This chart type is very similar to the line column chart, but it adds a layer of depth by dividing its columns with an attribute shown in the legend. The line stacked column chart effectively combines stacked column and line charts into one visualization.
This visualization uses two y-axes, one for each distinct measure, allowing you to track overall trends while seeing a breakdown of categories.
If you need both measures to share the same scale, you can enable a shared y-axis. Simply select the dropdown menu icon next to the y-axis label and select Group for both measures.
