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In R the pie chart is created using the pie () function which takes positive numbers as a vector input. The additional parameters are used to control labels, colour, title etc. R Programming language has numerous libraries to create charts and graphs. A pie-chart is a representation of values as slices of a circle with different colours. The slices are labelled and the numbers corresponding to each slice is also represented in the chart. A bar graph of a qualitative data sample consists of vertical parallel bars that shows the frequency distribution graphically. Course Length: 28:23 Source: Simplilearn

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