Vector or data frame to be Kendall-transformed; allowed feature types are numeric, integer (treated as numeric), ordered factor, logical and unordered factor with two or less levels.
NA and non-finite values are allowed; NaN is treated as NA.
Value
A transformed vector or data frame with transformed columns.
References
"Kendall transformation brings a robust categorical representation of ordinal data" M.B. Kursa. SciRep 12, 8341 (2022).