Smooth area
Smooth area visualizations are like line visualizations, but the areas below the lines are filled with colors or patterns. Use a smooth area visualization to show trends over time.
Smooth area visualizations are useful for comparing proportional contributions within a category. They plot the relative value that each data series contributes to the total.
For an effective smooth area visualization, use a time column in the x-axis, such as years, quarters, months, or days. If the x-axis shows something else, such as Canada, Netherlands, UK, and US, use a bar or column visualization.
For example, this smooth area visualization shows the trend in revenue costs by product type over the years.