dfr is-null
for dataframe
Creates mask where value is null.
Signature
> dfr is-null
Input/output types:
input | output |
---|---|
any | any |
Examples
Create mask where values are null
> let s = ([5 6 0 8] | dfr into-df);
let res = ($s / $s);
$res | dfr is-null
╭───┬─────────╮
│ # │ is_null │
├───┼─────────┤
│ 0 │ false │
│ 1 │ false │
│ 2 │ true │
│ 3 │ false │
╰───┴─────────╯
Creates a is null expression from a column
> dfr col a | dfr is-null
Tips: Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe
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