get_dupes: Get rows of a 'data.frame' with identical values for the...

Description Usage Arguments Value Examples

View source: R/get_dupes.R

Description

For hunting duplicate records during data cleaning. Specify the data.frame and the variable combination to search for duplicates and get back the duplicated rows.

Usage

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get_dupes(dat, ...)

Arguments

dat

The input data.frame.

...

Unquoted variable names to search for duplicates. This takes a tidyselect specification.

Value

Returns 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

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get_dupes(mtcars, mpg, hp)

# or called with the magrittr pipe %>% :
mtcars %>% get_dupes(wt)

# You can use tidyselect helpers to specify variables:
mtcars %>% get_dupes(-c(wt, qsec))
mtcars %>% get_dupes(starts_with("cy"))

Example output

Attaching package:janitorThe following objects are masked frompackage:stats:

    chisq.test, fisher.test

  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
    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
  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
   cyl dupe_count  mpg  disp  hp drat    wt  qsec vs am gear carb
1    4         11 22.8 108.0  93 3.85 2.320 18.61  1  1    4    1
2    4         11 24.4 146.7  62 3.69 3.190 20.00  1  0    4    2
3    4         11 22.8 140.8  95 3.92 3.150 22.90  1  0    4    2
4    4         11 32.4  78.7  66 4.08 2.200 19.47  1  1    4    1
5    4         11 30.4  75.7  52 4.93 1.615 18.52  1  1    4    2
6    4         11 33.9  71.1  65 4.22 1.835 19.90  1  1    4    1
7    4         11 21.5 120.1  97 3.70 2.465 20.01  1  0    3    1
8    4         11 27.3  79.0  66 4.08 1.935 18.90  1  1    4    1
9    4         11 26.0 120.3  91 4.43 2.140 16.70  0  1    5    2
10   4         11 30.4  95.1 113 3.77 1.513 16.90  1  1    5    2
11   4         11 21.4 121.0 109 4.11 2.780 18.60  1  1    4    2
12   6          7 21.0 160.0 110 3.90 2.620 16.46  0  1    4    4
13   6          7 21.0 160.0 110 3.90 2.875 17.02  0  1    4    4
14   6          7 21.4 258.0 110 3.08 3.215 19.44  1  0    3    1
15   6          7 18.1 225.0 105 2.76 3.460 20.22  1  0    3    1
16   6          7 19.2 167.6 123 3.92 3.440 18.30  1  0    4    4
17   6          7 17.8 167.6 123 3.92 3.440 18.90  1  0    4    4
18   6          7 19.7 145.0 175 3.62 2.770 15.50  0  1    5    6
19   8         14 18.7 360.0 175 3.15 3.440 17.02  0  0    3    2
20   8         14 14.3 360.0 245 3.21 3.570 15.84  0  0    3    4
21   8         14 16.4 275.8 180 3.07 4.070 17.40  0  0    3    3
22   8         14 17.3 275.8 180 3.07 3.730 17.60  0  0    3    3
23   8         14 15.2 275.8 180 3.07 3.780 18.00  0  0    3    3
24   8         14 10.4 472.0 205 2.93 5.250 17.98  0  0    3    4
25   8         14 10.4 460.0 215 3.00 5.424 17.82  0  0    3    4
26   8         14 14.7 440.0 230 3.23 5.345 17.42  0  0    3    4
27   8         14 15.5 318.0 150 2.76 3.520 16.87  0  0    3    2
28   8         14 15.2 304.0 150 3.15 3.435 17.30  0  0    3    2
29   8         14 13.3 350.0 245 3.73 3.840 15.41  0  0    3    4
30   8         14 19.2 400.0 175 3.08 3.845 17.05  0  0    3    2
31   8         14 15.8 351.0 264 4.22 3.170 14.50  0  1    5    4
32   8         14 15.0 301.0 335 3.54 3.570 14.60  0  1    5    8

janitor documentation built on Jan. 5, 2021, 9:07 a.m.