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Reply at:
http://finance.groups.yahoo.com/group/equismetastock/message/20347
jose '-)
http://www.metastocktools.com
--- In equismetastock@xxxxxxxxxxxxxxx, "John Doe" <ms001122@xxxx>
wrote:
>
> [I am resending this email; not sure if it got posted the first
> time]
>
> Jose,
>
> Thanks for making those changes. By the 1st part of my Q:
> -------------
>> 1) Is it possible to set it up such that it will automatically give
>> the YTD % chnage value based on the date of the last bar (be it in
>> a chart or in an exploration)?
> -------------
> what I meant was:
> - when the next year rolls around, will it automatically generate
> the YTD % change values for the (then) current year or will one have
> to manually go in and set the value in 'Input'?
> - also, while testing it in an Exploration with an end-date set not
> to the last bar but to some point in the past (say, Dec. 6, 1999),
> will it give the YTD % change value for the current year (currently
> 2005) or to the last date set in the exploration (e.g. 1999)?
>
> JD
> ===================
>
>
> From: "Jose Silva" <josesilva22@xxxx>
> Reply-To: equismetastock@xxxxxxxxxxxxxxx
> To: equismetastock@xxxxxxxxxxxxxxx
> Subject: [EquisMetaStock Group] Re: Yearly % change
> Date: Sun, 25 Dec 2005 07:29:39 -0000
>
> JD, I don't understand your first question, as the code currently
> plots the YTD % change by default.
>
> As for the null plot in charts without a full year's data,
> unfortunately the hindsight trick that allows for the determining of
> the last day of the previous year, also prevents any plot within the
> first three bars. The code below takes care of the first incomplete
> year of data, starting from the fourth bar of data.
>
> ==========
> Yearly RoC
> ==========
> ---8<-----------------------------
>
> { Yearly Rate of Change (RoC) v4.1
> Incomplete year begins on 4th data bar.
>
> ©Copyright 2004~2006 Jose Silva.
> The grant of this license is for personal use
> only - no resale or repackaging allowed.
> All code remains the property of Jose Silva.
> http://www.metastocktools.com }
>
> { User inputs }
> method:=Input("Method: [1]%percent, [2]$points",1,2,1);
> yr:=Input("RoC for Year [1800~2200]",
> 1800,2200,2004);
> yrNr:=Input("Yearly RoC: [1]Year, [2]Yearly, [3]Historical",1,3,
2);
> plot:=Input("plot: [1]RoC, [2]Year signals",
> 1,2,1);
>
> { Start/End of year }
> nuYear:=Year()<>Ref(Year(),-1) OR Cum(1)=2;
> YearEnd:=PeakBars(1,-(nuYear OR
> Cum(IsDefined(nuYear))=1 OR Cum(1)=4),1)=0;
> init:=Cum(IsDefined(YearEnd))=1;
>
> { Data Array }
> x:=C;
>
> { Yearly $ RoC change }
> chPts:=x-ValueWhen(1,YearEnd,x);
> chPts:=If(YearEnd=0,chPts,
> Ref(chPts,-1)+x-Ref(x,-1));
>
> { Yearly % RoC change }
> chPer:=(x/ValueWhen(1,YearEnd,x)-1)*100;
> chPer:=If(YearEnd=0,chPer,
> Ref(chPer,-1)+(x/Ref(x,-1)-1)*100);
>
> { Select %/$ RoC method }
> ch:=If(method=1,chPer,chPts);
>
> { Restrict RoC to selected year }
> chYear:=If(Year()=yr,ch,0);
> chYear:=If(Year()=yr,chYear,
> ValueWhen(1,
> init OR YearEnd AND Year()=yr,chYear));
>
> { Historical RoC from beginning of chart }
> chAllPts:=x-ValueWhen(1,Cum(1)=1,x);
> chAllPer:=(x/ValueWhen(1,Cum(1)=1,x)-1)*100;
>
> { Select %/$ historical RoC method }
> chAll:=If(method=1,chAllPer,chAllPts);
>
> { Select type of Yearly RoC }
> YearRoc:=If(yrNr=1,chYear,If(yrNr=2,ch,chAll));
>
> { Plot in own window }
> If(plot=1,YearRoc,nuYear-YearEnd)
>
> ---8<-----------------------------
>
>
> jose '-)
> http://www.metastocktools.com
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