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Find the linear portion of a curve

  1. Jul 19, 2011 #1
    Hi,

    So I have a set of experimental data and I would like to find the slope of the linear portion of the data. For example, say I have set of points, the first few points are not linear, then there is a chunk of data in the middle that is linear, and then the last several points are very non-linear. I would like to find the slope of this linear portion in the middle but the location and length of the linear portion will be different for each experiment. I could easily do this by just manually removing the non-linear portions of the curve but I would like for the computer to be able to do this automatically. Does anyone have any suggestions on the best way to do this?

    Thanks
     
  2. jcsd
  3. Jul 19, 2011 #2

    hotvette

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  4. Jul 19, 2011 #3
  5. Jul 21, 2011 #4

    jack action

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    Last edited by a moderator: Apr 26, 2017
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