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Herman -
I think that this is a useful discussion about AA output, so let's continue a little.
I've used the technique using large watchlists that you suggest, but it has significant limitations - particular where you want varying text columns or multiple ones like the correlation example. I find that the enhancements that I covet fall into two categories.
1. Raw column output to the AA grid - this gives you FULL control over what is output (text or numbers) with colorization and sorting to get what you want. This is what I mentioned previously and gave the following example -
Ticker1 Ticker2 Correlation
XYZ ABC 0.867
DFG JKI 0.932
As an aside, consider that a flexible grid control is most likely used by AA (either a third party or one that TJ wrote). For those who have used these in other languages, it seems that what Tomasz has done is hide the complexity and also simplify bar and summary output by tying it to AA operations - which is good.
2. Bar-varying text output - this is a little trickier because AFL doesn't have string arrays. What I'd like to do it, for example -
Ticker Date/Time Close Action
SPY 1/3/2008 139.668 Hold and check Open
SPY 1/4/2008 135.245 Sell to close
I can envision a way to do this with CSV strings and a new AddCSVColumn() function, but I try to refrain from suggesting implementations to Tomasz since only he knows all of the considerations. I'd rather just concentrate on the result that I'd like.
Finally, like I said, I've long since found other ways to do these things, but they are more cumbersome. IMHO, I think that a simple, native AFL way would be good for all users.
-- BruceR
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