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I analyzed my data using response surface regression using Minitab. the constant is the model is very close to one of the material properties (strength). I would like to keep the constant at a certain value and run the regression. Is there any way to do so? Thank you

whuber
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Sarah
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    You can make the surface pass through any predetermined set of points that can be fit without error. See https://stats.stackexchange.com/a/50464/919 for the method (illustrated with polynomial responses, but applicable generally). – whuber Sep 22 '20 at 18:29
  • Thank you for sharing the method. I think I got the concept, but when I run it in minitab, it is still gives a constant. Not sure if there is a way to do supress the constant and do regression without it. – Sarah Sep 22 '20 at 22:10
  • I'm sure there is a way--all statistical regression software gives you the option to suppress the constant. You should be able to find out in the help manual. – whuber Sep 22 '20 at 22:14

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