What does a data analyst do?

1, business

The premise of the data analysis work will need to understand the business, that is, familiar with the industry knowledge, the company's business and processes, it is best to have their own unique insights, if detached from the industry knowledge and the company's business background, the results of the analysis will only be out of the line of the kite, there is not much use value.

2, management

On the one hand, to build the data analysis framework requirements, such as determining the analysis of ideas need to be used to guide the marketing, management and other theoretical knowledge, if you are not familiar with the theory of management, it is very difficult to build the framework of data analysis, the subsequent analysis of data is also very difficult to carry out. On the other hand, the role of the data analysis conclusions for the data analysis to put forward a guiding analysis of the recommendations.

3, analysis

refers to the mastery of the basic principles of data analysis and some effective data analysis methods, and can be flexibly applied to practical work in order to effectively carry out data analysis. Basic analysis methods are: comparative analysis, group analysis, cross analysis, structural analysis, funnel plot analysis, comprehensive evaluation analysis, factor analysis, matrix correlation analysis. Advanced analysis methods include: correlation analysis, regression analysis, cluster analysis, discriminant analysis, principal component analysis, factor analysis, correspondence analysis, time series and so on.

4, the use of tools

refers to the mastery of data analysis related to common tools. Data analysis method is the theory, and data analysis tools is to realize the theory of data analysis method tools, in the face of more and more huge data, we can not rely on the calculator to analyze, we must rely on powerful data analysis tools to help us complete the data analysis work.

5, design

Know that the design refers to the use of charts and graphs to effectively express the analytical views of data analysts, so that the results of the analysis at a glance. Chart design is a university question, such as the choice of graphics, layout design, color matching, etc., all need to master certain design principles.

Expanded:

Data Analyst? It is a kind of data teacher Datician, refers to different industries, specializing in industry data collection, organization, analysis, and based on the data to make industry research, evaluation and forecasting professionals.

This is an era of speaking with data, and an era of relying on data to compete. At present, more than 90% of the world's top 500 companies have established data analysis departments. well-known companies such as IBM, Microsoft, Google, etc. are actively investing in data business, establishing data departments and training data analysis teams. Governments and more and more enterprises realize that data and information have become the intellectual assets and resources of enterprises, and the ability to analyze and process data is becoming an increasingly relied upon technical means.

Baidu Encyclopedia-Data Analyst