dfr min
for expression
Creates a min expression or aggregates columns to their min value
Signature
> dfr min {flags}
Input/output types:
input | output |
---|---|
any | any |
Examples
Min value from columns in a dataframe
> [[a b]; [6 2] [1 4] [4 1]] | dfr into-df | dfr min
╭───┬───┬───╮
│ # │ a │ b │
├───┼───┼───┤
│ 0 │ 1 │ 1 │
╰───┴───┴───╯
Min aggregation for a group-by
> [[a b]; [one 2] [one 4] [two 1]]
| dfr into-df
| dfr group-by a
| dfr agg (dfr col b | dfr min)
╭───┬─────┬───╮
│ # │ a │ b │
├───┼─────┼───┤
│ 0 │ one │ 2 │
│ 1 │ two │ 1 │
╰───┴─────┴───╯
Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe
flag