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Strategies & Market Trends : TA-Quotes Plus
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To: Bob Jagow who wrote (7119)10/11/1998 8:21:00 PM
From: Jeff Grover  Read Replies (2) of 11149
 
Bob,

The scan starts looking so far back in order to "sync" up with the proper side of the trade one should be on. I did this because Wilder's formula needs this information (current side) to determine when to switch sides. Memory, as I'm sure you know, is a very important part of an hysteresis based phenomena.

The SAR values are in fact very close to those calculated by many other commercially available packages. The difference in exact value is not significant, and in my testing I've found that it switches sides on the correct day over 90% of the time. When it doesn't hit it right on, it is almost always a single day early, not entirely a bad place to receive a signal.

For all that have asked preveously, SAR - as designed buy Wilder is meant to set trailing stops, not predict next day price.
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