untransformed
Untransformed is an adjective describing something that has not been altered by a transformation. In statistics and data analysis, untransformed data refer to measurements in their original scale and units, prior to any mathematical or statistical modification such as logarithms, power transforms, standardization, or normalization. Researchers often compare analyses using untransformed data with those using transformed data to choose a modeling approach that balances interpretability and the fulfillment of model assumptions.
Key considerations include the purpose of transformations: they are commonly used to stabilize variance, normalize distributions,
Examples help illustrate the idea. In linear regression, applying a natural logarithm to the dependent variable
Overall, the term is context-dependent, signaling raw data or a baseline for comparison against transformed analyses.