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Strategies & Market Trends : Technical analysis for shorts & longs -- Ignore unavailable to you. Want to Upgrade?


To: Johnny Canuck who wrote (36610)4/1/2002 4:03:45 AM
From: Lachesis Atropos  Respond to of 69370
 
Hi Harry re. Did you calculate the probabilities over all data points for each of the stocks? Yes.

>> What happens when you use only the data points that only include moves of more than 7 percent?

If I am reading you right then the time frame between the two tickers would get out of sync. Magnitude such as a percentage move is difficult to deal with. I am open suggestions!

You are right noise is also difficult to deal with.

The probabilities are not exact as I would like. I used a 7 day moving average as a filter. I fiddled with 2 to 25 day MA's and concluded that a 7 day MA gave the best results. I think this could be further refined. I would guess that the volatility of each ticker could be used as a parameter to increase or decrease the MA for the ticker under analysis. One would still need to eye ball the results.

As it is, the page calculates a 7 day MA for each ticker, then it compares the MA's by direction (disregarding magnitude) over a time period of Jan 1 2001 to March 28 2002. If both 7 day MAs are moving in the same direction on the same day a count is incremented.

I get the probability by dividing the count by the number of trading (308) days in the time period.

If you or anyone else has any ideas let me know.

Lawrence