Multiple Charts in one HTML #1422
Comments
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Yes, you can export charts as JSON, and use vega-embed to embed as many of them as you'd like into a single page. Altair's You can see a simple example HTML template here: https://altair-viz.github.io/user_guide/saving_charts.html#html-format |
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A more complete answer, for people finding this via Google: If you want to combine multiple charts into a single chart, you can use concatenation: import altair as alt
import pandas as pd
chart1 = alt.Chart(df).mark_point().encode(x='x', y='y')
chart2 = alt.Chart(df).mark_line().encode(x='x', y='y')
(chart1 | chart2).save('charts.html')If for some reason you'd like the charts to be rendered separately and the two renderings embedded into a single HTML page, this is possible, but Altair has no built-in functionality for that. The best approach would be to construct an HTML template using vega-embed directly, and insert the output of Here is a simple example, from which you can use standard HTML/CSS approaches to customize the layout if you wish: import altair as alt
import pandas as pd
two_charts_template = """
<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.jsdelivr.net/npm/vega@{vega_version}"></script>
<script src="https://cdn.jsdelivr.net/npm/vega-lite@{vegalite_version}"></script>
<script src="https://cdn.jsdelivr.net/npm/vega-embed@{vegaembed_version}"></script>
</head>
<body>
<div id="vis1"></div>
<div id="vis2"></div>
<script type="text/javascript">
vegaEmbed('#vis1', {spec1}).catch(console.error);
vegaEmbed('#vis2', {spec2}).catch(console.error);
</script>
</body>
</html>
"""
df = pd.DataFrame({'x': range(5), 'y': range(5)})
chart1 = alt.Chart(df).mark_point().encode(x='x', y='y')
chart2 = alt.Chart(df).mark_line().encode(x='x', y='y')
with open('charts.html', 'w') as f:
f.write(two_charts_template.format(
vega_version=alt.VEGA_VERSION,
vegalite_version=alt.VEGALITE_VERSION,
vegaembed_version=alt.VEGAEMBED_VERSION,
spec1=chart1.to_json(indent=None),
spec2=chart2.to_json(indent=None),
)) |
It looks like magic, and it works ! However, charts are disposed horizontally. Is there a way to make Altair to dispose them vertically ? |
Is there a way to display multiple charts on the same webpage using Altair? I am currently saving the files individually using chart.to_html("filename.html), but can't figure out a way to show the 5 different visuals into one html page.
Please let me know if there's a way to do that.
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