dup.data.frame | R Documentation |
Shows records with duplicate or duplicated values of grouping variables.
## S3 method for class 'data.frame'
dup(x, ...)
x |
data.frame |
... |
optional grouping columns (named arguments are ignored) |
data.frame
Other dup:
dup()
library(dplyr)
dupGroups(mtcars)
dupGroups(group_by(mtcars, mpg))
dup(group_by(mtcars, mpg))
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