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[amibroker] Using Composites to chart Spreads



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Dear Listfellows,

I am using the following formula to calculate a commodity spread:

AddToComposite( Close - Foreign("S X2004", "C" ), "~SPREAD " + Name() + "-S
X2004", "X" );

Buy = 0;

To make it work, I open a commodity chart, say S F2004, then use the Auto
Analysis: load the ATC formula and SCAN.

I chart several commodities with their spreads, so that I have several
formulas saved.

I have noticed that the spreads composites don't update by themselves, so
that I have to repeat every day the same tasks for all of them, as I was
creating them again.

My question is basically the following: can't composites update themselves
automatically, once the underlying securities update (I am using EOD
aSignal's data throug AmiQuote)?

Do you have any other suggestion to improve afficency?

Thanks to everyone and for everything (especialy to TJ).

Alberto


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