| """ | |
| Donut Chart | |
| ----------- | |
| This example shows how to make a Donut Chart using ``mark_arc``. | |
| This is adapted from a corresponding Vega-Lite Example: | |
| `Donut Chart <https://vega.github.io/vega-lite/examples/arc_donut.html>`_. | |
| """ | |
| # category: circular plots | |
| import pandas as pd | |
| import altair as alt | |
| source = pd.DataFrame({"category": [1, 2, 3, 4, 5, 6], "value": [4, 6, 10, 3, 7, 8]}) | |
| alt.Chart(source).mark_arc(innerRadius=50).encode( | |
| theta=alt.Theta(field="value", type="quantitative"), | |
| color=alt.Color(field="category", type="nominal"), | |
| ) | |