Grouped Bar Chart with Direct Labels

Mix.install([
  {:plotly_ex, "~> 0.3"},
  {:kino, "~> 0.18"}
])

Section

Combine barmode: "group" with text: and textposition: "auto" to add direct labels to a grouped bar chart.

alias Plotly.{Figure, Bar}

Figure.new()
|> Figure.add_trace(
  Bar.new(
    name: "15-44",
    x: ["China", "France", "Germany", "USA"],
    y: [26000, 18000, 23000, 25000],
    text: [26000, 18000, 23000, 25000],
    textposition: "auto",
    marker: %{color: "rgba(55, 128, 191, 0.7)", line: %{color: "rgba(55, 128, 191, 1.0)", width: 2}}
  )
)
|> Figure.add_trace(
  Bar.new(
    name: "45-65",
    x: ["China", "France", "Germany", "USA"],
    y: [22000, 21000, 21000, 19000],
    text: [22000, 21000, 21000, 19000],
    textposition: "auto",
    marker: %{color: "rgba(219, 64, 82, 0.7)", line: %{color: "rgba(219, 64, 82, 1.0)", width: 2}}
  )
)
|> Figure.update_layout(title: "Grouped Bar Chart with Labels", barmode: "group")
|> Plotly.show()