Indicator data types, connotations and characteristics
| Division standard | Data types | Connotation | Features |
|---|---|---|---|
| Measurement scale | Categorical data | According to the classification or grouping of certain attributes of objective phenomena, data reflecting the type of things | There is a juxtaposed relationship between each category, and there is no need to distinguish the pros and cons or the size, and the order can be changed arbitrarily; for example, according to the nature of the economy, enterprises are divided into state-owned, collective, private and other economies |
| Sequential data | Non-numeric data measured for the level difference or order difference between objective objects | The categories are ordered and can be represented by numerical codes; for example, the test scores can be divided into excellent, good, medium, pass and fail | |
| Numeric data | The observed value of the objective object measured according to the digital scale, which is expressed as a specific value | Indicates the quantitative characteristics of the objective object; for example, income 1000 yuan, age 20 years, weight 50 kg, etc. | |
| The relationship between objective subject and time | Section data | Observation data of the same indicator of multiple objective objects at the same time point | Obtained in different spaces to describe the changes of objective objects at a certain moment |
| Time series data | Observation data of an indicator of an objective object at different time points | Acquired in chronological order, describing how an objective phenomenon changes over time | |
| Panel data | Sample data composed of multiple cross-sectional sample observations on a time series | Also called “parallel data” or Panel Data, it is an m*n data matrix, which records a certain indicator data of m objects on n time nodes | |
| Collection method | Statistical data | Data on the characteristics, scale, structure, level and other indicators of natural elements in a certain area | Using a certain measurement scale to measure the results of things, different measurement scales get different types of statistical data |
| Survey data | Indicator data collected through surveys or observations without external interference | Statistical indicator data about socio-economic phenomena are basically survey observation data | |
| Experimental data | Metric data collected from control subjects | Much of the data in the natural sciences come from experimental data | |
| Data structure | Structured data | Data with rigorous logical and physical structure stored in the database | It is expressed as a two-dimensional structure, the data is in row units, and the attributes of each row of data are the same |
| Semi-structured data | Data with multiple types of textual, irregular, incomplete or implicit structures | Entities belonging to the same class can have different properties; for example, storing employee resumes | |
| Unstructured data | It can only be stored in the form of various types of files, and the structure is not fixed | Generally stored in binary data format; for example, various documents, pictures, videos, etc. |
| Division standard | Data types | Connotation | Features |
|---|---|---|---|
| Measurement scale | Categorical data | According to the classification or grouping of certain attributes of objective phenomena, data reflecting the type of things | There is a juxtaposed relationship between each category, and there is no need to distinguish the pros and cons or the size, and the order can be changed arbitrarily; for example, according to the nature of the economy, enterprises are divided into state-owned, collective, private and other economies |
| Sequential data | Non-numeric data measured for the level difference or order difference between objective objects | The categories are ordered and can be represented by numerical codes; for example, the test scores can be divided into excellent, good, medium, pass and fail | |
| Numeric data | The observed value of the objective object measured according to the digital scale, which is expressed as a specific value | Indicates the quantitative characteristics of the objective object; for example, income 1000 yuan, age 20 years, weight 50 kg, etc. | |
| The relationship between objective subject and time | Section data | Observation data of the same indicator of multiple objective objects at the same time point | Obtained in different spaces to describe the changes of objective objects at a certain moment |
| Time series data | Observation data of an indicator of an objective object at different time points | Acquired in chronological order, describing how an objective phenomenon changes over time | |
| Panel data | Sample data composed of multiple cross-sectional sample observations on a time series | Also called “parallel data” or Panel Data, it is an m*n data matrix, which records a certain indicator data of m objects on n time nodes | |
| Collection method | Statistical data | Data on the characteristics, scale, structure, level and other indicators of natural elements in a certain area | Using a certain measurement scale to measure the results of things, different measurement scales get different types of statistical data |
| Survey data | Indicator data collected through surveys or observations without external interference | Statistical indicator data about socio-economic phenomena are basically survey observation data | |
| Experimental data | Metric data collected from control subjects | Much of the data in the natural sciences come from experimental data | |
| Data structure | Structured data | Data with rigorous logical and physical structure stored in the database | It is expressed as a two-dimensional structure, the data is in row units, and the attributes of each row of data are the same |
| Semi-structured data | Data with multiple types of textual, irregular, incomplete or implicit structures | Entities belonging to the same class can have different properties; for example, storing employee resumes | |
| Unstructured data | It can only be stored in the form of various types of files, and the structure is not fixed | Generally stored in binary data format; for example, various documents, pictures, videos, etc. |