Data Viz with Echarts4r

By David Munoz Tord

Goal: Learn about data visualization and familiarize yourself with some of the basic functions of the {echarts4r}.

{echarts4r} is back! And with version 4.5 the new features from version 5 of echarts.js are available now. Moreover, the morphing capabilities of echart.js have been ported to echarts4r as we will show in this post.

Read more about it

You can morph between plot like this:


library(echarts4r)

mtcars2 <- mtcars |> 
  head() |> 
  tibble::rownames_to_column("model")

e1 <- mtcars2 |> 
  e_charts(model) |> 
  e_bar(
    carb, 
    universalTransition = TRUE,
    animationDurationUpdate = 1000L
  )

e2 <- mtcars2 |> 
  e_charts(model) |> 
  e_pie(
    carb, 
    universalTransition = TRUE,
    animationDurationUpdate = 1000L
  )

cb <- "() => {
  let x = 0;
  setInterval(() => {
    x++
    chart.setOption(opts[x % 2], true);
  }, 3000);
}"


e_morph(e1, e2, callback = cb)
## Warning in e_morph(e1, e2, callback = cb): This is experimental

Figure 1: Morph between graphs.