nonnegative, tozero, and normal Rangemode

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

Section

rangemode controls how the axis auto-scales relative to zero:

• "normal" (default): fits the data range
• "tozero": extends the range to include zero
• "nonnegative": forces the axis to start at zero or above

alias Plotly.{Figure, Scatter}

x = [1, 2, 3, 4, 5]
y = [-5, -2, 1, 4, 7]

Figure.new()
|> Figure.add_trace(Scatter.new(x: x, y: y, mode: "lines+markers", name: "data"))
|> Figure.update_layout(title: "Rangemode: normal (default)", yaxis: %{rangemode: "normal"})
|> Plotly.show()

Figure.new()
|> Figure.add_trace(Scatter.new(x: x, y: y, mode: "lines+markers", name: "data"))
|> Figure.update_layout(title: "Rangemode: tozero", yaxis: %{rangemode: "tozero"})
|> Plotly.show()

Figure.new()
|> Figure.add_trace(Scatter.new(x: x, y: y, mode: "lines+markers", name: "data"))
|> Figure.update_layout(title: "Rangemode: nonnegative", yaxis: %{rangemode: "nonnegative"})
|> Plotly.show()