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[amibroker] Re: can anyone help me in coding AFL (thanks josun)



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Doh!  Dunno how to preserve the indentations on posting.  Sorry.

--- In amibroker@xxxxxxxxxxxxxxx, "scourt2000" <stevehite@xxxx> 
wrote:
>
> 
> Sorry, the indentations in that code were fine in the Yahoo 
message 
> but were not preserved on the post. Let's see if this works:
> 
> > function myMA(array, period)
> > {
> >   a = Null;
> >  
> >   if (period > 0)
> >   {
> >     for (i = period; i < BarCount; i++)
> >     {
> >       for (j = 0, temp = 0; j < period; j++)
> >       {
> >         temp = temp + array[i-j];
> >       }
> >       a[i] = temp / period;
> >     }
> >   }
> >   return a;
> > }
> > 
> > Example invocation:
> > 
> > period = Param("Moving Average Period", 15, 1, 50);
> > 
> > array = myMA(Close, period);
> > 
> > Plot(array, "", colorRed);
> 
> 
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "scourt2000" <stevehite@xxxx> 
> wrote:
> >
> > 
> > Now, you can tighten that code up a little bit and add a touch 
of  
> > defensive programming (don't let period be <= 0)and then package 
> it 
> > into a function:
> > 
> > function myMA(array, period)
> > {
> >   a = Null;
> >  
> >   if (period > 0)
> >   {
> >     for (i = period; i < BarCount; i++)
> >     {
> >       for (j = 0, temp = 0; j < period; j++)
> >       {
> >         temp = temp + array[i-j];
> >       }
> >       a[i] = temp / period;
> >     }
> >   }
> >   return a;
> > }
> > 
> > Example invocation:
> > 
> > period = Param("Moving Average Period", 15, 1, 50);
> > 
> > array = myMA(Close, period);
> > 
> > Plot(array, "", colorRed);
> > 
> > [added bonus: see how cool Tomasz's Param() function is?...press 
> > Ctrl-R in the chart and vary the size of the moving average]
> > 
> > Programming tip:
> > 
> > Make a preference of using for statements instead of while 
> > statements when the boundaries of your limits are well-
defined.   
> > Your code will be easier to read.
> > 
> > Steve
> > 
> > 
> > --- In amibroker@xxxxxxxxxxxxxxx, "razepy" <razepy@xxxx> wrote:
> > >
> > > it was this formula that i want
> > > many thanks  for your help
> > > 
> > > 
> > > 
> > > --- In amibroker@xxxxxxxxxxxxxxx, "johsun" <joh.sun@xxxx> 
wrote:
> > > >
> > > > a = Null;
> > > > f = 15;
> > > > 
> > > > for ( i = f ; i < BarCount; i++ )
> > > >   { 
> > > > 
> > > >   n = temp = 0;
> > > > 
> > > >   while ( n < f )
> > > > 
> > > >     { 
> > > > 
> > > >     temp = temp + C[ i - n ];
> > > >     n++;
> > > > 
> > > >     } 
> > > > 
> > > >   a[ i ]= temp / f;
> > > > 
> > > >   } 
> > > > 
> > > > Graph0 = a;
> > > > Graph1 = MA( C, f );
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "rasepi" <rasepi@xxxx> 
wrote:
> > > > >
> > > > > hello
> > > > > i am not interested on the MA
> > > > > (i am not a idiot, i believe)
> > > > > my project is to code steve woods float channel indicator
> > > > > i have made a code with VBscript
> > > > > its working but its very slow
> > > > > i tried it in AFL langage buts it no working
> > > > > therefore i have tried coding a simple moving average to 
> > learning
> > > > > buts also no working
> > > > > if you are a professional programmer, can you explain what 
> is 
> > > > false in 
> > > > > this following code?
> > > > > 
> > > > > f=15;
> > > > > for (i=15 ;i<BarCount -1 ;i++);
> > > > > { //begin for loop
> > > > > n=0;
> > > > > temp=0;
> > > > > while (temp < f-1)
> > > > > { //begin while loop
> > > > > temp= temp+ C[i-n];
> > > > > n=n+1;
> > > > > } //end while loop
> > > > > a[i]=temp/15;
> > > > > } //end for loop
> > > > > 
> > > > > Graph0=a;
> > > >
> > >
> >
>







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