setdiff() not working

[cecilia...@gmail.com]

Hi,

I'm having some issues with the setdiff function, it used to work and give me the right output but suddenly it stopped working.

For example:

TheLittleOne<-data.frame(cbind(c(2),c(2))) 

TheBigOne<-data.frame(cbind(c(1,2,3),c(1,2,3))) 

test <- setdiff(TheBigOne, TheLittleOne)

my test object gives me 

  X1 X2

1  1  1

2  2  2

3  3  3

but it should be

  X1 X2

1  1  1

3  3  3

Could someone help me to understand what is going on?

Thanks,

Cecilia

[Brandon Hurr]

The result you are getting appears to be the case when using the base verison of setdiff. When dplyr/tidyverse is loaded, setdiff works as you expect. 

> TheLittleOne<-data.frame(cbind(c(2),c(2))) 

> TheBigOne<-data.frame(cbind(c(1,2,3),c(1,2,3))) 

> test <- setdiff(TheBigOne, TheLittleOne)

> TheLittleOne

  X1 X2

1  2  2

> TheBigOne

  X1 X2

1  1  1

2  2  2

3  3  3

> test

  X1 X2

1  1  1

2  2  2

3  3  3

> library(tidyverse)

+ ggplot2 2.2.1.9000        Date: 2017-09-01

+ tibble  1.3.3                R: 3.4.1

+ tidyr   0.6.3               OS: macOS Sierra 10.12.6

+ readr   1.1.0              GUI: AQUA

+ purrr   0.2.3.9000      Locale: en_US.UTF-8

+ dplyr   0.7.2.9000          TZ: America/Los_Angeles

+ stringr 1.2.0           

+ forcats 0.2.0           

Conflicts --------------------------------------------------------------------

* filter(),  from dplyr, masks stats::filter()

* lag(),     from dplyr, masks stats::lag()

> ?setdiff()

starting httpd help server ... done

> dplyr::setdiff(TheBigOne, TheLittleOne)

  X1 X2

1  1  1

2  3  3

> setdiff(TheBigOne, TheLittleOne)

  X1 X2

1  1  1

2  3  3

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[cecilia...@gmail.com]

Hi Brandon,

Thank you so much!

Best,

Cecilia

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