Drawing upper limit and lower limit when in a range

AFL Programming
1

Hi Guys ,

image

For the above chart i would like to get draw only when bars are in a range . Not sure how to do it . Appreciate if any one can point me or help me
image

2

You should first define your criteria for that range .. then you can ask for help to express this in AFL

1 Like
3

True .. But no idea how to start or close . Though its pretty basic someone might have did it . Sorry about that

Range= H-L ;
RangeTop =  O < Ref( Range,-1) and O <  Ref( Range,-2) and O< Ref( Range,-3)  and  C < Ref( Range,-1) and C <  Ref( Range,-2) and  C< Ref( Range,-3 );

But above approach is pretty lame ( i can feel) because its only confined to 3 bars .. Some times it may be 5 to 7 bars .. how i define that .Appreciate any input and help

4

As you did not specify any objective criteria for that so i put an assumption to define these congestion zones , which is the current bar 's high & low is neither broke up nor down for the next 5 days ( you can later change that from your parameter window )

If that condition is met two horizontal line will be drawn from the high and low of that bar extending rightward for the next 5 bars .. you can test it and put your feedback & notice if you had any ....

Plot(C,"Close",colorDefault,styleBar);
//SetBarsRequired(sbrAll,sbrAll);

Period = Param("Prefered Period For Congestion Zone",5,0,100);



k = 0;
m = 0;
counter = 0;

for ( i = 0 ; i <= BarCount-period-2 ; i++)
{
	for ( z = i ; z <= i+period ; z++)
	{
		if ( High[i] > Close[z+1] AND Low[i] < Close[z+1] AND m < i) {counter = counter +1;} else{counter = 0;}
		if ( counter == period ) 
		{
			k[i] = 1; 	counter = 0;	m = z;
			
			GfxSetZOrder(-1);
			GfxSetCoordsMode(1);
			GfxSelectPen(colorGold);
			GfxMoveTo(i,High[i]);
			GfxLineTo(z,High[i]);
			GfxMoveTo(i,Low[i]);
			GfxLineTo(z,Low[i]);
		}
		//printf(StrFormat("i = %g\tCounter = %g\n",i,Counter));
	}
}
5 Likes
5

Ive been thinking about it too. I dont know all the details of how im going to implement it, but the path is something like this:

1 - find a swingLow. Its a bool type. Something like SwingL = L < Ref(L,-1) and L < Ref(L,1);
It will create an array that returns 0 or 1.

2 - Mark that bar where SwingL = 1. How to do it? The way my limited knowledge thought was using the indexbar function.

bi = barindex(); //each bar will have a different bi.
LastSwingLIndex = ValueWhen (SwingL, bi, 1); //this will return the bi of the bar where SwingL was true.

3 - Now we need to see if there was any lower bar than our marked SwingL. To do that, i thought of this:

BarsSwingL = bi - LastSwingLIndex //How many bars ago was the LastSwing?
NewSL = L < LLV(L, BarsSwingL); //the actual low is lower than the LastSwing?

Now comes the parto to assign a new value to LastSwingL and so on... still trying to figure it out.

And then you do the same for the swing high.

6

@amsai also worth looking at

http://amibroker.com/members/traders/08-2018.html

The original,article looked at price consolidation, ATR consolidation and ADX consolidation. But we have only been provided with one of the examples.

1 Like
7

Can anybody help in adding a Filter and range percentage between upper limit and lower limit.

8

@Venkatam, Welcome to the Forum.

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10

@Venkatam,

Multiple User Accounts is against forum rules!

You will need to get this rectified before being able to do any further posting.