dfr filter-with for dataframe or lazyframe

Signature

> dfr filter-with {flags} (mask or expression)

Parameters

• mask or expression: boolean mask used to filter data

Input/output types:

Examples

Filter dataframe using a bool mask

>letmask= ([truefalse] |dfr into-df);
    [[ab]; [12] [34]] |dfr into-df|dfr filter-with$mask
╭───┬───┬───╮
│# │ a │ b │
├───┼───┼───┤
│0│1│2│
╰───┴───┴───╯

Filter dataframe using an expression

> [[ab]; [12] [34]] |dfr into-df|dfr filter-with ((dfr cola) >1)
╭───┬───┬───╮
│# │ a │ b │
├───┼───┼───┤
│0│3│4│
╰───┴───┴───╯

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