Generating matplotlib charts from the terminal

Turn numbers into PNG charts. Seven chart kinds supported via offline NL parsing — no LLM required for most requests.

pip install "arka-agent[charts]"

Chart types

Kind	CLI	NL example
line	`arka chart line AAPL TSLA --range 1y`	`compare Apple and Tesla stock last year`
bar	`arka chart bar --data "A:1,B:2"`	`phone sales Apple 230 Samsung 210`
pie	`arka chart pie --data "A:40,B:30"`	`pie chart traffic organic 400 direct 300`
scatter	`arka chart scatter --data "100:200,120:190"`	`scatter ad spend vs revenue 100 200 120 190`
histogram	`arka chart histogram --data "12,15,18,22"`	`histogram response times 12 15 18 22`
pareto	`arka chart pareto --data "A:45,B:28"`	`pareto defects Scratches 45 Dents 28`

Direct CLI

arka chart line AAPL TSLA --range 1y
arka chart bar --data "Apple:230,Samsung:210,Xiaomi:140" --title "Phone sales"
arka chart pie --data "Organic:400,Direct:300,Referral:300" --title "Traffic"

Chart defaults

Store reusable data in ~/.config/arka/charts.yaml:

defaults:
  scatter:
    data: "100:200,120:190,170:280"
    xlabel: "Ad Spend"
    ylabel: "Revenue"
  line:
    tickers: [AAPL, TSLA]
    range: 1y

Charts save to ~/Pictures/arka-generated/ and open automatically on macOS/Linux.

# CHART_OUTPUT_DIR=~/Pictures/arka-generated
# CHARTS_CONFIG=              # override defaults file path

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Generating matplotlib charts from the terminal

Chart types

Direct CLI

Chart defaults

​Chart types

​Direct CLI

​Chart defaults

Chart types

Direct CLI

Chart defaults