EDUCATION
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Used to represent categorical data.
Created using the factor() function.
# Creating a factor
gender <- c("Male", "Female", "Male", "Female", "Male")
gender_factor <- factor(gender)
levels(gender_factor)You can also specify the levels of the factor explicitly
# Creating a factor with specified levels
education <- c("High School", "Bachelor's", "Master's", "PhD", "Bachelor's")
education_factor <- factor(education, levels = c("High School", "Bachelor's", "Master's", "PhD"))
levels(education_factor)We can access the factors with index number inside a [] bracket.
Using length() function we can find the length of a factor
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