- Thread starter lorenzovonmt
- Start date
- Tags design of experiments doe

Oddly, no. It is still technically a linear regression. See Spunky's recent post at http://www.talkstats.com/threads/linear-vs-non-linear-functions.77498/#post-229519

You have four columns of predictor variables (including X1sq). The response Y = constant + A.variable 1 +B.variable 2 +C.variable 3 +D.variable 4 It is this pattern that makes it a linear regression. The regression finds A, B, C and D.

Y =A.(variable 1 +B.variable 2)/variable 3 would be non linear.

You have four columns of predictor variables (including X1sq). The response Y = constant + A.variable 1 +B.variable 2 +C.variable 3 +D.variable 4 It is this pattern that makes it a linear regression. The regression finds A, B, C and D.

Y =A.(variable 1 +B.variable 2)/variable 3 would be non linear.

Last edited:

Google curve straightening or linearizing curves. It is a very common thing to do in physics and engineering.