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[amibroker] Re: referencing manually entered retracements



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Thanks to graham I have the following code to help reference what I 
want 

At this stage I have put the retracement lines on a Custom indicator 
which is the second in the list of custom indicators of my custom 
list. I'm assuming that according to the naming protocol , this 
should be on chart referenced 0001

LineR1 = Study("R1",0001);
R1a = ValueWhen( IsTrue(LineR1) AND IsNull(Ref(LineR1,-1)), LineR1 );
R1b = ValueWhen(IsNull(LineR1) AND IsTrue(Ref(LineR1,-1)), LineR1 );
R1delta = (R1a-R1b)/R1a;
AddColumn(R1a,"R1Start",1.2);
AddColumn(R1b,"R1finish",1.2);
AddColumn(R1delta,"R1%",1.2);

The above logic makes sense but at the moment when I run this in 
explore mode I don't get any results showing in the columns

Assuming I"ve labled the retracements correctly , and i'm serching 
the correct list of shares in the correct time frame are there any 
other obvious errors ?


See change 


--- In amibroker@xxxxxxxxxxxxxxx, "see_change007" <cvt@xxxx> wrote:
> Hi
> 
> I'm working on a long term trading system and I'm currently 
looking 
> at ways to exclude shares that have shown a tendancy to drop 
> significant amounts.
> 
> I want to define retracments manually , label them eg R1 , and 
then 
> reference features of the retracement using the study feature
> 
> The features I want to reference are the percentage decrease and 
the 
> time before the buy signal that the retracement occured
> 
> I've got a grasp of the basics of amibroker , but this is outside 
my 
> area of "expertise"
> 
> Any suggestions how I might do this ? 
> 
> See Change



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