Go package to make lightweight ASCII line graph ╭┈╯ in command line apps with no other dependencies.
Clone or download
guptarohit Update asciigraph_test.go
Add test case for all 0 values in data.
Latest commit 1bc9b24 Jan 12, 2019

README.rst

asciigraph

Build status Go Report Card Coverage Status GoDoc License

Go package to make lightweight ASCII line graphs ╭┈╯.

https://user-images.githubusercontent.com/7895001/41509956-b1b2b3d0-7279-11e8-9d19-d7dea17d5e44.png

Installation

go get github.com/guptarohit/asciigraph

Usage

Basic graph

package main

import (
    "fmt"
    "github.com/guptarohit/asciigraph"
)

func main() {
    data := []float64{3, 4, 9, 6, 2, 4, 5, 8, 5, 10, 2, 7, 2, 5, 6}
    graph := asciigraph.Plot(data)

    fmt.Println(graph)
}

Running this example would render the following graph:

10.00 ┤        ╭╮
 9.00 ┤ ╭╮     ││
 8.00 ┤ ││   ╭╮││
 7.00 ┤ ││   ││││╭╮
 6.00 ┤ │╰╮  ││││││ ╭
 5.00 ┤ │ │ ╭╯╰╯│││╭╯
 4.00 ┤╭╯ │╭╯   ││││
 3.00 ┼╯  ││    ││││
 2.00 ┤   ╰╯    ╰╯╰╯

Command line interface

This package also brings a small utility for command line usage. Assuming $GOPATH/bin is in your $PATH, simply go get it then install CLI.

CLI Installation

go install github.com/guptarohit/asciigraph/cmd/asciigraph

Feed it data points via stdin:

$ seq 1 72 | asciigraph -h 10 -c "plot data from stdin"
72.00 ┼
65.55 ┤                                                                  ╭────
59.09 ┤                                                           ╭──────╯
52.64 ┤                                                    ╭──────╯
46.18 ┤                                             ╭──────╯
39.73 ┤                                      ╭──────╯
33.27 ┤                              ╭───────╯
26.82 ┤                       ╭──────╯
20.36 ┤                ╭──────╯
13.91 ┤         ╭──────╯
 7.45 ┤  ╭──────╯
 1.00 ┼──╯
         plot data from stdin

Acknowledgement

This package is golang port of library asciichart written by @kroitor.

Contributing

Feel free to make a pull request! :octocat: