Country Code
In Data Science, a country code is a numerical or alphabetical code assigned to each country and used to represent that country in various data processing systems. Country codes are commonly used in data analysis and machine learning applications to group and compare data by country. The most commonly used country code system is the ISO 3166 standard, which assigns a unique two-letter code to each country. Other country code systems include the United Nations Statistics Division (UNSD) M49 standard, which assigns a three-digit code to each country, and the International Olympic Committee (IOC) code, which assigns a three-letter code to each country.
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