Pie & Doughnut Charts. Sarah O’Sullivan Brendan Lucey Amani Boiffi Fred Valle. Pie Chart. Doughnut (Donut) Chart. EXAMPLE OF A PIE CHART. VARIANTS OF PIE CHARTS. ADVANTAGES OF PIE & DOUGHNUT CHARTS.
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Pie & Doughnut Charts Sarah O’Sullivan Brendan Lucey AmaniBoiffi Fred Valle
ADVANTAGES OF PIE & DOUGHNUT CHARTS • Size of the circle can be made proportional to the total quantity it represents • Summarize a large data set in visual form • It is visually simpler than other types of graphs • Require minimal additional explanation • Easily understood: Widely used in business and the media • Pie charts are also immune to the distortion caused by a change in scale
ADVANTAGES OF PIE AND DOUGHNUT CHARTS (cont.) • The relative proportions of multiple classes of data is easier to see • It is harder to figure out from the bar chart that the red is about half of the total
DISADVANTAGES OF PIE AND DOUGHNUT CHARTS • Not good for scientific and technical measurement • It is used often in the media and business • It best represents 25% to 50% of the data • Height visibility is better then area