codesnips

normalization

python 
from sklearn.pipeline import Pipeline
from sklearn.preprocessing import StandardScaler, MinMaxScaler, RobustScaler
from sklearn.linear_model import LogisticRegression

standard_pipeline = Pipeline([
    ('scaler', StandardScaler()),

Scaling and normalization choices for different model families

feature-scaling normalization machine-learning
by Dr. Elena Vasquez 1 tab
sql 
-- Unnormalized (0NF): Repeating groups
CREATE TABLE orders_bad (
  order_id INT,
  customer_name VARCHAR(100),
  customer_email VARCHAR(100),
  product1 VARCHAR(100),

Database normalization and schema design patterns

database normalization schema-design
by Maria Garcia 2 tabs