Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Error bars, Chi square distribution

  1. Jan 20, 2015 #1
    Hi, I'm doing a fit using Chi-square distribution. I have a data set and their errors, I found the best estimate minimizing Chi square, as usual, and I like to found the error bars of my best estimates but I don't know how to do that. Which is the standard form to do it?
  2. jcsd
  3. Jan 20, 2015 #2

    Quantum Defect

    User Avatar
    Homework Helper
    Gold Member

    It depends upon what functional form you are fitting. Look in Bevington: "Data Reduction and Error Analysis for the Physical Sciences" for a description of estimating uncertainties on best-fit parameters. Lines are straightforward, and you can find equations by googling.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook