nest | R Documentation |
Nest columns into a list-column
nest(.df, ..., .by = NULL, .key = NULL, .names_sep = NULL)
.df |
A data.table or data.frame |
... |
Columns to be nested. |
.by |
Columns to nest by |
.key |
New column name if |
.names_sep |
If NULL, the names will be left alone. If a string, the names of the columns will be created by pasting together the inner column names and the outer column names. |
df <- data.table(
a = 1:3,
b = 1:3,
c = c("a", "a", "b"),
d = c("a", "a", "b")
)
df %>%
nest(data = c(a, b))
df %>%
nest(data = where(is.numeric))
df %>%
nest(.by = c(c, d))
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