Hi - REF operates on the entire array like most other AB functions. It
shifts the array by the number of bars you specify. You can plot a couple of
different REF's to see it in action. When you need to use IF with an array,
use IIF instead -
MARY = IIF( Ref( Lowest_ROC_NUM, 0 ) == 9, 10, 0 );
Also, saying
Ref( Lowest_ROC_NUM, 0 )
shifts the array by zero bars, so it is the same as just using the original
array...
Lowest_ROC_NUM
----- Original Message -----
From: "trfy1120" <trfy1...@yahoo.com>
To: <amibroker@yahoogroups.com>
Sent: Thursday, August 26, 2010 3:58 PM
Subject: [amibroker] Misunderstanding of Arrays
>I have an array called lowest_roc_num.
>
> If I use the test:
>
> JOHN = Ref(Lowest_ROC_NUM,0)==9;
>
> JOHN gets the value of zero or 1 appropriately.
>
> If I use the syntax:
>
> if (Ref(Lowest_ROC_NUM,0) == 9)
> MARY=10;
>
> I get an error message saying that the condition in an IF, WHILE or FOR
> statement must be numeric or boolean, you cannot use an array here. It
> then says to use [] to refer to an element of the array.
>
> I have two problems. First, I thought REF was referring to an element of
> the array rather than the whole array and, second, I don't know how to
> refer to the current bar using [].
>
> Thanks for any help.
>
> TRFY
>
>
>
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