Center and scale with StandardScaler()
We've loaded the same dataset named data. Now your goal will be to center and scale them with StandardScaler from sklearn library.
Libraries pandas, numpy, seaborn and matplotlib.pyplot have been loaded as pd, np, sns and plt respectively. We have also imported the StandardScaler.
Feel free to explore the dataset in the console.
Este ejercicio forma parte del curso
Customer Segmentation in Python
Instrucciones del ejercicio
- Initialize
StandardScalerinstance asscalerand fit it to thedata - Transform the
databy scaling and centering it withscaler. - Create a pandas DataFrame from
data_normalizedby adding index and column names fromdata. - Print summary statistics to make sure average is zero and standard deviation is one, and round the results to 2 decimals.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Initialize a scaler
scaler = ____()
# Fit the scaler
____.____(data)
# Scale and center the data
data_normalized = ____.____(data)
# Create a pandas DataFrame
data_normalized = pd.DataFrame(____, index=data.index, columns=data.columns)
# Print summary statistics
print(data_normalized.____().round(____))