dfr otherwise
for expression
completes a when expression.
Signature
> dfr otherwise {flags} (otherwise expression)
Parameters
otherwise expression
: expression to apply when no when predicate matches
Input/output types:
input | output |
---|---|
any | any |
Examples
Create a when conditions
> dfr when ((dfr col a) > 2) 4 | dfr otherwise 5
Create a when conditions
> dfr when ((dfr col a) > 2) 4 | dfr when ((dfr col a) < 0) 6 | dfr otherwise 0
Create a new column for the dataframe
> [[a b]; [6 2] [1 4] [4 1]]
| dfr into-lazy
| dfr with-column (
dfr when ((dfr col a) > 2) 4 | dfr otherwise 5 | dfr as c
)
| dfr with-column (
dfr when ((dfr col a) > 5) 10 | dfr when ((dfr col a) < 2) 6 | dfr otherwise 0 | dfr as d
)
| dfr collect
╭───┬───┬───┬───┬────╮
│ # │ a │ b │ c │ d │
├───┼───┼───┼───┼────┤
│ 0 │ 6 │ 2 │ 4 │ 10 │
│ 1 │ 1 │ 4 │ 5 │ 6 │
│ 2 │ 4 │ 1 │ 4 │ 0 │
╰───┴───┴───┴───┴────╯
Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe
flag