Creating Pie of Pie and Bar of Pie charts

Excel 365
Excel pie charts are useful to display fractions of a whole by splitting a circle into sections. Each section looks like a slice of a pie and represents a category. Such a layout makes it easy to observe relationships between parts, but the smaller becomes the slice (less than 10%) – the harder becomes to estimate it visually.
Pie of Pie Chart in Excel 2016

For example, if you have several companies that operate on the market, you can represent a part of every company on the market as a slice.

Pie Chart in Excel 2016

This data contains five slices that fall below 10%.

To make smaller slices more visible in a pie chart, Microsoft Excel provides the Pie of Pie (see above), and Bar of Pie (see below) chart sub-types.

Bar of Pie Chart in Excel 2016

Each of these chart sub-types separates the smaller slices from the main pie chart and displays them in a supplementary pie or stacked bar chart. To create a Pie of Pie or Bar of Pie chart, follow these steps:

   1.    Select the data range (in this example, B5:C14).

   2.    On the Insert tab, in the Charts group, choose the Pie and Doughnut button:

Pie Chart in Excel 2016

Choose Pie of Pie Pie of Pie in Excel 2016 or Bar of Pie Bar of Pie in Excel 2016

Pie of Pie Chart in Excel 2016

   3.    Right-click in the chart area. In the popup menu, select Format Data Series...

Format data series in popup menu Excel 2016

   4.    On the Format Data Series pane, in the Series Options tab, select which data to display in the second pie (in this example, the second pie shows all values less than 10%):

Format Data Series in Excel 2016

There are several ways to choose which categories (slices) to display in the secondary pie or bar chart:

  • Split series by Position (enter the number of positions moved to the secondary chart)
  • Split series by Value (the values less than the specified moved to the secondary chart)
  • Split series by Percentage Value (the values less than the specified percentage moved to the secondary chart)
  • Split series by Custom (drag and drop categories between to charts)

You can then make any other adjustments to get the look you desire:

  • Pie Explosion detaches the slice from the primary chart and moves it closer to the secondary chart
  • Gap Width controls the distance between charts
  • Second Plot Size specifies the relative size of the second chart.

See also this tip in French: Un graphique en Secteurs de secteur ou Barres de secteur.

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