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Excellent points. In this case I may have been rushing to the hard
part (for me, that is, the loop-code) before getting the basics
right.
Btw I am not so sure about using "result" on both sides of the
definition, in general that is, as I used an earlier message code
assistance (msg. 60062) as a guideline (admittedly a completely
different function).
Thanks for your input.
treliff
--- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS"
<TSOKAKIS@xxxx> wrote:
> It would be better, before the exercise, to check the formula you
use.
> a.
> In your basic
> result = ((i-1)/i)*result + (1/i)*Ref(C,-(i-1)) ;
> "result" can not be in both sides of the definition.
> On the other side, a simple MA is not a recursive function.
> For the simple MA(C,3) the last value is
> M0=(C0+C1+C2)/3
> The previous value is
> M1=(C1+C2+C3)/3
> As you see, C0 is not included in M1 calculation.
> b.
> Since result is a function of i, there should be something like
> result[i]=...
> for the ith element of the result array
> c.
> there is a confusion in Ref(C,-(i-1)) .
> The 801th element of a MA(C,3) in a 1000-bar Close array can not
be a
> function of the Ref(C,-(801-1)) or the Ref(C,-800) !!!
> It would help to read the EMA, AMA analytic formulas from the HELP
> manual.
> Dimitris Tsokakis
> --- In amibroker@xxxxxxxxxxxxxxx, "treliff" <treliff@xxxx> wrote:
> > Looping stuff.... I've had some guidance from the forum and TJ
> > and
> > thought I got it, but every new loop I take on gets stuck.
> >
> > I went back to the basics, as an exercise trying to write a
> function
> > loop for a simple moving average:
> >
> > function MN(n)
> > {
> > // local result;
> > result = C ;
> > for (i=2;i<BarCount;i++)
> > {
> > result = ((i-1)/i)*result + (1/i)*Ref(C,-(i-1)) ;
> > }
> > return result;
> > }
> > Plot(MN(2),"MN(2)", colorBlue);
> > Plot(MA(C,2),"MA(2)",colorRed);
> >
> > Just doesn't work, my MN(n) is empty for every n. What's
> > wrong?
> > Thanks for your patience with me.
> >
> > treliff
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