trendable

Adding trendable: y to a variable makes it selectable in the Trend by dropdown when creating a Trending chart in the Charts applet.

WAVE. Quarter of data collection
type: radio
invisible: y
trendable: y {desc: Quarterly}
cvalue: 5
1. Q1 2024
2. Q2 2024
3. Q3 2024
4. Q4 2024
5. Q1 2025

Details

• trendable: y applies only to radio questions. Adding the invisible: y tag ensures that it is hidden from respondents.
• A cvalue tag is required.
• Variables with the trendable tag must use numeric option IDs, and they must be sequential, as shown in the example above.
• Additional options can be added to this variable over time, and the data map will be updated.
• A desc decorator can be included to change the default variable name in the Trend by dropdown menu.