It might help to show how you created the data you need to transform and perhaps a short example of the data you have.     ... View more

@hsellemi wrote: I used the normal scores transformation (Blom method) because of non normal distribution of my data. The Blom transformation is available as an automated option SAS software. My question is How back-transform of Blom transformation results to original data with SAS software? You might provide some example data and what you think the result should be. It may also help to show the code you used to generate the transform in the first place.   Since BLOM involves ranks and the number of records before getting into the  approximation you may have some fun ahead.     ... View more