Allow multiple data fields The feature is documented in https://github.com/vega/vega/wiki/Scales#scale-domains-drawn-from-multiple-fields-or-data-sets
Allow multiple data fields
The feature is documented in https://github.com/vega/vega/wiki/Scales#scale-domains-drawn-from-multiple-fields-or-data-sets
seyfert/vega,vega/vega,timelyportfolio/vega,nyurik/vega,lgrammel/vega,vega/vega,nyurik/vega,uwdata/vega,seyfert/vega,nyurik/vega,vega/vega,timelyportfolio/vega,seyfert/vega,uwdata/vega,vega/vega