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Graphical Analysis removing y-intercept

  1. Sep 4, 2012 #1
    Hello, I am trying to remove the y-intercept from my linear fit with this software since my equation is y=mx and NOT y=mx+b, so I need to figure out how to remove the y-intercept so my data will have a smaller % error, because the intercept makes the slope larger than it should be. Any ideas how to do this? (yes I checked online, tutorial, help menu, etc)!!
     
  2. jcsd
  3. Sep 4, 2012 #2

    jedishrfu

    Staff: Mentor

    what software?
     
  4. Sep 4, 2012 #3

    chiro

    User Avatar
    Science Advisor

    Do an analysis that gives a parameter estimate for the intercept for a simple linear regression of y against x, and then subtract that value from all the y-values and re-do the regression with these new ones.
     
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