Parameters | Workflows | Perform shifted log2 transformation:

Perform shifted log 2 transformation:
If the data in the Input SAS Data Set is not log-transformed, but log- transformation is needed for normalization or ANOVA , then choose the appropriate stage at which it should be done.
Before normalization applies log-transformation before normalization.
Before ANOVA applies log-transformation after normalization, but before ANOVA.
To Specify When Transformation Should Be Conducted:
Ensure that the Input data is log-transformed box (if available) is not checked.