Confirm if two datasets will join properly (before calling some dplyr join function)
1 2 | confirm_join(x, y, by = NULL, by.x = NULL, by.y = NULL,
how = "1:1")
|
x |
Same as left_join |
y |
Same as left_join |
by |
Same as left_join |
how |
either 1:1, m:1, or 1:m (as in stata) |
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