100;
var nR2 = xR2.getValue(0);
if (getCurrentBarIndex() != 0){
nR2_1 = xR2.getValue(-1);
nR2_lag = xR2.getValue(-Lag);
nClose = xClose.getValue(0);
nClose_1 = xClose.getValue(-1);
nSMA = xSMA.getValue(0);
nSMA_1 = xSMA.getValue(-1);
if (Strategy.isLong() && nClose_1 > nSMA_1 && nClose < nSMA)
Strategy.doSell("MA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (Strategy.isShort() && nClose_1 < nSMA_1 && nClose > nSMA)
Strategy.doCover("XMA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
if ((!Strategy.isInTrade()) && nR2_1 < Trend && nR2 >= Trend && nR2 < R2Max && nR2 > nR2_lag){
if (nClose > nSMA && nSlope > LRcrit)
Strategy.doLong("STRONGTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA && nSlope <= LRcrit)
Strategy.doShort("STRONGDOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
if (Strategy.isLong()) setBarBgColor(Color.RGB(0,60,0));
else if (Strategy.isShort()) setBarBgColor(Color.RGB(170,46,46));
}
return nR2;
}
function calc_R2(xClose, Length){
var X = 0, Y = 0, XY = 0, X2 = 0, Y2 = 0;
for (var i = 0; i < Length; i++){
var xVal = xClose.getValue(-i);
X += (i + 1);
Y += xVal;
XY += ((i + 1) * xVal);
X2 += ((i + 1) * (i + 1));
Y2 += (xVal * xVal);
}
var xAvg = X / Length;
var yAvg = Y / Length;
var aSum1 = 0, aSum2 = 0;
for (var i = 0; i < Length; i++){
aSum1 += (i-xAvg) * (xClose.getValue(-i)-yAvg);
aSum2 += (i-xAvg) * (i-xAvg);
}
var nSlope = aSum1 / aSum2;
var R2 = Math.pow((Length * XY - X * Y) / Math.sqrt((Length * X2 - X * X) * (Length * Y2 - Y*Y)),2);
return new Array(nSlope, R2);
}
function verify(){
var b = false;
if (getBuildNumber() < 779){
drawTextAbsolute(5, 35, "This study requires version 10.6 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;
}
ADX.efs
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2016. 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:
Which Trend Indicator Wins? by Markos Katsanos
Version: 1.00 08/10/2016
Formula Parameters: Default:
Length 14
Trend 30
Max ADX 42
Lag 12
Crit 22
Mult 1.8
MA Length 50
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();
function preMain(){
setPriceStudy(false);
setDefaultBarFgColor(Color.RGB(0,148,255),0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(14);
setName("Length");
}
fpArray[x] = new FunctionParameter("Trend", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(100);
setDefault(30);
setName("Trend");
}
fpArray[x] = new FunctionParameter("AdxMax", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(100);
setDefault(42);
setName("Max ADX");
}
fpArray[x] = new FunctionParameter("Lag", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(12);
setName("Lag");
}
fpArray[x] = new FunctionParameter("Crit", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(100);
setDefault(22);
setName("Crit");
}
fpArray[x] = new FunctionParameter("Mult", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0.01);
setUpperLimit(100);
setDefault(1.8);
setName("Mult");
}
fpArray[x] = new FunctionParameter("MALength", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(50);
setName("MA Length");
}
}
var bInit = false;
var bVersion = null;
var xClose = null;
var xADX = null;
var xSMA = null;
var xLADX = null;
function main(Length, Trend, AdxMax, Lag, Crit, Mult, MALength){
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (getCurrentBarCount() <= Length) return;
if (getBarState() == BARSTATE_ALLBARS){
xClose = null;
xADX = null;
xSMA = null;
xLADX = null;
bInit = false;
}
if (!bInit){
xClose = close();
xADX = adx(Length,Length);
xLADX = lowerDonchian(Lag, xADX);
xSMA = sma(MALength, xClose);
addBand(Trend, PS_DASH, 1, Color.RGB(195,195,195),1);
bInit = true;
}
var nADX = xADX.getValue(0);
if (getCurrentBarIndex() != 0){
var nSMA = xSMA.getValue(0);
var nSMA_1 = xSMA.getValue(-1);
var nADX_1 = xADX.getValue(-1);
var nClose = xClose.getValue(0);
var nClose_1 = xClose.getValue(-1);
var nLADX = xLADX.getValue(0);
if (Strategy.isLong() && nClose_1 > nSMA_1 && nClose < nSMA)
Strategy.doSell("MA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (Strategy.isShort() && nClose_1 < nSMA_1 && nClose > nSMA)
Strategy.doCover("XMA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
if (!Strategy.isInTrade()){
if (nADX_1 < Trend && nADX > Trend && nADX < AdxMax){
if (nClose > nSMA)
Strategy.doLong("STRONGTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA)
Strategy.doShort("STRONGDOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
else if (nADX > (Mult * nLADX) && nADX_1 < Crit && nADX > Crit){
if (nClose > nSMA)
Strategy.doLong("TREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA)
Strategy.doShort("DOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
}
if (Strategy.isLong()) setBarBgColor(Color.RGB(0,60,0));
else if (Strategy.isShort()) setBarBgColor(Color.RGB(170,46,46))
}
return xADX.getValue(0);
}
function verify(){
var b = false;
if (getBuildNumber() < 779){
drawTextAbsolute(5, 35, "This study requires version 10.6 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;
}
ER.efs
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2016. 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:
Which Trend Indicator Wins? by Markos Katsanos
Version: 1.00 08/10/2016
Formula Parameters: Default:
Length 24
ER Smooth 3
Trend 0.36
Max ER 0.42
Lag 3
Mult 2.5
Crit 0.26
MA Length 50
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();
function preMain(){
setPriceStudy(false);
setDefaultBarFgColor(Color.RGB(0,148,255),0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(24);
setName("Length");
}
fpArray[x] = new FunctionParameter("Smooth", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(3);
setName("ER Smooth");
}
fpArray[x] = new FunctionParameter("Trend", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.36);
setName("Trend");
}
fpArray[x] = new FunctionParameter("ERMax", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.42);
setName("Max ER");
}
fpArray[x] = new FunctionParameter("Lag", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(3);
setName("Lag");
}
fpArray[x] = new FunctionParameter("Mult", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0.01);
setUpperLimit(100);
setDefault(2.5);
setName("Mult");
}
fpArray[x] = new FunctionParameter("Crit", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.26);
setName("Crit");
}
fpArray[x] = new FunctionParameter("MALength", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(50);
setName("MA Length");
}
}
var bInit = false;
var bVersion = null;
var xClose = null;
var xER = null;
var xSMA = null;
var xLER = null;
function main(Length, Smooth, Trend, ERMax, Lag, Mult, Crit, MALength){
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (getCurrentBarCount() <= (Length + Smooth + Lag)) return;
if (getBarState() == BARSTATE_ALLBARS){
xClose = null;
xER = null;
xSMA = null;
xLER = null;
bInit = false;
}
if (!bInit){
xClose = close();
xER = efsInternal("calc_ER",xClose,Length);
xER = sma(Smooth, xER);
xLER = lowerDonchian(Lag, xER);
xSMA = sma(MALength, xClose);
addBand(Trend, PS_DASH, 1, Color.RGB(195,195,195),1);
bInit = true;
}
var nER = xER.getValue(0);
if (getCurrentBarIndex() != 0){
var nER_1 = xER.getValue(-1);
var nER_lag = xER.getValue(-Lag);
var nLER = xLER.getValue(0);
var nSMA = xSMA.getValue(0);
var nSMA_1 = xSMA.getValue(-1);
var nClose = xClose.getValue(0);
var nClose_1 = xClose.getValue(-1);
if (Strategy.isLong() && nClose_1 > nSMA_1 && nClose < nSMA)
Strategy.doSell("MA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (Strategy.isShort() && nClose_1 < nSMA_1 && nClose > nSMA)
Strategy.doCover("XMA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
if (!Strategy.isInTrade()){
if (nER_1 < Trend && nER > Trend && nER < ERMax && nER > nER_lag){
if (nClose > nSMA)
Strategy.doLong("STRONGTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA)
Strategy.doShort("STRONGDOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
else if (nER > (Mult * nLER) && nER_1 < Crit && nER > Crit){
if (nClose > nSMA)
Strategy.doLong("TREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose > nSMA)
Strategy.doShort("DOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
}
if (Strategy.isLong()) setBarBgColor(Color.RGB(0,60,0));
else if (Strategy.isShort()) setBarBgColor(Color.RGB(170,46,46));
}
return nER;
}
function calc_ER(Close,Length){
var nNetCh = Math.abs(Close.getValue(0) - Close.getValue(-Length));
var nSum = 0;
for (var i = 0; i < Length; i++){
nSum += Math.abs(Close.getValue(-i) - Close.getValue(-i-1));
}
if (nSum == 0) return;
ER = nNetCh / nSum;
return ER;
}
function verify(){
var b = false;
if (getBuildNumber() < 779){
drawTextAbsolute(5, 35, "This study requires version 10.6 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;
}
VHF.efs
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2016. 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:
Which Trend Indicator Wins? by Markos Katsanos
Version: 1.00 08/10/2016
Formula Parameters: Default:
Length 14
Trend 30
Max VHF 42
Lag 12
Crit 22
Mult 1.8
MA Length 50
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();
function preMain(){
setPriceStudy(false);
setDefaultBarFgColor(Color.RGB(0,148,255),0);
var x=0;
fpArray[x] = new FunctionParameter("Length", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(36);
setName("Length");
}
fpArray[x] = new FunctionParameter("Trend", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.38);
setName("Trend");
}
fpArray[x] = new FunctionParameter("VHFMax", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0);
setUpperLimit(1);
setDefault(0.45);
setName("Max VHF");
}
fpArray[x] = new FunctionParameter("Lag", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(10);
setName("Lag");
}
fpArray[x] = new FunctionParameter("Crit", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1);
setDefault(0.24);
setName("Crit");
}
fpArray[x] = new FunctionParameter("Mult", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(0.01);
setUpperLimit(100);
setDefault(1.5);
setName("Mult");
}
fpArray[x] = new FunctionParameter("MALength", FunctionParameter.NUMBER);
with(fpArray[x++]){
setLowerLimit(1);
setUpperLimit(1000);
setDefault(50);
setName("MA Length");
}
}
var bInit = false;
var bVersion = null;
var xClose = null;
var xVHF = null;
var xSMA = null;
var xLVHF = null;
function main(Length, Trend, VHFMax, Lag, Crit, Mult, MALength){
if (bVersion == null) bVersion = verify();
if (bVersion == false) return;
if (getCurrentBarCount() <= Length) return;
if (getBarState() == BARSTATE_ALLBARS){
xClose = null;
xVHF = null;
xSMA = null;
xLVHF = null;
xHighest = null;
xLowest = null;
bInit = false;
}
if (!bInit){
xClose = close();
xVHF = efsInternal("calc_VHF",xClose,Length);
xLVHF = lowerDonchian(Lag, xVHF);
xSMA = sma(MALength, xClose);
addBand(0.35, PS_DASH, 1, Color.RGB(195,195,195),1);
bInit = true;
}
nVHF = xVHF.getValue(0);
if (getCurrentBarIndex() != 0){
var nSMA = xSMA.getValue(0);
var nSMA_1 = xSMA.getValue(-1);
var nVHF_1 = xVHF.getValue(-1);
var nVHF_lag = xVHF.getValue(-Lag);
var nClose = xClose.getValue(0);
var nClose_1 = xClose.getValue(-1);
var nLVHF = xLVHF.getValue(0);
if (Strategy.isLong() && nClose_1 > nSMA_1 && nClose < nSMA)
Strategy.doSell("MA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (Strategy.isShort() && nClose_1 < nSMA_1 && nClose > nSMA)
Strategy.doCover("XMA", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
if (!Strategy.isInTrade()){
if (nVHF_1 < Trend && nVHF > Trend && nVHF < VHFMax && nVHF > nVHF_lag){
if (nClose > nSMA)
Strategy.doLong("STRONGTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA)
Strategy.doShort("STRONGDOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
else if (nVHF > (Mult * nLVHF) && nVHF_1 < Crit && nVHF > Crit){
if (nClose > nSMA)
Strategy.doLong("TREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
else if (nClose < nSMA)
Strategy.doShort("DOWNTREND", Strategy.MARKET, Strategy.NEXTBAR, Strategy.DEFAULT);
}
}
if (Strategy.isLong()) setBarBgColor(Color.RGB(0,60,0));
else if (Strategy.isShort()) setBarBgColor(Color.RGB(170,46,46))
}
return nVHF;
}
var xHighest = null;
var xLowest = null;
function calc_VHF(Close,Length){
if (getBarState() == BARSTATE_ALLBARS){
xHighest = upperDonchian(Length,Close);
xLowest = lowerDonchian(Length,Close);
}
var nHighest = xHighest.getValue(0);
var nLowest = xLowest.getValue(0);
if (nHighest == null || nLowest == null) return;
var nSum = 0;
for (var i = 0; i < Length; i++){
nSum += Math.abs(Close.getValue(-i) - Close.getValue(-i-1));
}
if (nSum == 0) return;
VHF = (nHighest - nLowest) / nSum;
return VHF;
}
function verify(){
var b = false;
if (getBuildNumber() < 779){
drawTextAbsolute(5, 35, "This study requires version 10.6 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;
}