The original data is the data in the user database, or all kinds of data stored and used by the end user. It is unprocessed or simplified data, which may or may not be in machine-readable form. It constitutes the data of the existence of matter. There are many kinds of raw data, such as text data, image data, audio data or a mixture of several kinds of data.
In database: Raw data, also called user data, is unprocessed or simplified data, which may or may not be in machine-readable form. It constitutes the data of the existence of matter. Usually, there are several basic data types in a database.
Here are some suggestions for using raw data:
1, data processing: the original data usually needs pretreatment and cleaning before use. Analysts should first carefully check the data, identify, mark and correct abnormal data to ensure the accuracy and integrity of the data.
2. Data analysis: Analysts need to use charts, statistics, models and other methods to analyze the original data and find the laws and trends.
3. Sample size: In big data analysis, the sample size is large and complex. Therefore, people need to use random technology to extract a small sample from a predefined large sample for analysis, so as to get the overall law.
4. Privacy protection: We must abide by laws and regulations, protect the privacy and data security of the respondents, and do not disclose sensitive information.
5. Data visualization: Transforming the original data into charts, reports and visualization forms can not only make the data more expressive, but also facilitate people to understand and copy the data analysis results.
6. Data sharing: Through online or offline data sharing, more people can share data resources, help people better understand information and further support business decisions.