Help with indicator

[horus]

Hi,

I was wondering if someone could help me. I do not know how to write esignal code but can describe the logic steps for the indicator.

I am using the standard bollinger bands with length 20 and sd 2.

The keltner formula i am using is this one...... with input length being 20 and ATR being 1.5.

/************************************************** ***************
Provided By : eSignal. (c) Copyright 2003
************************************************** ***************/

function preMain() {
setPriceStudy(true);

/* Set the title that will appear in the study pane */
setStudyTitle("Keltner");

/* Set the label that will appear in the cursor window */
setCursorLabelName("K-Upper", 0);
setCursorLabelName("K-Basis", 1);
setCursorLabelName("K-Lower", 2);

setDefaultBarFgColor(Color.blue, 0); // upper
setDefaultBarFgColor(Color.red, 1); // basis
setDefaultBarFgColor(Color.blue, 2); // lower
}


function main(nInputLength, nRangeFactor) {
if(nInputLength == null)
nInputLength = 20;
if(nInputLength <= 0)
nInputLength = 20;

if(nRangeFactor == null)
nRangeFactor = 2.5;
if(nRangeFactor <= 0)
nRangeFactor = 2.5;

var dHigh = high(0, -nInputLength);
var dLow = low(0, -nInputLength);
var dKeltnerBasis= call("/Library/KeltnerEMA.efs", nInputLength);

if(dHigh == null || dLow == null || dKeltnerBasis == null)
return;

var dHminL = 0;
var i;

for(i = 0; i < nInputLength; i++) {
dHminL += dHigh[i] - dLow[i];
}

dHminL /= nInputLength;

return new Array(dKeltnerBasis + (nRangeFactor * dHminL), dKeltnerBasis, dKeltnerBasis - (nRangeFactor * dHminL));
}






I want to create a green dot/line if:

1) Bollinger upper band > keltner upper band AND bollinger lower band < keltner lower band.

Create a red dot/line if:

1) Bollinger upper band less than or equal to keltner upper band

2) Bollinger lower band greater than or equal to keltner lower band

3) Bollinger upper band > keltner upper band AND bollinger lower band greater than or equal to keltner lower band

4) Bollinger lower band < keltner lower band AND bollinger upper band less than or equal to keltner lower band

Any help would be greatly appreciated.

Kind regards,

David Dunne

[horus]

Just realised that copying and pasting in the keltner formula may have missed some important parts of how it is written so here is the post that it is located on.

http://forum.esignalcentral.com/showthread.php?s=&threadid=11327&highlight=keltner

David