R Squared: Difference between revisions
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A reminder of how we calculate variance, we add up the differences from the mean like below. '''Note''' this shows a population and we should divide by n-1 not n but I liked the graphic.<br> | A reminder of how we calculate variance, we add up the differences from the mean like below. '''Note''' this shows a population and we should divide by n-1 not n but I liked the graphic.<br> | ||
[[File:Pop var.png|600px]]<br> | [[File:Pop var.png|600px]]<br> | ||
This was a nice picture<br> | |||
[[File:Variance cal.png|400px]] | |||
Revision as of 04:23, 21 January 2025
Introduction
This is all about R² and R.
What is the difference
Well I guess R² = R squared. R² is the variance between a dependent variable and an independent variable in terms of percentage. Therefore 0.4 R² = 40% and R = 0.2. I guess I agree that using R² does provide an easier way to understand what you mean however there is no sign on R².
Formula for R²
This is given by
A reminder of how we calculate variance, we add up the differences from the mean like below. Note this shows a population and we should divide by n-1 not n but I liked the graphic.
This was a nice picture
