#THIS IS A PREPROCESSING STAGE/STEP
#CAN BE USED BEFORE OF AFTER PRINCIPAL COMPONENT ANALYSIS (PCA): which reduces number of features
#It advised to use this before PCA though
Skips the yTrain Col
Skips categorical cols cus they are known to have close range of values (optional)
Skips cols with close/small range of values (optional)
Target for small range of vals
#Methods:
#DIV BY MAX
elmt = elmt / max
print range of values (min to max)
#MEAN NORM
get avg
elmt = (elmt - avg) / (max - min)
print range of values (min to max)
#Z-SCORE NORM
get stdDev
get avg
elmt = (elmt - avg) / stdDev
print range of values (min to max)