Vega like ggplot (which this is very close to) build on the grammar of graphics but differ in the targets they support (Vega is using web technologies), languag

Vega like ggplot (which this is very close to) build on the grammar of graphics but differ in the targets they support (Vega is using web technologies), language design details (e.g., Vega and ggplot use different terminology for the graphical elements and the encodings), and supported features (Vega has a reactive dataflow and support for building custom interactions). There is a lot more to be said but that’s a start for how they compare.