dfr rolling for dataframe

Rolling calculation for a series.

Signature

> dfr rolling {flags} (type) (window)

Parameters

• type: rolling operation
• window: Window size for rolling

Input/output types:

input	output
any	any

Examples

Rolling sum for a series

> [1 2 3 4 5] | dfr into-df | dfr rolling sum 2 | dfr drop-nulls
╭───┬───────────────╮
│ # │ 0_rolling_sum │
├───┼───────────────┤
│ 0 │             3 │
│ 1 │             5 │
│ 2 │             7 │
│ 3 │             9 │
╰───┴───────────────╯

Rolling max for a series

> [1 2 3 4 5] | dfr into-df | dfr rolling max 2 | dfr drop-nulls
╭───┬───────────────╮
│ # │ 0_rolling_max │
├───┼───────────────┤
│ 0 │             2 │
│ 1 │             3 │
│ 2 │             4 │
│ 3 │             5 │
╰───┴───────────────╯

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