The six steps of data analysis

1. Analysis design

The first is to clarify the purpose of data analysis , Only a clear purpose , Data analysis will not deviate from the direction , Otherwise, the data analysis results obtained are not only of no guiding significance , That is, goal guidance

2. data collection

Data collection is based on a defined data analysis framework , The process of collecting relevant data , It provides material and basis for data analysis .

3. Data processing

Data processing refers to processing and sorting the collected data , Form a style suitable for data analysis , Ensure the consistency and effectiveness of data . It's an essential stage before data analysis .
The basic purpose of data processing is to extract from a large number of 、 May be messy 、 Extracting and deriving from incomprehensible data is valuable for solving problems 、 Meaningful data . If the data itself has errors , Then even if the most advanced data analysis methods are adopted , The result is also wrong , It has no reference value , Even misleading decisions .
Data processing mainly includes data cleaning 、 Data transformation 、 Data extraction 、 Data merging 、 Data calculation and other processing methods . General data need to be processed to be used for subsequent data analysis , Even if “ clean ” The original data also needs to be processed before it can be used .

4. Data analysis

Data analysis refers to the use of appropriate analytical methods and tools , Analyze the collected data , Extract valuable information , The process of forming valid conclusions .

At the stage of determining the thinking of data analysis , The data analyst should determine the appropriate data analysis method for the content to be analyzed . At this stage , Can control data , Calmly analyzed and studied .

5. Data presentation

Talk with a chart .

Common data charts include pie charts 、 Bar charts 、 Bar chart 、 Broken line diagram 、 Scatter plot 、 Radar chart, etc , Of course, these charts can be further processed , Make it into the graphics we need , For example, the pyramid 、 Matrix diagram 、 Waterfall Plot 、 Funnel diagram 、 Pareto et al .

6. Report writing

Data analysis report is actually a summary and presentation of the whole data analysis process . Through the report , Analyze the cause of the data 、 The process 、 The results and recommendations are presented in full , For the reference of decision makers . Therefore, the data analysis report is to evaluate the quality of enterprise operation through all-round scientific analysis of data , Science for decision makers 、 Rigorous decision-making basis , In order to reduce the risk of enterprise operation , Improve the core competitiveness of enterprises .

A good analysis report , First of all, there needs to be a good analytical framework , And the level is clear , illustrated , Can let the reader at a glance . The structure is clear 、 Clear priorities can make the reading object correctly understand the content of the report ; illustrated , It can make the data more lively , Improve visual impact , Help readers to be more vivid 、 Look at the problems and conclusions intuitively , And that leads to thinking .

secondly , There needs to be a clear conclusion , An analysis without a definite conclusion is not an analysis , At the same time, it lost the significance of the report , Because at first, the analysis was carried out to find or prove a conclusion , So don't give up the essentials and seek the end .

Third , There must be suggestions or solutions , As a decision maker , It's not just about finding problems , More importantly, suggestions or solutions , So that they can refer to when making decisions . therefore , Data analysts not only need to master data analysis methods , And to know and be familiar with the business , In this way, according to the business problems found , Put forward feasible suggestions or solutions .

Reference resources ： The basic steps of data analysis

Common ideas of data analysis

Data analysis is often used 6 Analysis ideas

Data analysis and its steps