How can I create a correlation matrix in Python?

How can I create a correlation matrix in Python?

You can use the pandas library to create a correlation matrix. First, ensure you have pandas installed.

What code do I need to write?

Here's a simple example:

import pandas as pd

# Sample data
data = {'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8, 9]}
df = pd.DataFrame(data)

# Create correlation matrix
correlation_matrix = df.corr()
print(correlation_matrix)

What does the output look like?

The output will be a DataFrame showing the correlation coefficients between the columns. For example:

          A    B    C
A  1.000000  1.0  1.0
B  1.000000  1.0  1.0
C  1.000000  1.0  1.0

Can I visualize the correlation matrix?

Yes! You can use seaborn to create a heatmap of the correlation matrix. Would you like an example?