7.11 Data visualization Pie and Donut A pie chart is divided into slices to illustrate numerical proportion. In a pie chart ,
 the arc length of each slice is proportional
 to the quantity it represents. A donut chartis a variant of the pie chart , with a blank center allowing for additional information about the data as a whole to be included. Donut charts provide a better data intensity ratio to standard pie chart . D onut char t title Subtitle goes here Data set 1 Data set 2 Data set 3 Data set 4 Data set 5 S ource: Aliquam auctor nisi vitae quam tincidunt id auctor lorem fringilla . Pie char t title Subtitle goes here Data set 1 Data set 2 Data set 3 Data set 4 Data set 5 S ource: Aliquam auctor nisi vitae quam tincidunt id auctor lorem fringilla .
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