All Forums  Origin Forum  Origin Forum  Polynomial fitting with monotonical increase

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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 Ninine[/i] [br]Origin Ver. and Service Release (Select Help-->About Origin): Operating System: Hi all, I want to fit a 9th order polynomial to the data which should be monotonical within a given range. So there should be no local maximum in the fitted curve. I don't really care how the curve looks like out of that range. The default fitting option gives the curve below. Is there any simple way to constrain the fitting? Thanks!! [img]https://my.originlab.com/ftp/forum_and_kbase/Images/Screen%20Shot%202021-12-11%20at%2017.44.20.png[/img] [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.