22 lines
599 B
Python
22 lines
599 B
Python
"""
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Step Chart
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----------
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This example shows Google's stock price over time.
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This uses the "step-after" interpolation scheme.
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The full list of interpolation options includes 'linear',
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'linear-closed', 'step', 'step-before', 'step-after', 'basis',
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'basis-open', 'basis-closed', 'cardinal', 'cardinal-open',
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'cardinal-closed', 'bundle', and 'monotone'.
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"""
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# category: line charts
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import altair as alt
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from vega_datasets import data
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source = data.stocks()
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alt.Chart(source).mark_line(interpolate='step-after').encode(
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x='date',
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y='price'
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).transform_filter(
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alt.datum.symbol == 'GOOG'
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)
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