reactable(
iris,
columns = list(
Sepal.Length = colDef(name = "Length"),
Sepal.Width = colDef(name = "Width"),
Petal.Length = colDef(name = "Length"),
Petal.Width = colDef(name = "Width")
),
columnGroups = list(
colGroup(name = "Sepal", columns = c("Sepal.Length", "Sepal.Width")),
colGroup(name = "Petal", columns = c("Petal.Length", "Petal.Width"))
)
)
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