is it possible to make a polar chart using altair? I need to replay Florence Nightingale’s using altair, I didn't find any example talking about polar charts using altair.

is it possible to make a polar chart using altair? I need to replay Florence Nightingale’s using altair, I didn't find any example talking about polar charts using altair.

No, the current Altair release (version 4.1) does not support polar plots. Recent releases of Vega-Lite added support for this(see vega-lite Arc examples), so future versions of Altair may eventually support this.