How can I remove duplicates from a vector in R?
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How can I remove duplicates from a vector in R?
You can use the unique() function to remove duplicates from a vector. For example, unique(c(1, 2, 2, 3)) will return c(1, 2, 3).
What if I have a data frame and want to remove duplicate rows?
You can use the distinct() function from the dplyr package. For example, df %>% distinct() will return a data frame with duplicate rows removed.
Is there a way to keep the first occurrence of duplicates?
Yes, using duplicated() in combination with subsetting can help. For example, df[!duplicated(df), ] keeps the first occurrence.
Can I remove duplicates based on specific columns?
Absolutely! You can specify columns in the distinct() function like this: df %>% distinct(column1, column2).
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