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[amibroker] ATC and "clearing" group 253



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Hi all,

I have been attemting to create "chartable" sectors and industries 
using Quotes Plus data and AFL code that was kindly supplied by a 
poster on this board.The code is posted below.The code initially 
worked as hoped and the sector and industry composites were created 
in group 253.Unfortunately the second day I ran SCAN it somehow 
created a whole new set of industries and sectors.So now I have 2 
sets of composites in Group 253 with differing dates.At this point i 
would like to delete everything in Group 253 and start fresh,but I 
dont know how.I am also concerned that if I delete group 253,I may 
lose all the data in it.I really like Amibroker,but some tasks could 
be a heck of alot simpler.

With all this said,how do I clean up this mess??Also,when i run scan 
each night,am i correct that I run it on all symbols,even though I 
would prefer not to have preferred stocks?Last but not least,how many 
days do I select to run the scan for.My initial selection was to 
create composites going back 5 years.Do I rescan 5 years(n last 
period) each night,do I simply scan just for the latest day..

Code posted below..Thank you

_SECTION_BEGIN("Sector and Industry Composites");

Buy=Sell=Short=Cover=0;

Scan = Status("Action")==3;

if(Scan) {

inc = 1;

sym1 = "~Industry - " + IndustryID(1);

AddToComposite( inc * L, sym1,"L",1+2+4+8+16+128);

AddToComposite( inc * O, sym1,"O",1+2+4+8+16+128);

AddToComposite( inc * H, sym1,"H",1+2+4+8+16+128);

AddToComposite( inc * C, sym1,"C",1+2+4+8+16+128);

AddToComposite( inc * V, sym1,"V",1+2+4+8+16+128);

sym1 = "~Sector - " + SectorID(1);

AddToComposite( inc * L, sym1,"L",1+2+4+8+16+128);

AddToComposite( inc * O, sym1,"O",1+2+4+8+16+128);

AddToComposite( inc * H, sym1,"H",1+2+4+8+16+128);

AddToComposite( inc * C, sym1,"C",1+2+4+8+16+128);

AddToComposite( inc * V, sym1,"V",1+2+4+8+16+128);

}

_SECTION_END();








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