1 files changed, 20 insertions, 0 deletions

diff --git a/venv/lib/python3.9/site-packages/altair/examples/streamgraph.py b/venv/lib/python3.9/site-packages/altair/examples/streamgraph.py
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index 00000000..64b8e417
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+++ b/venv/lib/python3.9/site-packages/altair/examples/streamgraph.py
@@ -0,0 +1,20 @@
+"""
+Streamgraph
+-----------------
+This example shows the streamgraph from vega-lite examples.
+"""
+# category: area charts
+import altair as alt
+from vega_datasets import data
+
+source = data.unemployment_across_industries.url
+
+alt.Chart(source).mark_area().encode(
+    alt.X('yearmonth(date):T',
+        axis=alt.Axis(format='%Y', domain=False, tickSize=0)
+    ),
+    alt.Y('sum(count):Q', stack='center', axis=None),
+    alt.Color('series:N',
+        scale=alt.Scale(scheme='category20b')
+    )
+).interactive()