Include Locale Config

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

Section

Set config.locale to a BCP 47 language tag (e.g. "fr", "de", "es") to apply locale-specific number and date formatting. The locale file is loaded dynamically from the Plotly CDN (this is handled automatically by the PlotlyLive widget).

Combined with tickformat, this formats date labels in the selected locale's language (e.g. French month names).

alias Plotly.{Figure, Scatter}

Figure.new()
|> Figure.add_trace(
  Scatter.new(
    x: ["2020-01-01", "2020-02-01", "2020-03-01",
        "2020-04-01", "2020-05-01", "2020-06-01"],
    y: [10, 14, 12, 18, 16, 20],
    mode: "lines+markers"
  )
)
|> Figure.update_layout(
  title: "Locale Config — French Date Formatting",
  xaxis: %{tickformat: "%d %B %Y"}
)
|> Plotly.show(config: %{locale: "fr"})

Note: locale support requires an internet connection in Livebook to load the locale file from the Plotly CDN. See notebook 13 (Change the Default Locale) for more locale options.