Combined chart is a separate type of visualization consisting of layers. Each layer is a separate type of diagram. You can combine line charts, column charts, and area charts.
A combined chart is often used for plan/actual comparison. You can show the plan as a dashed line on the line chart layer, while presenting the actual values broken down into categories on the column chart layer.
Example
Visualization
Source table
Year
Category
Plan
Sales
2018
Household cleaners
435.53
449
2018
Household goods
null
null
2018
Home appliances
null
null
2019
Household cleaners
503,255
512,282
2019
Household goods
1,457,502
1,483,733
2019
Home appliances
2,237,228.4
2,331,805
2020
Household cleaners
1,623,124
1,644,668
2020
Household goods
4,495,448
4,535,567
2020
Home appliances
6,711,462.8
7,046,605
2021
Household cleaners
2,686,134
2,737,436
2021
Household goods
7,794,310
7,836,228
2021
Home appliances
11,329,663.6
11,910,983
2022
Household cleaners
2,512,031
2,652,918
2022
Household goods
7,013,145
7,382,385
2022
Home appliances
11,327,092
11,461,881
It is sometimes convenient to use a combined chart for same-type layers. For example, when one layer represents sales by category and another one shows the plan constant.
Example
You can display additional lines calculated using window functions or LOD functions. For example, to calculate an average by category, use this formula: avg(SUM([Sales] INCLUDE [Category])).
Dimension. You can specify only one field here. This dimension is usually a date. If this is the case, make sure to specify the Date data type for this field in the dataset. This is required for correct sorting and signature display. For better visualization, you can group dates into weeks, months, and years. For more information, see Field settings. The X section is common for all layers.
Layer section
Allows you to add, delete, reorder, and rename layers. You can select a chart type for a layer: line chart, column chart, or area chart. The list of other sections depends on the layer chart type you select.
You can manage data display in the chart layers using the legend. To do this, click individual legend elements or select multiple elements by pressing and holding Ctrl/Cmd. You can enable or disable the legend in the chart settings. For more information, see General settings.