topic Difference of R^2 Value in Multivariate & Line of Fit (Graph Builder) in Discussions

Difference of R^2 Value in Multivariate & Line of Fit (Graph Builder)

PieFerret952 — Wed, 23 Jul 2025 06:35:19 GMT

I am using same dataset for two ways to get the r^2 value but they have different results. Whats the difference between the two?

1. Analyze > Multi Variate

2. Graph same parameters in X & Y and get the R^2 of line of fit

Re: Difference of R^2 Value in Multivariate & Line of Fit (Graph Builder)

jthi — Wed, 23 Jul 2025 08:08:43 GMT

I assume you are comparing R^2 from graph builder to Correlations table in Multivariate platform?

Multivariate Methods > Correlations and Multivariate Techniques > Statistical Details for the Multivariate Platform > Statistical Details for the Pearson Product-Moment Correlation

Basic Analysis > Bivariate Analysis > Statistical Details for the Bivariate Platform > Statistical Details for the Summary of Fit Report (I assume this is same as graph builder)

Re: Difference of R^2 Value in Multivariate & Line of Fit (Graph Builder)

MRB3855 — Wed, 23 Jul 2025 08:43:14 GMT

Hi @PieFerret952 : If you have a regression model, Y vs x, you will see R^2. R is the correlation coefficient you see when you use the multivariate platform. So, R^2 = correlation^2. Or, correlation = +/-sqrt(R^2).