[EquisMetaStock Group] Re: Valuewhen()

["Jose" <josesilva22@xxxxxxxxx>]

ValueWhen(1,XX,YY) will plot the YY value of the *last* time condition 
XX occurred.

ValueWhen(1+1,XX,YY) is the same as ValueWhen(2,XX,YY), and it will 
plot the YY value of the *second last* time condition XX occurred.


jose '-)


--- In equismetastock@xxxxxxxxxxxxxxx, mwtang <mwtang@xxxx> wrote:
> Thanks Jose , I had read through Roy's mail and Andrew's mail.
> I have some confuse in one of the code :
> 
> BarDiff1:=ValueWhen(1,SignalIn OR Init,
>    ValueWhen(1+1,1,BarsSince(SignalIn OR Init))+1);BarDiff1;
>
> What is the difference between ValueWhen(1,XX,YY) and
> ValueWhen(1+1,XX,YY).Could you please explain about this.
> Thanks you very much.
> 
> Mun Wai.
>
> 
> ----- Original Message -----
> From: "Jose" <josesilva22@xxxx>
> To: <equismetastock@xxxxxxxxxxxxxxx>
> Sent: Sunday, January 23, 2005 3:11 AM
> Subject: [EquisMetaStock Group] Re: Valuewhen()
>
>
>
>
> The short answer is, yes, you can reference any prior condition
> occurrence with the very handy MS ValueWhen() function.
>
> And as Roy has pointed out in a back issue of the MSTT newsletter,
> you can also nest ValueWhen() functions inside each other.
>
> Anyway, try the code below - it doesn't use any forward-referencing
> to determine peaks/troughs.
>
> ---8<--------------------------
>
> { http://www.metastocktools.com }
>
> { User inputs }
> back:=Input("Reference last x Stoch Peak/Trough value",1,100,1);
> pds1:=Input("%k periods",2,260,5);
> pds2:=Input("%k slowing",1,260,3);
>
> { Stochastic }
> St:=Stoch(pds1,pds2);
>
> { Stoch peaks }
> pk:=Ref(St,-1)>St AND Ref(St,-1)>Ref(St,-2);
> pkVal:=ValueWhen(back,pk,Ref(St,-1));
>
> { Stoch troughs }
> tr:=Ref(St,-1)<St AND Ref(St,-1)<Ref(St,-2);
> trVal:=ValueWhen(back,tr,Ref(St,-1));
>
> { Plot in own window }
> St;    { Green }
> pkVal; { Red   }
> trVal; { Blue  }
>
> ---8<--------------------------
>
>
> jose '-)
> http://www.metastocktools.com
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, mwtang <mwtang@xxxx> wrote:
> I would appreciate help in using Valuewhen(). For example :
>
> b1 := Ref(Stoch(5 ,3 ),+0) < Ref(Stoch(5 ,3 ),+1)
> AND Ref(Stoch(5 ,3),+0) < Ref( Stoch(5 ,3 ),-1) ;
>
>   ValueWhen(1 ,b1 ,Ref(Stoch(5 ,3 ),+0 )>
> ValueWhen(2 ,b1 , Ref(Stoch(5 ,3 ),+0);
>
> Could I use more than two valuewhen() i.e
> ValueWhen(3 ,b1 ,Ref(Stoch(5 ,3 ),+0 ) or
> ValueWhen(4 ,b1 ,Ref(Stoch(5 ,3 ),+0 )
> Thank in advance.
> Regards.
> mun wai.






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