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Jay
OK just substitute your formula for Val...
Val = (EMA(C,30))/30; // or whatever you like.
If you are trying to set a threshold based on
Threshold = Close today - Val;
and then looking back in time to when a Low of any preceding bar crossed
that threshold,
you will need Cross function, but ALSO if I understand you correctly you
will likely also need to look into Looping.
Looping still leaves me stumped but have a look at the files section for
the articles
Looping in Amibroker AFL.pdf and
AFL Looping.pdf.
Then just use Valuewhen to find the XM.
Regards
ChrisB
jay_podda wrote:
>
> Chris,
>
> Thanks for replying so fast.
>
> In my case, Val is not constant, its array just like C. Also, L might
> not be ref-1, it can be more than 1 bars ago. And I want to know value
> of XM corrosponding to bar on which L is less than current bar's C-
> Val.
>
> Thanks again,
> --- In amibroker@xxxxxxxxx ps.com
> <mailto:amibroker%40yahoogroups.com>, ChrisB <kris45mar@x ..> wrote:
> >
> > Hi Jay
> >
> > See if this is what you are looking for:
> >
> > Val = Param("Val", 1.5 , 1, 3, 0.1);
> >
> > XM = High;//for argument's sake.
> >
> > CminusVal = Close - Val;
> > Cond1 = Ref(L,-1) < (C-Val);
> > myXM= ValueWhen ( Ref(L,-1) < (C -Val),XM);
> >
> > // run the Exploration to check you values
> > Filter = 1;
> >
> > AddColumn(Val, "Val", 1.2);
> > AddColumn( XM,"XM", 1.2);
> > AddColumn (C, "close",1.2) ;
> > AddColumn(Ref( L,-1),"ref L",1.2);
> > AddColumn( CminusVal,"ClessVal ",1.2);
> > AddColumn( Cond1, "Cond1", 1.2);
> > AddColumn ( myXM, "my XM", 1.2);
> >
> > // Plot these to visually check
> > Plot( myXm,"myXM", colorBlue,1) ;
> > Plot( Cond1, "Cond1",colorRed, styleHistogram |styleOwnScale) ;
> >
> > Regards
> >
> > ChrisB
> >
> > jay_podda wrote:
> > >
> > > I want to find value of array XM when L of very first previous bar
> is
> > > VAL amount less then current bar C.
> > >
> > > The problem with me is when I use valuewhen, in expression if I
> use
> > > any array for comparision, I can't compare with current bar. That
> is,
> > > if current bar C is 49.50 and VAL is 1.50, I want to get value of
> XM
> > > array when that previous bar's L is less than 48.
> > >
>
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