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I have a data set for R where everything is pretty good, except what I need to be 0 to do calculations is 100 in my data set. How do I change all of the 100s in my data set to zero? Which functions do I use? I need to replace all of the 100 values in the “Grades” column with 0.

I tried to use mutate and case-when, and I just got error messages.

JetsFan2023
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1 Answers1

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In dplyr, we can use case_match or replace

df %>%
    mutate(grades = case_match(grades, 100 ~ 0, .default = grades))

df %>%
    mutate(grades = replace(grades, grades == 100, 0))
GuedesBF
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