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Due to the obscurity and lack of practicality of Playfair’s idea, she was later considered to have produced it.

As a result, the graph resembled a cock’s comb. Indeed, Nightingale rearranged the pie chart such that the length of the wedges could be varied rather than their width. Pie charts, according to Playfair, needed a third dimension to give more information.Īlthough Florence Nightingale did not originate the pie chart, she improved it to make it more readable, which led to its widespread use, which continues to this day. At first, this invention was not widely employed.

Before 1789, one of the charts illustrated the proportions of the Turkish Empire in Asia, Europe, and Africa. Playfair displayed a diagram that included a succession of pie charts. William Playfair’s Statistical Breviary of 1801, which contains two such graphs, is widely regarded as the first known pie chart. In most circumstances, other plots such as the bar chart, box plot, dot plot, and so on can be used instead of pie charts. However, they have been criticised, and many experts advise against using them because research has shown that comparing different areas of a pie chart or data across different pie charts is difficult. In the corporate world and the media, pie charts are commonly used.

William Playfair’s Statistical Breviary of 1801 is credited with creating the first documented pie chart. While it gets its name from its similarity to a sliced pie, there are other ways to serve it. Each slice’s arc length in a pie chart is proportionate to the amount it depicts. A pie chart is a spherical statistical visual that is split into slices to depict numerical proportion. How to make Pie Chart with an Example for Excel process is described here. How to make a pie chart in excel? Answer is here.