curve-fitting

  1. P

    How to adjust a set/column of numbers closer to 0? Regression? Curve-fitting?

    I'm wondering how I would go about solving this problem: I have a set/column of 60 numbers (percentages). They were generated from a database program which generated them with an input value of 50 Some percentages are above 0, some are below 0. (The range is 5% to -23%.) The 60 numbers are...
  2. P

    Curve fitting: non-standard

    Hi, all I'm trying to use Excel to create a trendline for data that approximates a shifted-power law equation, of the form y=a*(x-b)^c. The built-in formulae in Excel 2007 aren't able to give adequate results, so I would really like to find a method within Excel of obtaining the coefficients...

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