Mosquito: Let's talk about data analysis.

Data analysis can be divided into generalized data analysis and narrow data analysis. Generalized data analysis includes narrow data analysis and data mining, and we often say that data analysis refers to narrow data analysis.

Simply put, data analysis is to analyze data. Professionally speaking, data analysis refers to processing and analyzing the collected data, extracting valuable information and giving full play to the role of data by using appropriate statistical analysis methods and tools according to the analysis purpose.

It mainly realizes three functions: status analysis, cause analysis and prediction analysis (quantitative). The purpose of data analysis is very clear, first make assumptions, and then verify whether the assumptions are correct through data analysis, so as to draw corresponding conclusions.

It mainly adopts common analysis methods such as comparative analysis, grouping analysis, cross analysis and regression analysis.

Generally speaking, data analysis is to get the statistical results of an indicator, such as sum and average. These index data need to be interpreted in combination with business, so as to give full play to the value and role of data.