Trend Topics

When topics peak — each term plotted at its median year with a Q1–Q3 spread.

The Trend Topics widget.

Overview

A biblioshiny-style trend topics chart: for the most frequent terms it plots a bubble at each term’s median publication year with a line spanning its interquartile (Q1–Q3) year range, so you can read at a glance which topics are historical, current or emerging. Clicking a term outputs its documents.

Inputs

• Data (Table) — keywords + Year.

Outputs

• Selected Documents (Table) — documents of the clicked term.

• Trend Data (Table) — per-term median/quartile years and frequency.

Controls

• Min Documents — ignore terms occurring in fewer documents.

• Top N per Year — how many top terms to label per year.

• Regex Filter — keep only terms matching a pattern.

• Color By + Color Map — colour bubbles by a property (e.g. frequency), default viridis.

• Title / X label / Y label — editable labels.

• Show grid — toggle grid.

Actions: Run Analysis.