How to construct a pie chart
This is a circle divided into sectors whose angles are proportional to the frequencies of the items. They are represented in degrees or percentages. The whole circle is 360 and it is measured by the use of protractor. It is referred to as pie
SIMILAR CHARTS RELATED TO PIE CHART
1. DOUGHNUT CHART
A doughnutut chart (also spelled donut) is a variant of the pie chart, with a blank center allowing for additional information about the data as a whole to be included. Doughnut charts are similar to pie charts in that their aim is to illustrate proportions. This type of circular graph can support multiple statistics at once and it provides a better data intensity ratio to standard pie charts. It does not have to contain information in the center.
2. EXPLODED PIE CHART
This is a chart with one or more sectors separated from the rest of the disk is known as an exploded pie chart. This effect is used to either highlight a sector, or to highlight smaller segments of the chart with small proportions.
3. 3D PIE CHART AND PERSPECTIVE PIE CAKE
A 3d pie chart, or perspective pie chart, is used to give the chart a 3D look. Often used for aesthetic reasons, the third dimension does not improve the reading of the data; on the contrary, these plots are difficult to interpret because of the distorted effect of perspective associated with the third dimension. The use of superfluous dimensions not used to display the data of interest is discouraged for charts in general, not only for pie charts.
- Collect and categorize the information into meaningful data.
- From the data collected, calculate the total.
- Divide the categories according to the heads.
- Convert those numbers to percentages.
- The last step is to convert the percentages to degrees.
- In a business, it is used to compare the growth areas such as business profits, turnover, exposure, etc.
- It is also used to represent categorical data.
- Pie charts are basically used for comparing data.
- In schools, pie charts may be used to show how much time is allotted for each section.
- Used to measure the relative size of data such as type of house people have, type of 2 wheelers or 4 wheelers people own.
- The number of customers arriving in the retail market on weekends.
- Types of food and beverages liked by people in a restaurant.
- Representation of mobile brands in the market.
- Comparison of sales of different brands.
- The data is simple and in an easy to understand form.
- Data is represented visually
- To add on a few points, we can manipulate pieces of data in the form of sectors in a pie chart.
- No underlying numbers are required to read the data, as all information is presented in a pie chart.
- It provides a data comparison at a glance. The immediate analysis is possible by just looking at the pictorial presentation of Pie chart.
- It is also considered the best communication tool even to the unaware or uninformed readers.
- It becomes less effective when too many pieces of information are to be displayed in a pie chart.
- When adding on too many pieces of information or making separate labels for each information creates clutter. It is often hard to read those data.
- The pie chart only represents one set of information.
- To compare multiple sets, a series of data is required.
- It makes it difficult for readers when a quick analysis is needed.