contex

palette = ["fff", "eee", "ff9838", "fdae53", "ddd", "fff"]
  series_cols = ["b0", "b1", "b2", "b3", "b4"]
  data = [
    %{
      "b0" => 10.4333,
      "b1" => 1.4834000000000014,
      "b2" => 2.0332999999999988,
      "b3" => 16.7833,
      "b4" => 265.40000000000003,
      "lbl" => "2023-03-09"
    },
    %{
      "b0" => 9.8667,
      "b1" => 1.5665999999999993,
      "b2" => 4.58340000000000,
      "b3" => 83.0333,
      "b4" => 359.15,
      "lbl" => "2023-03-08"
    },
    %{
      "b0" => 7.8333,
      "b1" => 2.9166999999999996,
      "b2" => 1.4666999999999994,
      "b3" => 9.600000000000001,
      "b4" => 379.2833,
      "lbl" => "2023-03-07"
    }
  ]
  test_data = Dataset.new(data, ["lbl" | series_cols])
  
  options = [
    mapping: %{category_col: "lbl", value_cols: series_cols},
    type: :stacked,
    data_labels: true,
    orientation: :horizontal,
    custom_value_scale:
      ContinuousLogScale.new(
        domain: {0, 1000},
        log_base: :base_10,
        negative_numbers: :mask,
        linear_range: 1
      ),
    colour_palette: palette
  ]
  
  Plot.new(test_data, BarChart, 500, 400, options)
  |> Plot.titles("Stacked bars", "Log axis")
  |> Plot.axis_labels("", "")