dfr arg-where
for expression
Creates an expression that returns the arguments where expression is true.
WARNING
Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe
flag
Signature
> dfr arg-where {flags} (column name)
Parameters
column name
: Expression to evaluate
Input/output types:
input | output |
---|---|
any | any |
Examples
Return a dataframe where the value match the expression
> let df = ([[a b]; [one 1] [two 2] [three 3]] | dfr into-df);
$df | dfr select (dfr arg-where ((dfr col b) >= 2) | dfr as b_arg)
╭───┬───────╮
│ # │ b_arg │
├───┼───────┤
│ 0 │ 1 │
│ 1 │ 2 │
╰───┴───────╯