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To force a linear fit to go through a particular Y value at X = 0 you have to use the general fit. For example if you wanted to have Y=4 at X=0 you would use the equation:

  • 4 + b * x;
  • n the general fit dialog. Similarly for Y=0 @ X=0 (the origin) you would useĀ 0 + b * x;

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Posted in: Curve Fitting: Tips