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Hi,
I have the following construct in AA:
AFL codes
......
......
porosityTags = Cross ( S1_curve, price );
priceBelowSupportTags = IIf( 100*((price - S1_curve)/S1_curve) < -
S1_porosityPct , 1 , 0 );
....
...
....
...
AddColumn ( price , "price" , 1.2 );
AddColumn ( S1_curve , "S1" , 1.2 );
Filter = (StrLeft(Name(),1) != "^") AND EMA(V,50) >= 50000 AND (EMA
(price,200) - price)/price > 0.3 AND ( price <= ( s1_curve +
S1band ) AND price >= ( s1_curve - S1band ) ) ;
My questions is:
- Does the location of the FILTER statment important? I do not want
to explore on indexes (symbol with ^ as the first character), Stocks
must have average volume of more than 50000 shares a day etc. If I
place the FILTER statement at the end; will AB still execute all AFL
statements above but just not print out the result or Does AB skip
the stock completely if the stock does not meet for example the
average volume condition.
- Can I have multiple FILTER statement?
- One of the condition is 200 EMA volume. if Range was selected
as "n last quotation" and "n=1". This setting seems only affect the
Addcolumn statement but not the AB's EMA function, meaning it only
print out the last met(filter) quote but the EMA(price,200) is still
computed normally. Is this understanding correct.
TIA
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