W3cubDocs

/Nushell

`histogram` for chart

Creates a new table with a histogram based on the column name passed in.

Signature

> histogram {flags} (column-name) (frequency-column-name)

Flags

--percentage-type, -t {string}: percentage calculate method, can be 'normalize' or 'relative', in 'normalize', defaults to be 'normalize'

Parameters

column-name: column name to calc frequency, no need to provide if input is just a list
frequency-column-name: histogram's frequency column, default to be frequency column output

Input/output types:

input	output
list<any>	table

Examples

Compute a histogram of file types

>ls|histogramtype

Compute a histogram for the types of files, with frequency column named freq

>ls|histogramtypefreq

Compute a histogram for a list of numbers

> [121] |histogram
╭────┬────────┬────────┬──────────┬────────────┬────────────────────────────────────────────────────────────────────╮
│# │ value  │ count  │ quantile │ percentage │                             frequency                              │
├────┼────────┼────────┼──────────┼────────────┼────────────────────────────────────────────────────────────────────┤
│0│1│2│0.67│66.67%│******************************************************************│
│1│2│1│0.33│33.33%│*********************************│
╰────┴────────┴────────┴──────────┴────────────┴────────────────────────────────────────────────────────────────────╯

Compute a histogram for a list of numbers, and percentage is based on the maximum value