Techniques Present in Feature Transformation:
Categorical features encoding,Mathematical transformation,Feature Scaling,Feature Selection.
Types of categorical features encoding:
(a) One-Hot Encoding,(b)Label/Ordinal Encoding
Mathematical transformation
(a)Logarithmic transformation,(b)Reciprocal transformation,(c)Square transformation,(d)Box-Cox transformation,(e)Yeo-Johnson transformation
Feature Scaling
(a)Normalization(Min-Max Scaling),(b)Standardization,(c)RobustScaler Scaling
Feature Selection
(a)Pearson's Correlation Coefficient matrix, (b)Chi-square Test