Dealing with Skewed data using Boxcox transformation by adding 1 I was trying to reduce the skewness of data using boxcox transformation. But was facing an error:


  ValueError: Data must be positive.


I figured out why it was throwing an error, my data ranged from .0 to 1 so I added one and it worked. 

Although is it the right way to deal with it?
Boxcox you need to tune the lambda parameter, in order to transform the data to normal one (and than its implicitly non-skewed) however, I would suggest to rather use log transform, its faster.