Chart Editing

Edit .chart.yml files that define OWID Grapher chart configurations, then preview changes.

File Locations

• Chart configs: etl/steps/graph/<namespace>/<version>/<short_name>.chart.yml
• Schema: schemas/chart-schema.json (read this to understand valid fields)
• DAG definitions: dag/graph/<namespace>.yml (maps graph steps to data dependencies)

Before Editing

1. Read the schema at schemas/chart-schema.json to understand all valid fields, enums, and nested structures
2. Read the target .chart.yml to understand current config
3. Check the DAG in dag/graph/<namespace>.yml to understand which dataset the chart depends on

Chart Config Formats

Simple format (single indicator)