Sources of data
For users in the area of data science and business analytics, one important issue is the source of data, or simply where to get data. When working at a company, the obvious source of data is one's own company, such as sales, cost of raw materials, the salary of managers and other employees, the related information of suppliers and clients, estimations of future sales, the cost of raw materials, and so on. It is a good idea to find some data for learning purposes, and this is especially true for full-time students.
Generally speaking, there are two types of data: public and private. Private or proprietary databases are quite expensive. A typical example is the Center for Research in Security Prices (CRSP) database, a financial ...
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