[amibroker] Re: I need some loop-programming help

["treliff" <treliff@xxxxxxxxx>]

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)) ;
> }
> 
> 
> 
> 
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