Checking for correlated features
You'll now return to the wine
dataset, which consists of continuous, numerical features. Run Pearson's correlation coefficient on the dataset to determine which columns are good candidates for eliminating. Then, remove those columns from the DataFrame.
This exercise is part of the course
Preprocessing for Machine Learning in Python
Exercise instructions
- Print out the Pearson correlation coefficients for each pair of features in the
wine
dataset. - Drop any columns from
wine
that have a correlation coefficient above 0.75 with at least two other columns.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Print out the column correlations of the wine dataset
print(____)
# Drop that column from the DataFrame
wine = wine.____(____, ____)
print(wine.head())