dfr filter for lazyframe

Filter dataframe based in expression.

WARNING

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

Signature

> dfr filter {flags} (filter expression)

Parameters

  • filter expression: Expression that define the column selection

Input/output types:

inputoutput
anyany

Examples

Filter dataframe using an expression

> [[a b]; [6 2] [4 2] [2 2]] | dfr into-df | dfr filter ((dfr col a) >= 4)
╭───┬───┬───╮
 # │ a │ b │
├───┼───┼───┤
 0  6  2 
 1  4  2 
╰───┴───┴───╯