Get or Set Levels of a Factor in R Programming – levels() Function Last Updated : 16 Jun, 2020 Improve Improve Like Article Like Save Share Report levels() function in R Language is used to get or set the levels of a factor. Syntax: levels(x) Parameters: x: Factor Object Example 1: # R program to get levels of a factor # Creating a factor gender <- factor(c("female", "male", "male", "female")); gender # Calling levels() function # to get the levels levels(gender) Output: [1] female male male female Levels: female male [1] "female" "male" Example 2: # R program to set levels of a factor # Creating a factor gender <- factor(c("female", "male", "male", "female")); gender # Calling levels() function # to set the levels levels(gender) <- c("abc", "def") gender Output: [1] female male male female Levels: female male [1] abc def def abc Levels: abc def Like Article Suggest improvement Previous R Programming Exercises, Practice Questions and Solutions Next Make Elements of a Vector Unique in R Programming - make.unique() Function Share your thoughts in the comments Add Your Comment Please Login to comment...