Get columns
Get single column by column name:
df.age
df.name.lastName
val age by column<Int>()
val name by columnGroup()
val lastName by name.column<String>()
df[age]
df[lastName]
df["age"]
df["name"]["firstName"]
Get single column by index (starting from 0):
df.getColumn(2)
df.getColumnGroup(0).getColumn(1)
Last modified: 27 September 2024