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Re: [amibroker] AFL error



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VJ,
 
if you are using GETCHARTID() in the AA window it will return a 0...
 
you need to insert the chart ID where your Study(su) is located into the formula....you can find the chart id by going to Parameters > axes and grid ...it is at the bottom of the list...so you formula should look like this....
 
example only:
Sell = Cross( Study( "SU" , 1529), Close );
 
Anthony
 
----- Original Message -----
Sent: Sunday, April 08, 2007 12:44 PM
Subject: Re: [amibroker] AFL error

Thank you Anthony!! Thank did not give any error, but I am still trying to get it to work (I am very new to AB, so this might be the reason ).

Best regards,
-VJ

Anthony Faragasso <ajf1111@xxxxxnet> wrote:

Not tested...but try this.
 
Sell = Cross( Study( "SU" , GetChartID()), Close );
 
Anthony

----- Original Message -----
From: dingo
Sent: Saturday, April 07, 2007 7:07 PM
Subject: RE: [amibroker] AFL error

You asked "What is the correct format for using this?"
and that is what is in the help file. It takes 2 arguments not three.
 
d


From: amibroker@xxxxxxxxxps.com [mailto:amibroker@yahoogroups.com] On Behalf Of nasdaq trader
Sent: Saturday, April 07, 2007 7:04 PM
To: amibroker@xxxxxxxxxps.com
Subject: RE: [amibroker] AFL error

There was no reference to Cross with a studyId in the help file. I am specifically trying to learn to use Cross with a study Id.

Best regards
-VJ

dingo <dingo@xxxxxxxxcom> wrote:
why not look up Cross in the help file?
 
d


From: amibroker@xxxxxxxxxps.com [mailto:amibroker@yahoogroups.com] On Behalf Of nasdaq trader
Sent: Saturday, April 07, 2007 6:43 PM
To: amibroker@xxxxxxxxxps.com
Subject: [amibroker] AFL error

I get an error when I run the following, this line is t aken directly from the online reference (reproduced below). The error I get is "too many arguments"

Sell = Cross( Study( "SU" ), Close, GetChartID() );

What is the correct format for using this?

Best regards,
-VJ

========================================

Write the formula that checks trend line break
In this example we will detect if the closing price drops BELOW support trend line. This is actually very simple:
sell = cross( study( "SU" ), close, GetChartID() );
Note that study() function accepts two arguments: the first is StudyID two letter code that corresponds to one given in properites dialog; the second argument is chart ID - it should be taken either via GetChartID() function (then it refers to current indicator) or read from Parameter dialog, Axes & Grid: Miscellaneous: Chart ID

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