Bollinger Bands with color back ground

[Barros]

Hi,
Please, could someone help me to put a diferent color between the bands like a back ground pane?

[ACM]

Barros
To color the background in between values you need to use the optional yMin and yMax parameters in the setBarBgColor() function (see the link for the description and syntax)
For an example of how to implement these parameters see the efs attached to this post.
Alex

[Barros]

I tryed this way, but there is a problem.
Please, could you help me?


This sample eSignal Formula Script (EFS) may be modified and saved under a new
filename; however, eSignal is no longer responsible for the functionality once modified.
eSignal reserves the right to modify and overwrite this EFS file with each new release.
************************************************** ************************************************** */
var study = new BollingerStudy(20, "Close", 2.0);

function preMain() {
setPriceStudy(true);

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

function main() {
var vUpper = study.getValue(BollingerStudy.UPPER);
var vBasis = study.getValue(BollingerStudy.BASIS);
var vLower = study.getValue(BollingerStudy.LOWER);

return new Array(vUpper, vBasis, vLower);
}

Insert your code following this text block
Use var vUpper = study.getValue(BollingerStudy.UPPER) and
var vBasis = study.getValue(BollingerStudy.BASIS) and
var vLower = study.getValue(BollingerStudy.LOWER) for your code
**************************************************/
setBarBgColor(Color.yellow,1,vEnv.getValue(Bolling erStudy.LOWER),vEnv.getValue(BollingerStudy.UPPER) );

[smeyer55]

Barros,

Your setBarBgColor line needs to be before the return new Array line. Something like the following.

function main() {
var vUpper = study.getValue(BollingerStudy.UPPER);
var vBasis = study.getValue(BollingerStudy.BASIS);
var vLower = study.getValue(BollingerStudy.LOWER);

setBarBgColor(Color.yellow,1,vLower,vUpper));
return new Array(vUpper, vBasis, vLower);
}

[Barros]

A new problem

Thanks for the help, but now I have a new problem:

After I put ir suggestion on, apeared a error:

.......^
Bollinger|BuiltinBB Colors. efs. line 1:
SintaxError: missing ; before statement:
This sample eSignal Formula Script (EFS) may
be modified and saved under a new


/************************************************** *******
Alexis C. Montenegro © October 2003
Use and/or modify this code freely. If you redistribute it
please include this and/or any other comment blocks and a
description of any changes you make.
************************************************** ********/

var vBB = null;

function preMain() {
setPriceStudy(true);
setStudyTitle("BollingerBand");
setCursorLabelName("BB-Upr", 0);
setCursorLabelName("BB-Bas", 1);
setCursorLabelName("BB-Lwr", 2);
setDefaultBarFgColor(Color.blue, 0);
setDefaultBarFgColor(Color.red, 1);
setDefaultBarFgColor(Color.blue, 2);
setDefaultBarThickness(1,0);
setDefaultBarThickness(1,1);
setDefaultBarThickness(1,2);

var fp1 = new FunctionParameter("Length", FunctionParameter.NUMBER);
fp1.setLowerLimit(1);
fp1.setDefault(20); //Edit this value to set a new default

var fp2 = new FunctionParameter("StdDev", FunctionParameter.NUMBER);
fp2.setLowerLimit(0);
fp2.setDefault(2); //Edit this value to set a new default

var fp3 = new FunctionParameter("Source", FunctionParameter.STRING);
fp3.setName("Source");
fp3.addOption("Close");
fp3.addOption("High");
fp3.addOption("Low");
fp3.addOption("Open");
fp3.addOption("HL/2");
fp3.addOption("HLC/3");
fp3.addOption("OHLC/4");
fp3.setDefault("Close"); //Edit this value to set a new default

}

function main() {
var vUpper = study.getValue(BollingerStudy.UPPER);
var vBasis = study.getValue(BollingerStudy.BASIS);
var vLower = study.getValue(BollingerStudy.LOWER);

setBarBgColor(Color.yellow,1,vLower,vUpper));
return new Array(vUpper, vBasis, vLower);
}

/*************************************************
Insert your code following this text block
Use vBB.getValue(BollingerStudy.UPPER) and
vBB.getValue(BollingerStudy.BASIS) and
vBB.getValue(BollingerStudy.LOWER) for your code
**************************************************/


return new Array (vBB.getValue(BollingerStudy.UPPER),vBB.getValue(B ollingerStudy.BASIS),vBB.getValue(BollingerStudy.L OWER));
}

[smeyer55]

I'm guessing you left the "This sample eSignal...." lines in as you show them below.

Those are comments and you need to put // in front of them so they show as grey lines in the efs editor.

efs is thinking they are code lines and trying to figure out what they mean

You could also just delete the 2 lines.

[Barros]

Hard to do

I tryed lots of solutions, but no results.
I need more help, please!

[smeyer55]

can you put the efs file here as an attachment so I can download it and see what it does on my machine?

[smeyer55]

Try the attached file. It works for me.

[Barros]

Good work

Hi, Smeyer55,
Good work. I will study it to learn how to do it.
Thank you very much.