# https://altair-viz.github.io/gallery/simple_line_chart.html

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().encode(x="x", y="f(x)")
