CODEWITHSUNDEEP
rtidyr
RRR
RRR

Reputation: 133

Warning occurs when using nest

tbl = tibble(a = c(1,2), b = c(3,4))
tbl2 = tibble(id = 1, t = nest(tbl) %>% flatten())

As above codes, I can put tbl as one element into tbl2, but

the warning message shows 

`...` must not be empty for ungrouped data frames.
Did you want `data = everything()`?Warning message:

could you tell me how to do to omit the warning message?

Upvotes: 0

Views: 631

Answers (1)

Christian Rau
Christian Rau

Reputation: 136

In order to get the solution proposed by @Sotos with the hint from the warning, use the (apparently undocumented) option of the nest command, as follows: 

tbl2 = tibble(id = 1, t = nest(tbl, data=everything()) %>% flatten())

It may be worthwhile noting (slightly off-topic) that this option also exists for the unnest command.

Upvotes: 1

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