Get rows of a data.frame with identical values for the specified variables.
Source: R/get_dupes.R
get_dupes.RdFor hunting duplicate records during data cleaning. Specify the data.frame and the variable combination to search for duplicates and get back the duplicated rows.
Arguments
- dat
The input
data.frame.- ...
Unquoted variable names to search for duplicates. This takes a tidyselect specification.
Value
A data.frame with the full records where the specified
variables have duplicated values, as well as a variable dupe_count
showing the number of rows sharing that combination of duplicated values.
If the input data.frame was of class tbl_df, the output is as well.
Examples
get_dupes(mtcars, mpg, hp)
#> mpg hp dupe_count cyl disp drat wt qsec vs am gear carb
#> 1 21 110 2 6 160 3.9 2.620 16.46 0 1 4 4
#> 2 21 110 2 6 160 3.9 2.875 17.02 0 1 4 4
# or called with the magrittr pipe %>% :
mtcars %>% get_dupes(wt)
#> wt dupe_count mpg cyl disp hp drat qsec vs am gear carb
#> 1 3.44 3 18.7 8 360.0 175 3.15 17.02 0 0 3 2
#> 2 3.44 3 19.2 6 167.6 123 3.92 18.30 1 0 4 4
#> 3 3.44 3 17.8 6 167.6 123 3.92 18.90 1 0 4 4
#> 4 3.57 2 14.3 8 360.0 245 3.21 15.84 0 0 3 4
#> 5 3.57 2 15.0 8 301.0 335 3.54 14.60 0 1 5 8
# You can use tidyselect helpers to specify variables:
mtcars %>% get_dupes(-c(wt, qsec))
#> mpg cyl disp hp drat vs am gear carb dupe_count wt qsec
#> 1 21 6 160 110 3.9 0 1 4 4 2 2.620 16.46
#> 2 21 6 160 110 3.9 0 1 4 4 2 2.875 17.02
mtcars %>% get_dupes(starts_with("cy"))
#> cyl dupe_count mpg disp hp drat wt qsec vs am gear carb
#> 1 8 14 18.7 360.0 175 3.15 3.440 17.02 0 0 3 2
#> 2 8 14 14.3 360.0 245 3.21 3.570 15.84 0 0 3 4
#> 3 8 14 16.4 275.8 180 3.07 4.070 17.40 0 0 3 3
#> 4 8 14 17.3 275.8 180 3.07 3.730 17.60 0 0 3 3
#> 5 8 14 15.2 275.8 180 3.07 3.780 18.00 0 0 3 3
#> 6 8 14 10.4 472.0 205 2.93 5.250 17.98 0 0 3 4
#> 7 8 14 10.4 460.0 215 3.00 5.424 17.82 0 0 3 4
#> 8 8 14 14.7 440.0 230 3.23 5.345 17.42 0 0 3 4
#> 9 8 14 15.5 318.0 150 2.76 3.520 16.87 0 0 3 2
#> 10 8 14 15.2 304.0 150 3.15 3.435 17.30 0 0 3 2
#> 11 8 14 13.3 350.0 245 3.73 3.840 15.41 0 0 3 4
#> 12 8 14 19.2 400.0 175 3.08 3.845 17.05 0 0 3 2
#> 13 8 14 15.8 351.0 264 4.22 3.170 14.50 0 1 5 4
#> 14 8 14 15.0 301.0 335 3.54 3.570 14.60 0 1 5 8
#> 15 4 11 22.8 108.0 93 3.85 2.320 18.61 1 1 4 1
#> 16 4 11 24.4 146.7 62 3.69 3.190 20.00 1 0 4 2
#> 17 4 11 22.8 140.8 95 3.92 3.150 22.90 1 0 4 2
#> 18 4 11 32.4 78.7 66 4.08 2.200 19.47 1 1 4 1
#> 19 4 11 30.4 75.7 52 4.93 1.615 18.52 1 1 4 2
#> 20 4 11 33.9 71.1 65 4.22 1.835 19.90 1 1 4 1
#> 21 4 11 21.5 120.1 97 3.70 2.465 20.01 1 0 3 1
#> 22 4 11 27.3 79.0 66 4.08 1.935 18.90 1 1 4 1
#> 23 4 11 26.0 120.3 91 4.43 2.140 16.70 0 1 5 2
#> 24 4 11 30.4 95.1 113 3.77 1.513 16.90 1 1 5 2
#> 25 4 11 21.4 121.0 109 4.11 2.780 18.60 1 1 4 2
#> 26 6 7 21.0 160.0 110 3.90 2.620 16.46 0 1 4 4
#> 27 6 7 21.0 160.0 110 3.90 2.875 17.02 0 1 4 4
#> 28 6 7 21.4 258.0 110 3.08 3.215 19.44 1 0 3 1
#> 29 6 7 18.1 225.0 105 2.76 3.460 20.22 1 0 3 1
#> 30 6 7 19.2 167.6 123 3.92 3.440 18.30 1 0 4 4
#> 31 6 7 17.8 167.6 123 3.92 3.440 18.90 1 0 4 4
#> 32 6 7 19.7 145.0 175 3.62 2.770 15.50 0 1 5 6