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To: bdog who wrote (6103)8/22/1998 10:20:00 PM
From: gonzongo  Read Replies (1) | Respond to of 11149
 
yes from one feeble programmer to another- nested if's work much faster because you eliminate data fast and don't have to ask all the other if questions:
example:
if close(0)> 10 then
eliminates all stocks < 10 from the rest of the subsequent if statements.

etc.
etc.

so avoid and and replace with more "if-then-endif"'s

g



To: bdog who wrote (6103)8/23/1998 2:21:00 PM
From: Bob Jagow  Read Replies (1) | Respond to of 11149
 
re nested ifs, bdog.
-as you probably recall, the reason for nesting is that qpr2 lacks short-circuit evaluation logic:
if cond1 and cond2 and cond3 evaluates all 3 even if cond1 is false.
-the big saving is in avoiding assignment to a complicated formula such as StocRSI by nesting it at the bottom.
-be sure to run benchmarks in duplicate; the repeat will often be much faster -- recent builds apparently implement a lot more caching.

Bob


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