A combined axis chart in Tableau is a type of data visualization that combines multiple measures on the same axis, allowing you to compare their values more effectively. In a combined axis chart, the measures share a common axis, which can make it easier to analyze and understand the relationships between different data points. This chart type is especially useful when you want to compare measures with different scales or units in a single view.


A dual axis chart in Tableau is a type of data visualization that combines two separate axes, allowing you to plot two measures on different scales in a single chart. This can be especially useful when you want to compare two measures that have different units of measurement or magnitudes, as it enables you to display them side by side for a more meaningful analysis.

In a dual axis chart, two separate marks or chart types are displayed on the same visual. Each measure is associated with its own axis, and you can customize the chart type, color, and formatting for each measure independently. This allows you to see the relationships and trends between the two measures more effectively.

Explained in detail in the video.