Explain type of classification of data

Classification of data The method of arranging data into homogeneous classes according to some common features present in the data is called classification. (1) Geographical Classification: When data are classified with reference to geographical locations such as countries, states, cities, districts, etc. it is known as Geographical Classification. It is also known as ‘Spatial Classification'. (2) Chronological Classification: When data are grouped according to time, such a classification is known as a Chronological Classification. In such a classification, data are classified either in ascending or in descending order with reference to time such as years, quarters, months, weeks, etc. It is also called ‘Temporal Classification’. (3) Qualitative Classification: Under this classification, data are classified on the basis of some attributes or qualities like honesty, beauty, intelligence, literacy, marital status etc. For example, Population can be divided on the basis of marital status as married or unmarried etc. (4) Quantitative Classification: This type of classification is made on the basis some measurable characteristics like height, weight, age, income, marks of students, etc.