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Roy's newsletter is the best MS tool there is for learning to code
explorations, systems tests, etc. In addition, it's got a lot of great
indicators already coded and a trading series that will open your
thinking up. And it's dirt cheap!
Equis should give everyone who buys MS the first twelve issues as part
of the price. You think they'll do that! No, you might learn to make
money with MS.
www.metastocktips.co.nz
--- In equismetastock@xxxxxxxxxxxxxxx, ANDREW TOPLIFF
<artopliffmd@xxxx> wrote:
> Is there any text that anyone would suggest for really getting a
good handle on writing explorations with metastock?
>
> Many thanks
>
> Roy Larsen <rlarsen@xxxx> wrote:
> Hi Andrew
>
> > I'm getting lots of divide by zero errors - any workarounds?
>
> At a quick glance the only reason I can see for these errors is one
of the "B" variables equal to
> zero when the start date is set before the first bar of the chart. I
assume there's a problem in the
> date area somewhere. Changing the definition of the two affected "B"
variables might help. I've
> marked the two with {**} in the formula below.
>
> See if you still have a problem.
>
> Kind regards
>
> Roy
>
> {Volume By Price 10-C}
> {© 2003 Roy Larsen}
> {rlarsen@xxxx}
> D:=Input("Start Day / Month /",101,3112,1507);
> Y:=Input( "Year",1990,2003,1995);
> X1:=Input("End Day / Month /",101,3112,103);
> X3:=Input("Year",1990,2010,2003);
> M:=Int(.01+Frac(D/100)*100); D:=Int(D/100);
> X2:=Int(.001+Frac(X1/100)*100); X1:=Int(X1/100);
> D:=(DayOfMonth()>=D AND Month()=M AND
> Year()=Y) OR Year()>Y OR (Year()=Y AND Month()>M);
> D:=BarsSince(D AND Alert(D=0,2));
> D:=LastValue(If(D=0,LastValue(Cum(1)-1),D));
> N:=Input("Scaling % in Box, 0=None",0,100,50);
> M:=(DayOfMonth()>=X1 AND Month()=X2 AND
> Year()=X3) OR Year()>X3 OR (Year()=X3 AND Month()>X2);
> M:=BarsSince(M AND Alert(M=0,2));
> M:=LastValue(If(M=0,LastValue(Cum(1)-1),M));
> F:=LastValue(Cum(1));
> A:=(F-D)<Cum(1) AND (F-M)>=Cum(1);
> {**} B:=LastValue(Max(1,Cum(If(A,V,0))));
> Q:=LastValue(HighestSince(1,Ref(A=0,-M),Ref(C,-M)));
> R:=LastValue(LowestSince(1,Ref(A=0,-M),Ref(C,-M)));
> I:=(Q-R)/10;
> X1:=LastValue(Cum(If(C<(R+I) AND
> A,V,0))/B);
> X2:=LastValue(Cum(If(C>=(R+I) AND
> C<(R+I*2) AND A,V,0))/B);
> X3:=LastValue(Cum(If(C>=(R+I*2) AND
> C<(R+I*3) AND A,V,0))/B);
> X4:=LastValue(Cum(If(C>=(R+I*3) AND
> C<(R+I*4) AND A,V,0))/B);
> X5:=LastValue(Cum(If(C>=(R+I*4) AND
> C<(R+I*5) AND A,V,0))/B);
> X6:=LastValue(Cum(If(C>=(R+I*5) AND
> C<(R+I*6) AND A,V,0))/B);
> X7:=LastValue(Cum(If(C>=(R+I*6) AND
> C<(R+I*7) AND A,V,0))/B);
> X8:=LastValue(Cum(If(C>=(R+I*7) AND
> C<(R+I*8) AND A,V,0))/B);
> X9:=LastValue(Cum(If(C>=(R+I*8) AND
> C<(R+I*9) AND A,V,0))/B);
> X0:=LastValue(Cum(If(C>=(R+I*9) AND
> A,V,0))/B);
> B:=Max(Max(X1,X2),Max(X3,X4));
> B:=Max(Max(B,X5),Max(X6,X7));
> B:=Max(Max(B,X8),Max(X9,X0));
> {**} B:=Max(0.001,If(N=0,1,B*100)/If(N=0,1,N));
> Ref(Ref(ValueWhen(1,(F-D)<=Cum(1),Q),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X0*(D-M)/B)=
> Cum(1)+M,R+I*9.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X9*(D-M)/B)=
> Cum(1)+M,R+I*8.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X8*(D-M)/B)=
> Cum(1)+M,R+I*7.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X7*(D-M)/B)=
> Cum(1)+M,R+I*6.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X6*(D-M)/B)=
> Cum(1)+M,R+I*5.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X5*(D-M)/B)=
> Cum(1)+M,R+I*4.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X4*(D-M)/B)=
> Cum(1)+M,R+I*3.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X3*(D-M)/B)=
> Cum(1)+M,R+I*2.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X2*(D-M)/B)=
> Cum(1)+M,R+I*1.5),-M),M);
> Ref(Ref(ValueWhen(1,F-Int(X1*(D-M)/B)=
> Cum(1)+M,R+I*0.5),-M),M);
> Ref(Ref(ValueWhen(1,(F-D)<=Cum(1) AND
> (F-D)>Cum(1)-2,If(A,R,Q)),-M),M);
>
>
>
> ---------------------------------
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