Altair: Add chart titles

[areaweb]

Is there a way to add a title to the chart? If not, could there be?

[jakevdp]

I don't think there is. You could put in a feature request on Vega-Lite; Altair itself doesn't control the addition of new plot elements.

[jakevdp]

Of course, since the resulting chart is (usually) rendered in HTML, you can always add an HTML title that would appear above the chart. But I agree a built-in title specification would be useful.

[areaweb]

Got it, thanks for the reply.

[jakevdp]

I looked through the Vega-Lite issues; it looks like chart titles are on their radar: https://github.com/vega/vega-lite/issues/431

[Ricardo-C-Oliveira]

It looks like title was implemented in Vega-Lite, does it means that is also available in Altair?

[jakevdp]

It will be once Altair 2.0 is released. I'm working on that at the moment: https://github.com/altair-viz/altair/pull/374

[deisi]

So is this implemented now?

[afonit]

@deisi , yes, here is an example that uses it:
https://github.com/altair-viz/altair/blob/4c344e79ebf619e762d5d220caab1b7a58996ac5/altair/vegalite/v2/examples/line_percent.py

[deisi]

Ah it's a property. Okay thx.

Am 22. Mai 2018 12:23:31 MESZ schrieb afonit [e-mail]:

@deisi , yes, here is an example that uses it:
https://github.com/altair-viz/altair/blob/4c344e79ebf619e762d5d220caab1b7a58996ac5/altair/vegalite/v2/examples/line_percent.py

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