Function inferChartDataset

packages/core/src/chart/index.ts:174–187

(rows: Record<string, unknown>[], declaredFields?: ChartField[])

}

export function inferChartDataset(rows: Record<string, unknown>[], declaredFields?: ChartField[]): ChartDataset {
  const declared = new Map((declaredFields ?? []).map((field) => [field.name, field]))
  const columnNames = rows.length > 0 ? Object.keys(rows[0]) : [...declared.keys()]
  const columns = columnNames.map((name) => {
    const declaredField = declared.get(name)
    if (declaredField) return declaredField
    return {
      name,
      type: inferFieldType(rows.map((row) => row[name])),
    }
  })

  return { columns, rows }
}

function aggregateByLabel(
  rows: Record<string, unknown>[],