Description:
Stochastic Crossover
Formula Parameters:
nLength : 7
nSmoothing : 1
nDLength : 3
Overbought : 80
Oversold : 20
Notes:
This back testing strategy generates a long trade at the Open of the following
bar when the %K line crosses below the %D line and both are above the Overbought level.
It generates a short trade at the Open of the following bar when the %K line
crosses above the %D line and both values are below the Oversold level.
Download File:
strStochCrsvr.efs
EFS Code:
PHP Code:
/*********************************
Provided By:
eSignal (Copyright c eSignal), a division of Interactive Data
Corporation. 2009. 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:
Stochastic Crossover
Version: 1.0 05/12/2009
Formula Parameters: Default:
nLength 7
nSmoothing 1
nDLength 3
Overbought 80
Oversold 20
Notes:
This back testing strategy generates a long trade at the Open of the following
bar when the %K line crosses below the %D line and both are above the Overbought level.
It generates a short trade at the Open of the following bar when the %K line
crosses above the %D line and both values are below the Oversold level.
**********************************/
var fpArray = new Array();
var bInit = false;
function preMain() {
setPriceStudy(true);
setColorPriceBars(true);
setStudyTitle("Stochastic Crossover");
setDefaultPriceBarColor(Color.black);
var x = 0;
fpArray[x] = new FunctionParameter("nLength", FunctionParameter.NUMBER);
with(fpArray[x++]) {
setLowerLimit(1);
setDefault(7);
}
fpArray[x] = new FunctionParameter("nSmoothing", FunctionParameter.NUMBER);
with(fpArray[x++]) {
setLowerLimit(1);
setDefault(1);
}
fpArray[x] = new FunctionParameter("nDLength", FunctionParameter.NUMBER);
with(fpArray[x++]) {
setLowerLimit(1);
setDefault(3);
}
fpArray[x] = new FunctionParameter("Oversold", FunctionParameter.NUMBER);
with(fpArray[x++]) {
setLowerLimit(1);
setDefault(20);
}
fpArray[x] = new FunctionParameter("Overbought", FunctionParameter.NUMBER);
with(fpArray[x++]) {
setLowerLimit(1);
setDefault(80);
}
}
var xStochK = null;
var xStochD = null;
function main(nLength, nSmoothing, nDLength, Oversold, Overbought) {
var nBarState = getBarState();
if (nBarState == BARSTATE_ALLBARS) {
if (nLength == null) nLength = 7;
if (nSmoothing == null) nSmoothing = 1;
if (nDLength == null) nDLength = 3;
if (Overbought == null) Overbought = 80;
if (Oversold == null) Oversold = 20;
}
if (bInit == false) {
xStochK = stochK(nLength, nSmoothing, nDLength);
xStochD = stochD(nLength, nSmoothing, nDLength);
bInit = true;
}
if(getCurrentBarIndex() == 0) return;
var vFast = xStochK.getValue(0);
var vSlow = xStochD.getValue(0);
if(vFast == null || vSlow == null) return;
if(vFast < vSlow && vFast > Overbought && vSlow > Overbought && !Strategy.isLong())
Strategy.doLong("Long", Strategy.MARKET, Strategy.NEXTBAR);
if(vFast >= vSlow && vFast < Oversold && vSlow < Oversold && !Strategy.isShort())
Strategy.doShort("Short", Strategy.MARKET, Strategy.NEXTBAR);
if(Strategy.isLong())
setPriceBarColor(Color.lime);
else if(Strategy.isShort())
setPriceBarColor(Color.red);
return;
}