Bar Chart with Hover Text

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

Section

Pass a text list to a Bar trace to supply custom hover text per bar. Use xaxis.tickangle to rotate x-axis tick labels (negative = clockwise).

alias Plotly.{Figure, Bar}

Figure.new()
|> Figure.add_trace(
  Bar.new(
    x: ["Product A", "Product B", "Product C", "Product D"],
    y: [20, 14, 23, 18],
    text: ["20 units", "14 units", "23 units", "18 units"],
    marker: %{color: "rgb(158, 202, 225)", opacity: 0.6,
              line: %{color: "rgb(8, 48, 107)", width: 1.5}}
  )
)
|> Figure.update_layout(
  title: "Bar Chart with Custom Hover Text",
  xaxis: %{tickangle: -45}
)
|> Plotly.show()