Graphical Analysis removing y-intercept

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SUMMARY

The discussion focuses on the need to remove the y-intercept from a linear fit equation, specifically in the context of a model defined as y=mx rather than the standard y=mx+b. The user seeks methods to achieve this using graphical analysis software. A recommended approach involves performing a simple linear regression to estimate the intercept, subtracting this value from all y-values, and then redoing the regression with the adjusted data to minimize percentage error.

PREREQUISITES
  • Understanding of linear regression analysis
  • Familiarity with graphical analysis software
  • Knowledge of parameter estimation techniques
  • Basic statistical concepts related to error minimization
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  • Research methods for performing simple linear regression in your chosen software
  • Learn about parameter estimation and its application in regression analysis
  • Explore techniques for error minimization in statistical models
  • Investigate graphical analysis tools that support custom regression equations
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Data analysts, statisticians, and researchers involved in linear modeling and regression analysis who need to refine their models by eliminating the y-intercept for improved accuracy.

member 392791
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)!
 
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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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