Linear regression statistics output

OLDen shared this question 4 years ago

Answered

When I do linear regression there is an statistics output with r, rho and R^2.

Normally rho^2=R^2 when we do linear regression, but I can see that r^2=R^2.

My question: how is rho calculate in Geogebra?

Regards

Olav Lyndrip

Comments (4)

Simona Riva ● 4 years ago

Not sure about terminology (we use a different one in Italy), do you mean the Pearson's correlation coefficient?

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OLDen ● 4 years ago

Yes, thats correct.

But in the output statistics window as

6be3e42599d7e1d63267633b0683d701

both r and rho is calculated.

What is the difference?

Regards

Olav

URL

Michael Borcherds ● 4 years ago

ρ is Spearman's Rank Correlation Coefficient

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OLDen ● 4 years ago

Thanks.

Olav

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