Pie
chart
A pie chart shows
values as sectors of the total circle. It shows sectors as coloured
areas of the total pie to represent each value. In the created chart,
you can click and drag any sector to separate that sector from the
remaining pie or to join it back.
It is a special
graph which shows the relative size of the data by the pie slices.
Pie charts are excellent when you need to compare proportions. They
work best with smaller numbers of values, about half a dozen; more
than this and the visual impact begins to fade.
For example:
Consider the data on
expenditures on various items for the total income. Each expense is
represented in percentage out of the total income, which helps in
understanding the data in relation to the whole.
Plotting pie
chart
-
Select the data given in the spreadsheet
-
Open the chart wizard (Recall the steps given in the previous handouts)
-
Select the chart type ‘Pie’ and click finish
-
Pie chart gets displayed in the spreadsheet
It can also be
visualised as 3D output by checking 3D options. And the output will
be as follows
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