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Roy,
I've been reading a file in pdf format, not easy for begginers. You are the
author "Using latches in MS"?
I have to redefine the binary latch to outcomes of -1 and 1, instead of 0
and 1 as you pointed out before.
But I tried in a different way, without changing the binary latch but it
does no work:
{draws resistances and supports}
LookBack := 34;
Resistance :=ValueWhen(1,Cross(Mov(C, LookBack,S),C),HHV(H, LookBack));
Support :=ValueWhen(1,Cross(C,Mov(C, LookBack,S)),LLV(L, LookBack));
R1:=Resistance;
S1:=Support;
{binary latch, gives 1 if L>Resistance, and resets if H<Resistance to 0}
sigtl:=If(L>R1,1,0);
rsttl:=If(H<R1,1,0);
itl:=Cum(sigtl+rsttl>-1)=1;
rmbtl:=BarsSince(sigtl OR itl)<BarsSince(rsttl OR itl);
{looks for HHV since L>Resistance to place a trailing stop}
all:=If(rmbtl=0,-1,l);
stlongl:= If(all=-1,0, If(HHV(H,LastValue(PREV+
BarsSince(all=-1)-PREV))-ATR(6)*0.5<C,1,0));
stlongl;
----- Original Message -----
From: "Roy Larsen" <rlarsen@xxxxxxxxxxxxxx>
To: <equismetastock@xxxxxxxxxxxxxxx>
Sent: Monday, March 10, 2003 1:14 AM
Subject: Re: [EquisMetaStock Group] help with barsSince
> Juan
>
> One problem that is evident with your 'stlong' variable is that the
> BarsSince() function is often returning a "zero" value. This is not
> acceptable for the HHV(H,periods) function, as I think I pointed out in my
> earlier post. So the problem at this point is not so much that the code
> won't work as that it won't work with the parameters you are supplying it.
> Try adding some number to BarsSince(rmbtl=0) so that you have an
expression
> like (BarsSince(rmbtl=0)+5) instead. This should at least get an output
> instead of N/A - It does for me. Because I don't yet understand the
thinking
> behind the formula I can't offer further suggestions, but using a variable
> as a constant does not appear to be the only issue.
>
> You can dispense with the If function in "stlong" (to simplify the code a
> little) because any output signal will be the same whether or not you use
> If(). But the main task is to rethink the BarsSince() function usage so
the
> result is never zero and always a whole number, as required by HHV()
>
> Roy
>
> ----- Original Message -----
> From: "emarco" <emarco@xxxxxxxxxxxxxxx>
> To: <equismetastock@xxxxxxxxxxxxxxx>
> Sent: Monday, March 10, 2003 4:29 PM
> Subject: Re: [EquisMetaStock Group] help with barsSince
>
>
> > Thanks Roy.
> > Unfortunatly it does not work.
> > Here's the full code. Thanks again,
> > Juan
> >
> > LookBack := 34;
> >
> > Resistance :=ValueWhen(1,Cross(Mov(C, LookBack,S),C),HHV(H, LookBack));
> >
> > Support :=ValueWhen(1,Cross(C,Mov(C, LookBack,S)),LLV(L, LookBack));
> >
> > R1:=Resistance;
> >
> > S1:=Support;
> >
> >
> >
> > sigtl:=If(L>R1,1,0);
> >
> > sigts:=If(H<S1,1,0);
> >
> > rsttl:=If(H<R1,1,0);
> >
> > rstts:=If(L>S1,1,0);
> >
> > itl:=Cum(sigtl+rsttl>-1)=1;
> >
> > its:=Cum(sigts+rstts>-1)=1;
> >
> > rmbtl:=BarsSince(sigtl OR itl)<BarsSince(rsttl OR itl);
> >
> > rmbts:=BarsSince(sigts OR its)<BarsSince(rstts OR its);
> >
> > stlong:=If(HHV(H,LastValue(PREV+
> > BarsSince(rmbtl=0)-PREV))-ATR(6)*2.5<C,1,0);
> >
> > stlong;
> >
> >
> >
> >
> > ----- Original Message -----
> > From: "Roy Larsen" <rlarsen@xxxxxxxxxxxxxx>
> > To: <equismetastock@xxxxxxxxxxxxxxx>
> > Sent: Sunday, March 09, 2003 6:38 PM
> > Subject: Re: [EquisMetaStock Group] help with barsSince
> >
> >
> > > Juan
> > >
> > > Thanks to Corey Saxe there is a way that MS will accept a variable as
> > > constant. Try redefining your variable using
> > > LastValue(PREV+"Variable Data"-PREV)
> > >
> > > This method does not work on every occasion but there are a couple of
> > things
> > > you can do to help.
> > > 1. Make sure your variable is greater than or equal to one.
> > > 2. Make sure your variable is a whole number.
> > >
> > > LastValue() can be used in a number of situations to make a result
> > suitable
> > > for using as a constant, but only where the last value of the variable
> is
> > > the same as on every other bar. The above example of adding then
> > subtracting
> > > PREV from the current value appears to return the "actual" value
rather
> > than
> > > the "last" value, and therefore is accepted as a "constant" by many MS
> > > functions.
> > >
> > > I have some doubts about the code you have given as an example and
doubt
> > it
> > > could work in its present form even without MetaStock's perceived
> > > inadequacies. The code appears to be looking for results from two If()
> > > statements yet I can only see one If(). It also seems to me that the
> > > calculated "constant" for the HHV periods has no check to ensure that
it
> > is
> > > a whole number.
> > >
> > > When looking for assistance with code it is also helpful if associated
> > code
> > > can be supplied. You may know how "rmbtl" is calculated but those
> capable
> > of
> > > offering help won't. Providing actual code or at least a working
> > substitute
> > > will increase your chances of real help that goes beyond "buy some
more
> > > software".
> > >
> > > Good luck with your attempts to solve your problem whichever method
you
> > > choose to use.
> > >
> > > Roy
> > >
> > > ----- Original Message -----
> > > From: "emarco" <emarco@xxxxxxxxxxxxxxx>
> > > To: <equismetastock@xxxxxxxxxxxxxxx>
> > > Sent: Saturday, March 08, 2003 11:37 AM
> > > Subject: [EquisMetaStock Group] help with barsSince
> > >
> > >
> > > This is a trailing stop. The problem is that MS does not accept
variable
> > > data in HHV.
> > >
> > >
> > >
> > > stlong:=if(HHV(H,BarsSince(rmbtl=0))-ATR(6)*2.5>C,1,0),1,0)
> > >
> > >
> > > As you can see, MS does not accept barssince as a period data.
> > > How can I solve this problem?
> > > Thanks
> > >
> > > Juan
> > >
> > >
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
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> > >
> > >
> > >
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> > >
> >
> >
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>
>
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