Re: [amibroker] New file uploaded to amibroker, AmiBroker Email List Archive

Ton,

what I meant is that when you execute the code:

for (i = 0 ; i < 11; i++) MyArray[i] = 0;

you do not creat an array with the length 11 filled with zeros. Rather you have created an array MyArray with the length BarCount which is filled with zeros.

You can easily check this when you add the following code to any chart:

for (i = 0 ; i < 11; i++) MyArray[i] = 1;

"myarray" + WriteVal(MyArray);

you will find that the first 11 elements of the array MyArray are filled with "1" and the rest (up until Barcount) are filled with zeros,

rgds, Ed

----- Original Message -----

From: Ton Sieverding

To: amibroker@xxxxxxxxxps.com

Sent: Friday, June 15, 2007 12:34 PM

Subject: Re: [amibroker] New file uploaded to amibroker

But Ed, please explain me the difference. Look to the AFL formula I posted and check what you get in DbgView. That's an array with 10 elements. How do you call the creation of an array with 10 elements ? Isn't that setting the dimension of an array ? Of course not in the way we are familiar with in other programming languages. But the final result is the same. Or ?

Ton.

----- Original Message -----

From: Edward Pottasch

To: amibroker@xxxxxxxxxps.com

Sent: Friday, June 15, 2007 11:23 AM

Subject: Re: [amibroker] New file uploaded to amibroker

setting a dimension of an array is not possible in Amibroker. Also multi dimensional arrays are not yet possible but I believe this is planned for.

In my opinion datastructures would be handy as well, as ofcourse the possibility to create objects, not sure if these are planned for.

For multidimensional arrays in Amibroker one could use Osaka plugin I believe but as far as I know it is not really easy in use,

Ed

----- Original Message -----

From: Ton Sieverding

To: amibroker@xxxxxxxxxps.com

Sent: Friday, June 15, 2007 11:04 AM

Subject: Re: [amibroker] New file uploaded to amibroker

Hi, good and very practical AFL article. Would be a good text as introduction for the AFL manual. I have a question. Somewhere in this article it says :

Where AFL arrays differ from generic arrays in other programming languages is that AFL arrays always match the bars on the current chart, so the size of the array (ie. the number of values in the array) is the same as the number of bars on the chart. In other programming languages it's usually possible to specify the array size yourself, and store anything you like in the array.

In other words where I can DIMENSION an array and specify its size in other programming languages, according to the above this should be impossible in AFL. But what am I getting with the following AFL instruction ? Isn't this the same as creating an array with 10 elements ?

for (i = 0 ; i < 11; i++) MyArray[i] = 0;

So in my opinion it should be possible to create one dimensional arrays in AFL. And this brings me to the next question. How about two dimensional arrays ? Does AFL support two dimensions in an array ? What happens when I create a two dimensional array in say Basic and pass this array to AFL ?

Regards, Ton.

--- Original Message -----

From: amibroker@xxxxxxxxxps.com

To: amibroker@xxxxxxxxxps.com

Sent: Friday, June 15, 2007 7:01 AM

Subject: [amibroker] New file uploaded to amibroker

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the amibroker
group.

File : /Looping in AmiBroker AFL.pdf
Uploaded by : gp_sydney <gp.investment@gmail.com>
Description : An overview of using loops in AFL, covering arrays & indexing, loop constructs, the switch/case statement, and some examples.

You can access this file at the URL:
http://groups.yahoo.com/group/amibroker/files/Looping%20in%20AmiBroker%20AFL.pdf

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/help/us/groups/files

Regards,

gp_sydney <gp.investment@gmail.com>