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Ed, thanks so much, it works, though this is at first a piece of
inscrutable code for me. A closer look though reveals the mechanics.
Tell me if you will, you wouldn't happen to know some concise
document (possibly on the net) that reveals how to write these
codes? (I'm not a programmer, is this C++, Pascal, other?)
I considered purchasing some programming manual but will probably
get much more information than in need for use in AB. Any
suggestions?
Thanks again,
Treliff
--- In amibroker@xxxxxxxxxxxxxxx, "ed2000nl" <pablito@xxxx> wrote:
> hi,
>
> this is one way to do it (the AddColumn is just for testing
purposes):
>
>
> function fff(n) {
>
> return log(C/Ref(C,-n))/(StDev(log(C/Ref(C,-1)),n)*sqrt(n));
>
> }
>
>
> function ggg(n) {
>
> g = 0;
>
> if (n >= 10) {
>
> for (i = 10; i <= n; i++) {
>
> g = g + fff(i);
>
> }
>
> }
>
> return g;
>
> }
>
>
> Filter = 1;
> AddColumn(ggg(10),"ggg(10)");
> AddColumn(ggg(11),"ggg(11)");
> AddColumn(ggg(12),"ggg(12)");
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "treliff" <treliff@xxxx> wrote:
> > Thanks Graham,
> >
> > I tried your suggestion but changing "g" to "gr" within the code
is
> > not the solution since now it returns a syntax error re. "gr
(10)".
> > The problem is in the brackets I think but I wouldn't know how
to
> > code without brackets to initiate the loop.
> >
> > Possibly indeed the use one function within another is a
problem,
> > though I suspect this should be possible.
> >
> > Treliff
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx>
wrote:
> > > I think the problem comes that you are using the functioning
you
> > are trying
> > > to define within the function itself. Try changing that g()
> inside
> > the
> > > function. Also I am not sure if you can use another function
> > within a
> > > function ie f(n) within g(n) ?
> > >
> > > function g(n)
> > > {
> > > gr(10) = f(10);
> > > for (n=11;n<=30,n++)
> > > {
> > > gr(n) = gr(n-1) + f(n);
> > > }
> > > return gr(n);
> > > }
> > >
> > > Cheers,
> > > Graham
> > > http://e-wire.net.au/~eb_kavan/
> > >
> > > -----Original Message-----
> > > From: treliff [mailto:treliff@x...]
> > > Sent: Tuesday, March 09, 2004 4:04 PM
> > > To: amibroker@xxxxxxxxxxxxxxx
> > > Subject: [amibroker] I need some loop-programming help
> > >
> > > Hi,
> > > I need some loop-programming help.
> > >
> > > I have already defined a function f(n) (n are integers
10,11,...)
> > > and now I want to define function g(n) such that
> > >
> > > g(10) = f(10)
> > > g(11) = f(10) + f(11)
> > > g(12) = f(10) + f(11) + f(12)
> > > ...
> > > etc. say up to g(30)
> > >
> > > As a clumsy mathematician (not a programmer) I would write
> > something
> > > like:
> > >
> > > function g(n)
> > > {
> > > g(10) = f(10);
> > > for (n=11;n<=30,n++)
> > > {
> > > g(n) = g(n-1) + f(n);
> > > }
> > > return g(n);
> > > }
> > >
> > > but this is obviously wrong, the first syntax error is the use
of
> > > "g(10)" within the code.
> > >
> > > Can anyone help me get this code right? Thanks much in advance.
> > >
> > > PS
> > > Though this seems irrelevant to my question, the function f is
> > > defined as follows:
> > >
> > > function f(n)
> > > {
> > > return log(C/Ref(C,-n))/(StDev(log(C/Ref(C,-1)),n)*sqrt(n)) ;
> > > }
> > >
> > >
> > >
> > >
> > > Send BUG REPORTS to bugs@xxxx
> > > Send SUGGESTIONS to suggest@xxxx
> > > -----------------------------------------
> > > Post AmiQuote-related messages ONLY to:
amiquote@xxxxxxxxxxxxxxx
> > > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > > --------------------------------------------
> > > Check group FAQ at:
> > > http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> > > Yahoo! Groups Links
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
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-----------------------------------------
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