22 lines
475 B
Python
22 lines
475 B
Python
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"""
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Cumulative Count Chart
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----------------------
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This example shows an area chart with cumulative count.
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Adapted from https://vega.github.io/vega-lite/examples/area_cumulative_freq.html
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"""
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# category: area charts
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import altair as alt
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from vega_datasets import data
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source = data.movies.url
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alt.Chart(source).transform_window(
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cumulative_count="count()",
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sort=[{"field": "IMDB_Rating"}],
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).mark_area().encode(
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x="IMDB_Rating:Q",
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y="cumulative_count:Q"
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)
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