Correlation Heatmap Visualization

This visualization shows the correlation matrix for numeric variables in the heart disease dataset. Each cell represents the correlation coefficient between two variables, with:

• Red colors indicating negative correlation
• Blue colors indicating positive correlation
• White indicating no correlation (value near 0)

Features

• Interactive heatmap with hover tooltips showing correlation values and descriptions
• Clear axis labels with readable variable names
• Legend with descriptive title
• Improved text contrast for better readability

Variables

• Age: Patient age
• Resting BP: Resting blood pressure (mm Hg)
• Cholesterol: Serum cholesterol (mg/dl)
• Max HR: Maximum heart rate achieved
• ST Depression: ST depression induced by exercise relative to rest