Multiple Time Frames on 1 Chart

[buzzhorton]

Alexis:

I tested this and you're correct

tStochK = stochK(14,1,3, sym(iSymbol), inv(iInterval)  ) ;
tStochD = stochD(14,1,3, sym(iSymbol), inv(iInterval)  ) ; 

Does NOT return the correct values!

The editor does not return a syntax error!

So there must be a bug!!

If this syntax is not proper then either the syntax checker should catch it or it should cause an error upon execution.

I guess this is just another "GOTCHA" then I have discovered.

I appreciate you informing me of this.

Thanks!!

[eSignal_JasonK]

Hello Avery,

Originally posted by buzzhorton
Alexis:

I tested this and you're correct

tStochK = stochK(14,1,3, sym(iSymbol), inv(iInterval)  ) ;
tStochD = stochD(14,1,3, sym(iSymbol), inv(iInterval)  ) ; 

Does NOT return the correct values!

The editor does not return a syntax error!

So there must be a bug!!

If this syntax is not proper then either the syntax checker should catch it or it should cause an error upon execution.

I guess this is just another "GOTCHA" then I have discovered.

I appreciate you informing me of this.

Thanks!!

Actually, it's not a bug. The stochK() built-in accepts up to 5 parameters. The 5th one is the bar index to retrieve a value for. Passing a function to get a bar index would be acceptable syntax, which is why the syntax checker does not report a syntax error message when passing in inv(). We would need to modify all built-in study functions and add some additional error checking logic to produce a custom runtime error message. I will send a suggestion to our developers, but you may do so also if you like ([email protected]).

[buzzhorton]

JasonK:

That's for the reply.

I can see the reason why you say it is not a bug.

But, once again, this is where coding is NOT intuitive.

The parse rountine should look for and process inv(), or sym() or both!

sym( symbol, interval ) is handy, however, if you are writing a statement builder ( like I have been working on in my TRO studies) then you need a way to build statements for one, the other or both, if you want to make it user friendly.

I have figured out the internal functions via eval. Thanks again.

I still need some help with efsInternal and efsExternal. And of course SERIES.

THANKING YOU IN ADVANCE.

[alexmihh]

It Works

I made these minor changes to code: use AB #F, used 6,6,2 and StochD only, and then loaded this on a 1-min chart. I had StochD 6,6,2 running on a 10 min chart and then compared the 2 charts. I did get the same results, even going back in time

function preMain() {

    setPriceStudy(false);
    setStudyTitle("TRO_TEST"); 

    setDefaultBarFgColor(Color.red,0);
    setDefaultBarFgColor(Color.blue,1);

    setDefaultBarThickness(2,0); 
    setDefaultBarThickness(2,1);    
    
    var iSymbol = new FunctionParameter("iSymbol", FunctionParameter.STRING);
    iSymbol.setDefault( "AB #F" ); 


    var iInterval = new FunctionParameter("iInterval", FunctionParameter.NUMBER);
    iInterval.setDefault( 10 ); 

    askForInput();
}
  

function main(iSymbol, iInterval ){

//    return new Array ( stochK(6,6,2,sym(iSymbol+","+iInterval)), stochD(6,6,2,sym(iSymbol+","+iInterval)) );

    return ( stochD(6,6,2,sym(iSymbol+","+iInterval)) );

} 

This is exactly what I was after. I can now use the 10 min value in my 1 min EFS to further refine signal generation in 1 min charts.