OBV Donchian

[gwika]

Hello All;
Is there a way to put a Donchian channel over an OBV indicator?
I'm just looking to see if the OBV is hitting a NEW high.
Thanks for your time...Greg

[ACM]

Re: OBV Donchian

Greg
You can do that using the Donchian Channel functions to which you pass the obv() function as the source.
In the EFS KnowledgeBase article on the Donchian Channels you will find a specific example for a single line study on study indicator. Just replace the hl2() function shown in that example with obv()
Hope this helps
Alex

Originally posted by gwika
Hello All;
Is there a way to put a Donchian channel over an OBV indicator?
I'm just looking to see if the OBV is hitting a NEW high.
Thanks for your time...Greg

[gwika]

OBV Donchian

Alex;
WOW fast response, Thank you.
I did what you said but the formula comes up empty.
Here is the formula.
What am I doing wrong?
Greg
//{{EFSWizard_Description
//
// This formula was generated by the Alert Wizard
//
//}}EFSWizard_Description


//{{EFSWizard_Declarations
var vOBV = new OBVStudy();
var vDonchian = new DonchianStudy(20, 0);
var vLastAlert = -1;
//}}EFSWizard_Declarations


function preMain() {
/**
* This function is called only once, before any of the bars are loaded.
* Place any study or EFS configuration commands here.
*/
//{{EFSWizard_PreMain
setPriceStudy(false);
setStudyTitle("");
setCursorLabelName("obv", 0);
setDefaultBarStyle(PS_SOLID, 0);
setDefaultBarFgColor(Color.red, 0);
setDefaultBarThickness(1, 0);
setPlotType(PLOTTYPE_LINE, 0);
//}}EFSWizard_PreMain

}

function main() {
/**
* The main() function is called once per bar on all previous bars, once per
* each incoming completed bar, and if you don't have 'setComputeOnClose(true)'
* in your preMain(), it is also called on every tick.
*/

//{{EFSWizard_Expressions
//{{EFSWizard_Expression_1
//}}EFSWizard_Expression_1

//}}EFSWizard_Expressions


//{{EFSWizard_Return
return ;
//}}EFSWizard_Return

}

function postMain() {
/**
* The postMain() function is called only once, when the EFS is no longer used for
* the current symbol (ie, symbol change, chart closing, or application shutdown).
*/
}

//{{EFSWizard_Actions
//{{EFSWizard_Action_1
function onAction1() {
vLastAlert = 1;
}
//}}EFSWizard_Action_1

//}}EFSWizard_Actions

[ACM]

Re: OBV Donchian

Greg
Click on the Donchian Channel link I provided in my previous reply. In that article of the EFS KnowledgeBase you will find a specific (and complete) example of a single line study on study indicator using the Donchian Channels.
Copy it to the Formula Editor (not the Formula Wizard) and follow the instructions I provided earlier then save the efs.
Alex

Originally posted by gwika
Alex;
WOW fast response, Thank you.
I did what you said but the formula comes up empty.
Here is the formula.
What am I doing wrong?
Greg
//{{EFSWizard_Description
//
// This formula was generated by the Alert Wizard
//
//}}EFSWizard_Description


//{{EFSWizard_Declarations
var vOBV = new OBVStudy();
var vDonchian = new DonchianStudy(20, 0);
var vLastAlert = -1;
//}}EFSWizard_Declarations


function preMain() {
/**
* This function is called only once, before any of the bars are loaded.
* Place any study or EFS configuration commands here.
*/
//{{EFSWizard_PreMain
setPriceStudy(false);
setStudyTitle("");
setCursorLabelName("obv", 0);
setDefaultBarStyle(PS_SOLID, 0);
setDefaultBarFgColor(Color.red, 0);
setDefaultBarThickness(1, 0);
setPlotType(PLOTTYPE_LINE, 0);
//}}EFSWizard_PreMain

}

function main() {
/**
* The main() function is called once per bar on all previous bars, once per
* each incoming completed bar, and if you don't have 'setComputeOnClose(true)'
* in your preMain(), it is also called on every tick.
*/

//{{EFSWizard_Expressions
//{{EFSWizard_Expression_1
//}}EFSWizard_Expression_1

//}}EFSWizard_Expressions


//{{EFSWizard_Return
return ;
//}}EFSWizard_Return

}

function postMain() {
/**
* The postMain() function is called only once, when the EFS is no longer used for
* the current symbol (ie, symbol change, chart closing, or application shutdown).
*/
}

//{{EFSWizard_Actions
//{{EFSWizard_Action_1
function onAction1() {
vLastAlert = 1;
}
//}}EFSWizard_Action_1

//}}EFSWizard_Actions

[gwika]

OBV Donchian

Alex;
Got it to work, many thanks....
Now how do I thicken the Donchian Line???
I promise this will be my last question ;o)
Greg

[ACM]

Re: OBV Donchian

Greg
To do that you will need to add to the script a preMain() function in which you set all the study properties such as the title, the names for the labels of the Cursor Window, the color, thickness, style of the plot(s), etc. As an example see the basicDonchian.efs which is in the EFS2 Basic subfolder of Formulas located in your eSignal directory.
For detailed information (complete with examples) on how to format a study see the section 3.3 in the Beginner's Tutorial 3 which is available here. I would also suggest reviewing the other Tutorials available at the same link.
Alex

Originally posted by gwika
Alex;
Got it to work, many thanks....
Now how do I thicken the Donchian Line???
I promise this will be my last question ;o)
Greg