- A rectangle is proportionately divided to represent different sub-factors of any data. it is drawn on the basis of given statistical values. Generally data is in the form of percentage.
- If they are not in the percentage form, they should be converted into percentage. The total area of the rectangle is considered as 100% and it is divided according to the percentage of each sub-factor.
- Since each sub unit which is shown in the rectangle has a separate identity, each one can be shaded differently and a legend can be given to understand it easily.
- uses: -It is used for providing information about population, land use pattern, crops, industrial output etc.