Stoch and sma

[mplogos]

I would like to replace the MACD in this efs with a 3/16 simple oscillator which is centered on the Stochastics. How can I get it to calculate simple instead of exponential? Do I change the default to true on the bottom text and just change the values for the MACD? Thanks. Mike

function preMain() {
setStudyTitle("Stoch and MACD");
setStudyMin(-.4);
setStudyMax(.4);
setCursorLabelName("Stoch K" ,0);
setCursorLabelName("Stoch D" ,1);
setCursorLabelName("Signal" ,2);
setCursorLabelName("MACD" ,3);
setCursorLabelName("Hist" ,4);
addBand(.3, PS_DASH, 1, Color.lightgrey);
addBand(-.3, PS_DASH, 1, Color.lightgrey);
setPlotType(PLOTTYPE_HISTOGRAM, 4);
setDefaultBarThickness(1, 1);


setDefaultBarFgColor(Color.lightyellow, 0); //%K
setDefaultBarFgColor(Color.blue, 1); // %D
setDefaultBarFgColor(Color.black, 2); // Signal
setDefaultBarFgColor(Color.black, 3); // MACD
setDefaultBarFgColor(Color.red, 4); // Hist


var fp1 = new FunctionParameter("nKlength", FunctionParameter.NUMBER);
fp1.setName("Stoch %K Length");
fp1.setLowerLimit(1);
fp1.setDefault(21);

var fp2 = new FunctionParameter("nKsmooth", FunctionParameter.NUMBER);
fp2.setName("Stoch %K Smoothing");
fp2.setLowerLimit(1);
fp2.setDefault(8);

var fp3 = new FunctionParameter("nDlength", FunctionParameter.NUMBER);
fp3.setName("Stoch %D Length");
fp3.setLowerLimit(1);
fp3.setDefault(4);

var fp4 = new FunctionParameter("nFastLength", FunctionParameter.NUMBER);
fp4.setName("MACD Fast Length");
fp4.setLowerLimit(1);
fp4.setDefault(12);

var fp5 = new FunctionParameter("nSlowLength", FunctionParameter.NUMBER);
fp5.setName("MACD Slow Length");
fp5.setLowerLimit(1);
fp5.setDefault(21);

var fp6 = new FunctionParameter("nSignalSmooth", FunctionParameter.NUMBER);
fp6.setName("MACD Signal Smoothing");
fp6.setLowerLimit(1);
fp6.setDefault(8);

var fp7 = new FunctionParameter("sPriceSource", FunctionParameter.STRING);
fp7.setName("MACD Price Source");

fp7.setDefault("Close");

var fp8 = new FunctionParameter("bSimpleMA", FunctionParameter.STRING);
fp8.setName("MACD Simple MA");

fp8.setDefault("false");

//addBand(0, PS_SOLID, 1, Color.black, "zero");
}

var study1 = null;
var study2 = null;

function main(nKlength, nKsmooth, nDlength, nFastLength, nSlowLength,
nSignalSmooth, sPriceSource, bSimpleMA) {

if (study1 == null || study2 == null) {
study1 = new StochStudy(nKlength, nKsmooth, nDlength);
study2 = new MACDStudy(nFastLength, nSlowLength, nSignalSmooth, sPriceSource, eval(bSimpleMA));
}

var vK = study1.getValue(StochStudy.FAST);
var vD = study1.getValue(StochStudy.SLOW);
if (vK == null || vD == null) return;

var vSignal = study2.getValue(MACDStudy.SIGNAL);
var vMACD = study2.getValue(MACDStudy.MACD);
var vHist = study2.getValue(MACDStudy.HIST);
if (vSignal == null || vMACD == null || vHist == null) return;


vK = (vK - 50)/100;
vD = (vD - 50)/100;

if(vHist<0)setBarFgColor(Color.red,4);
if(vHist>=0)setBarFgColor(Color.lime,4);

return new Array(vK, vD, vSignal, vMACD, vHist);

[ACM]

Mike
Yes, set the MACD Simple MA to "true" and change the values of the MACD to 3-16-1.
You may also want to implement the following changes to the efs

Substitute

var fp8 = new FunctionParameter("bSimpleMA", FunctionParameter.STRING);
fp8.setName("MACD Simple MA");

fp8.setDefault("false");

with the following

var fp8 = new FunctionParameter("bSimpleMA", FunctionParameter.BOOLEAN);
fp8.setName("MACD Simple MA");

fp8.setDefault(false);

and substitute

study2 = new MACDStudy(nFastLength, nSlowLength, nSignalSmooth, sPriceSource, eval(bSimpleMA));

with the following

study2 = new MACDStudy(nFastLength, nSlowLength, nSignalSmooth, sPriceSource, bSimpleMA);

The above changes will save you having to type true or false when you want to change the MA type from simple to exponential.
Alex