Module: Duration Distribution

Add a chart that counts how many of your annotations are short and how many are long.

Before you start

• Add a module
• Category

Steps

1. Click Add module. The drawer opens on the right.
2. Click + next to Duration Distribution. The module lands at the foot of the page.
3. Wait for the bars to draw. You see 6 bars, one per length band.

Check it worked

The card says "Annotations per duration bucket, stacked by category".

The 6 bands are always the same: 0–0.5s, 0.5–1s, 1–2s, 2–5s, 5–10s and 10s+. Each mark falls in one band, by how long it lasts. GRAPE MARS does not choose the bands from your data, so 2 videos always use the same scale.

Each bar is split by category, in the colour of that category. A tall 0–0.5s bar means most of your marks are very short.

The Excel sheet holds a Bucket column, a Count column, and one further column for each category.

This module has no settings of its own. Change the bands you see by changing the scope.

If something goes wrong

• A module says it has no data

Related

• Module: Annotation Distribution
• Module: Timeline Density
• Export a workspace to Excel