Explore and explain patterns in quantitative data using D3, Vega, and Observable Plot

Observable

Visualization

D3 Charts

Gallery

What would be the easiest way of altering   

const bar = svg.append("g")
      .attr("fill", color)

to highlight a specific set of bars by changing the color ie. Vowels?

Hi, I'm not sure if this matters, but the plot code above does not reproduce the chart on the top. Here is the improved snippet

Plot.barY(alphabet, {
  x: "letter",
  y: "frequency",
  sort: { x: "y", reverse: true }
}).plot({ y: { tickFormat: "%" } })

Radamés Ajna

True! Thanks for posting a more complete reproduction.