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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by wlim[/i] [br]In the help section on LR, we have the following note: lr.maxLRange: The percentage of the entire data range to perform a linear regression on. lr.chkLinearR: Sets the amount of tolerance in the automatic determination of linear segments. lr.chkLinearR=10 (default value set in orgsys.cnf) Question: what is the tolerance unit for lr.chkLinearR? Is it in percentage? I was trying to check the behaviour of this tolerance on a dataset with the following labtalk script: LR.maxLRange=80; lr.chkLinearR=90; %z=Data1; LR -b %z_B; Data1 is A B 10 10 9 9 8 8 7 7 6 6.1 (purposely put to be deviated from 6 by 0.1) 5 5 4 4 3 3 2 2 1 1 If lr.chkLinearR=90 is in percentage, the LR should take all 80% of the range (as define by LR.maxLRange=80) starting from row 1 to row 9. However, the result only take the first 4 points only. Trying other values of lr.chkLinearR (say 1000) give the same result. It would be very helpful if somebody can clarify the definition of lr.chkLinearR. Thanks! Wlim Edited by - wlim on 01/14/2004 6:36:14 PM [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.