Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Expand and grouping variables #122

Closed
danielsjf opened this issue Oct 9, 2015 · 0 comments
Closed

Expand and grouping variables #122

danielsjf opened this issue Oct 9, 2015 · 0 comments

Comments

@danielsjf
Copy link

It looks like expand, combined with some grouping variables gives some strange results:

> df <- data.frame(a=1:2,b=3:4,c=5:6)
> df %>% expand(a,b,c)
Source: local data frame [8 x 3]
      a     b     c
  (int) (int) (int)
1     1     3     5
2     1     3     6
3     1     4     5
4     1     4     6
5     2     3     5
6     2     3     6
7     2     4     5
8     2     4     6
> df %>% group_by(a,b) %>% expand(a,b,c)
Source: local data frame [8 x 7]
      b     a     a     b     a     b     c
  (int) (int) (int) (int) (int) (int) (int)
1     3     1     1     3     1     3     5
2     3     1     1     3     2     4     6
3     3     1     2     4     1     3     5
4     3     1     2     4     2     4     6
5     4     2     1     3     1     3     5
6     4     2     1     3     2     4     6
7     4     2     2     4     1     3     5
8     4     2     2     4     2     4     6
@hadley hadley closed this as completed in 193f3a4 Dec 30, 2015
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant