transformData(transforms, data, transform.prefix = "tr_", ...)
"tr_".transformTrait function called inside of transformData.
For example, it might be a parameter log.base for transformTrait function
in the case transform is equal to "log".The function looks for traits in colulms of input data frame,
call transformTrait function per trait,
and rename the traits.
By default, the name of a transformed trait is updated
to one with a prefixed given in transform.prefix argument
(the default value is "tr_").
Such renaming is assumed to make the user aware that the trait is transformed.
This function is internally called in solarPolygenic
if transforms argument is specified.
In this case of the polygenic analysis,
the transform operation is invisible to the user.
However, it is recommended to manually transform traits
in other linkage and association analyses.