Scaling

• scaler

1) Min-max Scaler (최소 최대 변환 / 정규화 Normalization)

$$ X_{new} = \frac{X-X_{min}}{X_{max}-X_{min}} $$

2) Standard Scaler (표준화 Standardization)

$$ X_{new} = \frac{x-\mu}{\sigma} $$