A histogram is a chart that displays the distribution of a numeric variable by grouping values into intervals or “bins.” It helps reveal the shape, spread, and central tendency of a data set.
Unlike bar charts (which compare categories), histograms focus on how data is distributed along a continuous scale.
When to Use a Histogram
- Analyze data distribution (e.g., normal, skewed, bimodal)
- Detect outliers or data anomalies
- Understand customer behavior (e.g., order sizes, session durations)
Best Practices
- Choose bin width carefully — not too wide or narrow
- Label axes clearly to indicate ranges and frequency
- Avoid overlapping histograms unless color-separated
Histograms in ClicData
- Create histograms by defining numerical bins
- Overlay mean or median reference lines
- Use to segment customers, analyze sensor data, or study performance patterns