How to crop my curve in the curve fitting tool ?

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How want to crop my curve in the curve fitting tool , in order to fit a proper curve for the cropped out part.
e.g . I want to only work in the portion between 0.2 < x < 1.2 .
I have tried changing the axis limits but it does nothing, it just zooms in or out .
Thanks.

Accepted Answer

John D'Errico
John D'Errico on 28 Oct 2017
Just crop the data BEFORE it goes into the curvefitting tool. Only pass in what you knowyou want to fit. Why is this a problem?
  2 Comments
Anshuman S
Anshuman S on 28 Oct 2017
The data set is huge, close to 32,000 points. Chosing the required data set from numbers would be a difficulty I suppose.
Anshuman S
Anshuman S on 28 Oct 2017
Thanks! I did it in numbers using the filter option.

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