Bar chart

Inspired from this Highcharts demo

import easychart
import pandas as pd

data = pd.DataFrame(
    [
        [107, 31, 635, 203, 2],
        [133, 156, 947, 408, 6],
        [814, 841, 3714, 727, 31],
        [1216, 1001, 4436, 738, 40],
    ],
    index=[1800, 1900, 2000, 2016],
    columns=["Africa", "America", "Asia", "Europe", "Oceania"],
)

chart = easychart.new("bar")
chart.title = "Historic World Population by Region"
chart.subtitle = (
    "Source: <a href='https://en.wikipedia.org/wiki/World_population'>Wikipedia.org</a>"
)
chart.categories = data.columns
chart.yAxis.title = {"text": "Population (millions)", "align": "high"}
chart.tooltip = "{value:.0f}m"
for year in data.index:
    chart.plot(data.loc[year], name=year, datalabels=(year == 2016))
chart