Shouldn't be a problem to have an array have more elements then you need ... I dod stuff like this all the time ... Memory is cheap ...
--- In [email protected], "Ton Sieverding" <[EMAIL PROTECTED]> wrote: > > Thanks Fred. I understand that when I am creating an array based upon a security, AB will give me an 'AB home made' array for this security. There is no problem about. But I am not using data coming from a security but creating my own time serie for let's say 'Modern Portfolio Theory' ( Eff. Frontier ) and want to show the EF using the created arrays with the GFX instructions. That's all ... > > Regards, Ton. > > ----- Original Message ----- > From: Fred > To: [email protected] > Sent: Friday, June 15, 2007 6:41 PM > Subject: [amibroker] Re: New file uploaded to amibroker > > > If we are talking OUTSIDE of AB / AFL like in vbs etc ... yes it does. > > Inside AFL it essentially does the same thing as well ... However, > you would also by default have available elements 12 i.e. [11] > through the number of bars in the charted security. The simple way > to think of this is that AB is providing the DIMENSION statement for > you and it will contain the same number of elements that are in the > charted security and it will be aligned to the charted security. > Hwever you can use whatever elements of the array you want ... If for > some reason that's only 1 through 10 then so be it. > > --- In [email protected], "Ton Sieverding" > <ton.sieverding@> wrote: > > > > Correct about 11 elements of course. Quickie. Sorry for that. But I > still do not understand what the difference between the size of an > array and the number of elements in an array is. Forget AFL for a > moment. When I create an array with one of the popular statements > like DIMENSION MyArray(10) does not give me this the same result as > underneath mentioned For Loop ? I am probably missing something ... > > > > Regards, Ton. > > > > ----- Original Message ----- > > From: gp_sydney > > To: [email protected] > > Sent: Friday, June 15, 2007 12:04 PM > > Subject: [amibroker] Re: New file uploaded to amibroker > > > > > > > Isn't this the same as creating an array with 10 elements ? > > > for (i = 0 ; i < 11; i++) MyArray[i] = 0; > > > > No, ignoring the fact it's actually 11 elements (ie. 0-10). That's > > just filling the first 11 elements of the array, it doesn't > define the > > size of the array. If you tried that on a chart that only had five > > bars, you'd get an array overflow error. > > > > > How about two dimensional arrays ? > > > > AFL doesn't directly have two-dimensional arrays, but I did see > > something on the AB site once about effectively creating them > using > > the VarSet and VarGet functions. Looked pretty messy though. > > > > GP > > >
