Combined charts (also known as composite charts) are the combination of two different types of charts in a single plot area, for instance, a bar and a line chart laid in a single plot. Combined charts are best used to compare the different data sets that are related to each other such as actual and target values, total revenue and profit, temperature and precipitation, etc. Note that these charts may require multiple axes to cater different scales for different values.
Combined charts can be a combination of any of the following charts:
The default combination is of a Column and a Line chart. The chart has columns on the primary axis and the line on a secondary axis which is great if the ranges are vastly different.