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distribution family

histogram

Bars showing frequency of values within bins.

Each bar represents a value range (bin); height shows how many observations fall in that range. The shape — skew, kurtosis, modality — IS the story.

When to use

Showing the distribution of a continuous variable across many observations (income brackets, response times).

When NOT to use

You have categorical data (use bar) or just need a single summary (use box-plot).

Rhetorical roles

  • distribute

Variants & related

Required primitives

  • has_axis_titles

Optional primitives

  • has_gridlines
  • has_data_labels

Common anti-patterns

  • bin-choice-distortion
  • truncated-axis

Disambiguation rules

  • Bars touch each other (no gaps) because the x-axis is continuous.
  • If bars have gaps, it is a bar chart of categorical counts, not a histogram.