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+--- Forum: 2D Graphing Page (/forumdisplay.php?fid=4)
+--- Thread: adjusting a normal sin function to fit as a model (/showthread.php?tid=187)
adjusting a normal sin function to fit as a model - tunptl - 25-11-2008 06:02 AM
I am actually a student, and I am having serious trouble adjusting y= sinx to fit with a set of data that I have inputted. My task is to find a function that best models the set of data, and to do that I need to adjust y = sinx so its as "close" as possible to my set of data...I also need to do this with a quartic function and an exponential (rise) function
Re: adjusting a normal sin function to fit as a mo - Simon - 25-11-2008 11:14 PM
Hi tunptl,
To adjust a function to fit a set of data you need to have parameters in your equation:
y = asin(bx + c) + d
Then open the Constant Controller to adjust the equation. Finally, when you select the dataset and the equation you can right-click and choose Best Fit to data. Then Autograph will adjust the parameters to fit.
Hope this helps.
Simon