Victory Charts from R with reactR

assembled with blockbuilder.org

Combine React with R

The new package reactR provides convenience functions for using react in R. Here is a quick example with VictoryChart built from R. Thanks so much to Formidable Labs for the very fine product with great documentation.

Much Left To Do

As you can probably tell in the code below, there is much more left to do. Please help by contributing code, examples, ideas. Thanks! As an example, this would be much better if wrapped as an htmlwidget.

Code In R

library(htmltools)
library(reactR)
library(pipeR)

# FormidableLabs has been working hard on Victory-Chart
#  let's try to use it with reactR

# not necessary to make an htmlDependency but more robust if we do
victory <- htmlDependency(
  name = "victory",
  version = "0.13.3",
  src = c(href = "https://unpkg.com/victory/dist"),
  script = "victory.js"
)

victory_core <- htmlDependency(
  name = "victory-core",
  version = "9.1.1",
  src = c(href = "https://unpkg.com/victory-core@9.1.1/dist"),
  script = "victory-core.js"
)

victory_chart <- htmlDependency(
  name = "victory-chart",
  version = "13.1.1",
  src = c(href = "https://unpkg.com/victory-chart@13.1.1/dist"),
  script = "victory-chart.js"
)

demo_script <- HTML(
'
const data = [
  {quarter: 1, earnings: 13000},
  {quarter: 2, earnings: 16500},
  {quarter: 3, earnings: 14250},
  {quarter: 4, earnings: 19000}
];


// need to change example using VictoryChart namespace
//   so we will add VictoryChart. to all the components
class App extends React.Component {
  render() {
    return (
      <VictoryChart.VictoryChart
        // adding the material theme provided with Victory
        theme={VictoryCore.VictoryTheme.material}
        domainPadding={20}
      >
        <VictoryCore.VictoryLabel
          y = "20"
          text = "Victory from R"
          style = {{"font-size" : "150%"}}
        />
        <VictoryChart.VictoryAxis
          tickValues={["Quarter 1", "Quarter 2", "Quarter 3", "Quarter 4"]}
        />
        <VictoryChart.VictoryAxis
          dependentAxis
          tickFormat={(x) => (`$${x / 1000}k`)}
        />
        <VictoryChart.VictoryBar
          data={data}
          x={"quarter"}
          y={"earnings"}
        />
      </VictoryChart.VictoryChart>
    )
  }
}

const app = document.getElementById("app");
ReactDOM.render(<App />, app);
'
)

tagList(
  tags$div(id = "app"),
  tags$script(
    HTML(
      babel_transform(demo_script)
    )
  )
) %>>%
  attachDependencies(
    list(
      html_dependency_react(),
      victory_core,
      victory_chart
    )
  ) %>>%
  browsable()