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user 51771
R is a free, open-source programming language and software environment for statistical computing, bioinformatics, and graphics.
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How to make smaller categories with factor character variables
While you are trying this in R, I have a solution in Pyhton. … You could use a similar logic in R:
# Say this is your list:
countries = ['IN', 'DE', 'US', 'UK']
# Create a list of countries in different continents like this:
asia = ['IN', 'NP']
america = ['US', …
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