Chartist Bar Animation

Chartist.js for R, powered by htmlwidgets. Github repo is here: https://github.com/yutannihilation/chartist

Sample data:

library(chartist)

set.seed(324)
data <- data.frame(
  day = paste0("day", 1:20),
  A   = runif(10, 0, 20),
  B   = runif(10, 0, 20),
  C   = runif(10, 0, 20),
  D   = runif(10, 0, 20),
  E   = runif(10, 0, 20),
  stringsAsFactors = FALSE
)

Now you can add animations for bar!

chartist(data, day) +
    Bar(stackBars = TRUE) +
    SVG_animate(target = "bar", offset = -1000, style = "y1", delay = 10) +
    SVG_animate(target = "bar", offset = -1000, style = "y2", delay = 10)

But the Bar animation feature still needs to be improved; for example, it seems very odd when you specify only y1…

chartist(data, day) +
    Bar(stackBars = TRUE) +
    SVG_animate(target = "bar", offset = -50, style = "y1", delay = 10)