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.venv/Lib/site-packages/altair/examples/line_chart_with_points.py

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+"""
+Line Chart with Points
+----------------------
+This chart shows a simple line chart with points marking each value. Use
+``point=True`` for points with default appearance or customize it with
+``OverlayMarkDef()``.
+"""
+# category: line charts
+import altair as alt
+import numpy as np
+import pandas as pd
+
+x = np.arange(100)
+source = pd.DataFrame({
+  'x': x,
+  'f(x)': np.sin(x / 5)
+})
+
+alt.Chart(source).mark_line(
+    point=alt.OverlayMarkDef(color="red")
+).encode(
+    x='x',
+    y='f(x)'
+)