Pie charts are often criticised. Comparing the size of pie segments can be difficult, and many visualisation experts suggest that bar-charts should be used instead.
Benefits & pitfalls: spider (radar) chart
Where spider (radar) charts are used to represent time series data, the time series needs to show cyclical data. For example data on crime offences by hour of day could be usefully represented on a spider chart, similarly disease levels by month of the year.
How to create your own
Create your own: pie chart
Pie charts can be created in a range of standard data applications such as Excel.
Create your own: spider (radar) chart
Spider (radar) charts can be created in a range of standard data applications such as Excel.
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