_stackLayout(data) { return d3 .stack() .keys(data.columns.filter(col => col !== 'day')) .offset(d3.stackOffsetSilhouette) .order(d3.stackOrderInsideOut)(data); }
_stackLayout(data) { return d3.stack().keys(data.columns.filter(col => col !== 'day'))(data); }
d3.stack() .keys(d3.range(1, totalSeasons + 1).map(key => `season-${key}`))
]); const stackedData = d3.stack().keys(keys)(data);