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Thanks for response..
Currently I normalise the data series or the close value, then I put a linear
line on that data, then I take the differences for StdDev calc.
Are you suggesting that I do  this : Take Close (not adjusted), place linear
line on this data, take the difference btw line and closes at 5 min data
points, THEN normalise the DIFF VALUES ??
My scanner works great : 400 stocks of 5 min data in  50 secs...I maintain
ASCII files on my hardrive care of QCollector.
Rgds
Ian McVicar
 
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