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Strategies & Market Trends : Technical analysis for shorts & longs
SPY 691.66-0.1%Jan 16 4:00 PM EST

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To: Lachesis Atropos who wrote (38678)12/30/2002 2:58:36 PM
From: Johnny Canuck  Read Replies (1) of 69854
 
My stats are little rusty, but I think what he was doing
was:

For a down trend:
1) calculating the probability of the index reversing after
being down 'n' days in a row.
2)calculating the probability of the index reversing after being down 'x' percent
3) The probability of a reversal is probability 1 multiplied
by probability 2.

Similar calculation for the uptrend.

From memory he calculated the percent changes in 1 percent increments for simplicity.
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