Area Chart with Missing Data

Shows the cumulative change in a variable over time, while also handling missing data points. This provides a clear visualization of the overall trend and the contribution of each period to the cumulative value. It is useful for understanding the growth or decline of a quantity over time, such as website traffic or sales revenue.

Chart:

Code:

  muze
    .canvas()
    .columns(["Maker"])
    .rows(["Miles_per_Gallon"])
    .layers([
      {
        mark: "area",
        encoding: {
          color: {
            value: () => "#8DD3C7",
          },
        },
      },
    ])