Asymmetric Error Bars

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

Section

arrayminus: sets the downward (or leftward) error values independently from array: (upward/rightward). Without arrayminus, both directions use array: symmetrically.

alias Plotly.{Figure, Scatter}

Figure.new()
|> Figure.add_trace(
  Scatter.new(
    x: [1, 2, 3, 4],
    y: [2, 1, 3, 4],
    mode: "markers",
    error_y: %{
      type: "data",
      array: [0.1, 0.2, 0.3, 0.4],
      arrayminus: [0.4, 0.3, 0.2, 0.1],
      visible: true
    }
  )
)
|> Figure.update_layout(title: "Asymmetric Error Bars")
|> Plotly.show()