AFL to plot line on next few bars

T

tradewell2

Member
#1
#1
Hi,
Is it possible plot lines only next few bars from selected value and it should not be extended after that. Please find sample image below. Thanks for the help



Thanks
 
C

colion

Active Member
#2
#2
Here is one way:

bar = SelectedValue( barindex() ) - 1;
ext = Param( "Extend", 10, 3, 50, 1 );
piv = ParamToggle( "Pivot", "H | L" );
Plot( C, "", colorPaleGreen, styleBar );
Plot( IIf( BarIndex() > bar AND BarIndex() < bar + ext, IIf( piv == 0, SelectedValue( H ), SelectedValue( L ) ), Null ), "", colorRed );
 
T

tradewell2

Member
#3
#3
Thanks colion for the reply. Could you please help me to draw from specific bar as below?

Code: 
PH = Ref(H,-5) < Ref(H,-3) AND Ref(H,-3) < Ref(H,-3) AND Ref(H,-2) < Ref(H,-3) AND Ref(H,-1) < Ref(H,-3)
When above condition is true, it has to draw from Ref(H,-3) to 10 bars. Thanks for your help
 
C

colion

Active Member
#4
#4
There is not much change. Be sure that you understand the code and then it should get you going. Then you can modify it as needed to suit your needs.

ph = Ref(H,-5) < Ref(H,-3) AND Ref(H,-4) < Ref(H,-3) AND Ref(H,-2) < Ref(H,-3) AND Ref(H,-1) < Ref(H,-3);
bar = SelectedValue( BarIndex() ) - 1;
ext = Param( "Extend", 10, 3, 50, 1 );
Plot( C, "", IIf( ph, colorWhite, colorPaleGreen ), styleBar );
Plot( IIf( BarIndex() > bar - 3 AND BarIndex() < bar + ext, SelectedValue( Ref( H, -3 ) ), Null ), "", colorRed );
 
Last edited:
T

tradewell2

Member
#5
#5
colion said:
There is not much change. Be sure that you understand the code and then it should get you going. Then you can modify it as needed to suit your needs.

ph = Ref(H,-5) < Ref(H,-3) AND Ref(H,-4) < Ref(H,-3) AND Ref(H,-2) < Ref(H,-3) AND Ref(H,-1) < Ref(H,-3);
bar = SelectedValue( BarIndex() ) - 1;
ext = Param( "Extend", 10, 3, 50, 1 );
Plot( C, "", IIf( ph, colorWhite, colorPaleGreen ), styleBar );
Plot( IIf( BarIndex() > bar - 3 AND BarIndex() < bar + ext, SelectedValue( Ref( H, -3 ) ), Null ), "", colorRed );
Click to expand...
it is not working colion. Because we need to identify the index of the when the condition is true and draw from high of that bar... I tried all the ways... I think am missing something

Thanks
 
C

colion

Active Member
#6
#6
tradewell2 said:
it is not working colion. Because we need to identify the index of the when the condition is true and draw from high of that bar... I tried all the ways... I think am missing something

Thanks
Click to expand...
Just click on the white bar (this finds the index) and the line that you want is drawn. If that is not what you want then I don't know what you want - you have to be more specific. For example, exactly which ph do you want to consider? The last?

 
Last edited:
T

tradewell2

Member
#7
#7
Thanks colion. The thing is that I don't want select any bar and draw from there. It has to identify the every pivot automatically and draw from that pivot to next 10 bar or till barcount. Please look at the code which I am using currently for PH and output.
Code: 
PH = Ref(H,-4) < Ref(H,-2) AND Ref(H,-3) <= Ref(H,-2) AND Ref(H,-1) <= Ref(H,-2) AND Ref(H,0) < Ref(H,-2);
VW=ValueWhen(PH,Ref(H,-2),1);
fil = VW != Ref(VW,-1); 
Plot(IIf(fil,Null,VW),"PH",colorBrown,styleDots|styleStaircase|styleSwingDots|styleThick,Null,Null,-3);
 
C

colion

Active Member
#8
#8
Fine, then keep it simple and use the built-in peak functions and adjustable parameters for peak change and line extension follows:

ext = Param( "Extend", 10, 3, 50, 1 );
delta = Param( "Change", .1, .1, 10, .1 );
Plot( C, "", colorblack, styleBar | stylethick );
Plot( IIf( PeakBars( H, delta ) > 0 AND PeakBars( H, delta ) < ext, peak( H, delta ), Null ), "", colorRed, styleThick );

If that is not what you want then post what you think the code should be even if it does not work.

 
T

tradewell2

Member
#9
#9
thank you. I don't think it will work out. Anyway I will try. Did you my previous post fully? Need to draw line from every PH. Since I am not aware peakBars, I will check again. thanks for the reply
 
C

colion

Active Member
#10
#10
tradewell2 said:
Thanks colion. The thing is that I don't want select any bar and draw from there. It has to identify the every pivot automatically and draw from that pivot to next 10 bar or till barcount. Please look at the code which I am using currently for PH and output.
Code: 
PH = Ref(H,-4) < Ref(H,-2) AND Ref(H,-3) <= Ref(H,-2) AND Ref(H,-1) <= Ref(H,-2) AND Ref(H,0) < Ref(H,-2);
VW=ValueWhen(PH,Ref(H,-2),1);
fil = VW != Ref(VW,-1); 
Plot(IIf(fil,Null,VW),"PH",colorBrown,styleDots|styleStaircase|styleSwingDots|styleThick,Null,Null,-3);
Your definition of a peak is wrong. On the following chart the red bars are PH which are obviously not peaks.

Click to expand...
 
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