Variable name to use in the sankey, sunburst and bubble graphs. This is used when the data set has more than a single variable. Otherwise the first variable will be selected
string
false
Area,
AreaLine,
Bar,
BarLine,
Boxplot,
Circular,
Correlation,
DotLine,
Dotplot,
Fish,
Gantt,
Genome,
Heatmap,
Line,
Map,
Network,
ParallelCoordinates,
Pie,
Sankey,
Scatter2D,
Scatter3D,
ScatterBubble2D,
Stacked,
StackedLine,
StackedPercent,
StackedPercentLine,
TagCloud,
Tree,
Treemap,
Venn