R & Python
Although software like Excel and BI tools have been designed with the utmost effort to consider the most application scenarios of data analysis, they are essentially customized. If the software doesn’t design a feature, or develop a button for a feature, chances are that you won’t be able to complete your work with them.
The programming language is different for this. It is very powerful and flexible. You can write code to do anything you want. For example, R and Python are the indispensable tools for data scientists. From a professional perspective, they are definitely powerful than Excel and BI tools.
So what are the application scenarios that R and Python can realize, while it is difficult for Excel and BI tools to achieve?
1) Professional statistical analysis
In terms of R language, it is best at statistical analysis, such as normal distribution, using algorithm to classify clusters, and regression analysis. This kind of analysis is like using data as an experiment. It can help us answer the following questions.
For example, the distribution of data is a normal distribution, a triangular distribution or other types of distribution? What is the discrete situation? Is it within the statistical controllable range we want to achieve? What is the magnitude of the effect of different parameters on the results? And there is also hypothetical simulation analysis. If a certain parameter changes, how much impact will it bring?
2) Individual predictive analysis
For example, we want to predict the behavior of a consumer. How long will he stay in our store? How much will he spend? We can find out his personal credit status and make a loan amount based on his online consumption record. Or we can push different items based on his browsing history on the web page. This also involves the current popular concepts of machine learning and artificial intelligence.