dfr sample for dataframe

Create sample dataframe.

Signature

> dfr sample {flags}

Flags

• --n-rows, -n {int}: number of rows to be taken from dataframe
• --fraction, -f {number}: fraction of dataframe to be taken
• --seed, -s {number}: seed for the selection
• --replace, -e: sample with replace
• --shuffle, -u: shuffle sample

Input/output types:

input	output
any	any

Examples

Sample rows from dataframe

> [[a b]; [1 2] [3 4]] | dfr into-df | dfr sample --n-rows 1

Shows sample row using fraction and replace

> [[a b]; [1 2] [3 4] [5 6]] | dfr into-df | dfr sample --fraction 0.5 --replace

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