Altair: How to set a multiline title for an axis or legend?

[fredthedead]

Passing a string with '\n' in it doesn't seem to work

[jakevdp]

I don't believe this is allowed currently in Vega-Lite.

[kanitw]

Yep. This is currently not supported in Vega-Lite due to lack of support for this Vega.
But there is a feature request in Vega. https://github.com/vega/vega/issues/488.

[ellisonbg]

Closing as vega-lite-related.

[firasm]

Sorry to comment on a closed issue, but could someone clarify how vega-lite-related issues work? I understand it needs to be implemented in Vega-lite first, but will it "automatically" work if it's implemented there or is there a delay while Altair features catch up ? It seems there isn't much hope of waiting for it to be implemented in Vega-lite...issue 488 seems pretty inactive.

This functionality is pretty essential (in my opinion) and I'm trying to figure out whether a PR to "hack this functionality" in Altair would be supported (assuming I can figure out how to do it).

[jakevdp]

"vega-lite related" generally means there is no change you could make to the Altair codebase that would address the issue.

[firasm]

ah okay. thanks then

[nbmorgan]

Can we reopen this? Looks like vega-lite will support this but requres passing a string array instead of a string.

[cjbraun]

For anyone revisiting this, Vega now supports this multiline functionality. Just pass in a list of strings as the title:

axis=alt.Axis(title=['Text on the first line', 'and text on the second line'])