Why Transform Variables?
Industrial data is rarely perfectly linear. Variable transforms help linearize curved relationships so the model can understand them.
Common transforms:
Common transforms:
- LOG10(x) — compresses large values, reduces skew
- LN(x) — straightens exponential relationships
- SQRT(x) — softens steep positive curves
- 1/x — converts inverse relationships to linear
- x² — strengthens weak relationships
- Z-score — standardizes variables with different scales
- Min-Max — normalizes values to 0–1 range
Try it in the app
Try: In the Vars tab, select an X variable → click the transform dropdown → choose LOG10 → re-run regression and compare R² before and after.