Empirical distribution chart

Use an empirical distribution chart (ECDF) to read what share of a sample falls at or below any value, with nothing smoothed.

Over half of replies arrive within eight minutes; about one in seven takes longer than twelve

Minutes to first reply

This chart cannot be displayed here: it needs JavaScript and WebGL.

each step is the share of observations at or below a value; "Observations" counts those exactly at it

The same chart in each style

Source

Open in playground

Rich Markdown

```chart
type: ecdf
title: Over half of replies arrive within eight minutes; about one in seven takes longer than twelve
subtitle: Minutes to first reply
data:
  inline:
    - {minutes: 3.1}
    - {minutes: 4.2}
    - {minutes: 4.8}
    - {minutes: 5.0}
    - {minutes: 5.3}
    - {minutes: 5.9}
    - {minutes: 6.1}
    - {minutes: 6.4}
    - {minutes: 6.6}
    - {minutes: 7.0}
    - {minutes: 7.2}
    - {minutes: 7.5}
    - {minutes: 7.9}
    - {minutes: 8.3}
    - {minutes: 8.8}
    - {minutes: 9.4}
    - {minutes: 10.1}
    - {minutes: 10.9}
    - {minutes: 12.0}
    - {minutes: 13.8}
    - {minutes: 15.5}
    - {minutes: 18.9}
encoding: {x: minutes}
axes:
  x: {label: Minutes to first reply}
```

Fields that matter

type: ecdf with encoding.x for the numeric field, one value per row
encoding.color draws one step line per group; encoding.facet splits the chart into panels
The value axis runs from 0 % to 100 %; each jump sits exactly at an observed value
Readouts give the share at or below the value and the number of observations exactly at it; RichView computes both, so they are marked as derived
Rows without an x are listed as excluded; text that is not a number is an error
axes.x sets label, format and unit

Interactions

Hover or focus the chart to read the values at the nearest x; the crosshair snaps to the nearest observation.
Click a legend entry to toggle a group when the chart has several.
Zoom and pan on the x axis with brush, wheel, pinch, keys or double-click; Escape or reset returns to the full range.
Open the Table view, Download PNG or CSV, or Expand the chart.