dfr is-null for dataframe

Creates mask where value is null.

WARNING

Dataframe commands were not shipped in the official binaries by default, you have to build it with --features=dataframe flag

Signature

> dfr is-null {flags}

Input/output types:

inputoutput
anyany

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