inst/shiny-demo/data-set-gapminder/readme.md

In vegawidget/vegawidget: 'Htmlwidget' for 'Vega' and 'Vega-Lite'

This example shows how we can design a chart using Vega-Lite, then use Shiny to run that chart using a dataset that can be updated.

In the server function, we use vw_shiny_set_data() to observe the reactive expression rct_data_year(), updating the dataset, then re-running the Vega-Lite chart, whenever rct_data_year() changes.

To do this, we had to name the dataset in the Vega-Lite specification; you will see in the definition of spec that the dataset is named "source". We use this as the name argument for vw_shiny_set_data().

vegawidget/vegawidget documentation built on Jan. 27, 2024, 10:48 a.m.