Need Clarification for function detect_feature_sign

[Princec711]

Hi Julius,

I need clarification in function detect feature sign.

1. For calculating feature dependence value we are transforming input by
   obtain_orthogonal_transformed_matrix function and obtain the output from model by sending
   the transformed input to model.
2. For calculating feature sign we are transforming the input by different transformation
   and output from model by sending the transformed input to model.

Output from model for step 1 and 2 is different for same feature.

So can you please clarify why we are using two different transformation for calculating feature dependence value and sign respectively.
Hoping to hear from you soon.

Thankyou in Advance