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Two Independent Crossovers / Timing Check


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Two Independent Crossovers / Timing Check

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  #1 (permalink)
Florida
 
Experience: Intermediate
Platform: NT7
Trading: CL, NQ, NG
 
Posts: 469 since Jun 2009
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Hello,
I'm attempting to identify two independent crossover events and verify if they both occur within 5 bars of each other. I've started with the following:
 
Code
in Variables:
private bool crossoverEventLongA = false;
private bool crossoverEventLongB = false;
private bool crossoverLongBoth = false;
private bool crossoverEventShortA = false;
private bool crossoverEventShortB = false;
private bool crossoverShortBoth = false;
private int countDown = 0; 
in OnBarUpdate():
if (CrossAbove(PositiveHolder,EMAPositiveHolder,1)) 
{ 
 crossoverEventLongA = true; 
}
if (CrossAbove(NegativeHolder,EMANegativeHolder,1)) {crossoverEventLongB = true; }
if (crossoverEventLongA && crossoverEventLongB) {crossoverLongBoth = true;}
else crossoverLongBoth = false; 
what I'm not sure how to do is use countdown to prove the the EventB occurred within 6 bars of EventA.
I'm thinking I can use a countdown function somewhere to give a true/false result if the two did occur within the specified time period
 
Code
 for (countdown = 6; countdown>0; countdown--)
Please help with the missing code / syntax to help me get a qualified result with the timing parameter. I've attached a screenshot to show that these cross sometimes on the same bar and sometimes not.
Thanks in advance!
Kirk (zeller4)

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  #2 (permalink)
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Big Mike's Avatar
 
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Perhaps when EventA occurs, record that bar number. When EventB occurs, record that bar number. Then do Math.Abs() and see if within 6 bars.

 
Code
                            
#variables
int eventa_bar 0;
int eventb_bar 0;

#onbarupdate
if (eventA)
  
eventa_bar CurrentBar;

if (
eventB)
  
eventb_bar CurrentBar;

int barsapart Math.Abs(eventa_bar eventb_bar);

if (
barsapart 6)
  
doSomething() 
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  #3 (permalink)
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Hi Mike

Why is the "Maths.Abs" needed?

Thanks

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  #4 (permalink)
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diverdan View Post
Hi Mike

Why is the "Maths.Abs" needed?

Thanks

Because it's better/shorter/smarter than writing:

 
Code
                            
int barsapart;
if (
eventa_bar eventb_bar) >= 0
  barsapart
=eventa_bar eventb_bar;
else
  
barsapart=eventb_bar eventa_bar;

if (
barsapart 6)
  
doSomething(); 
Remember that we don't know if event A occurs before event B or not.

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