Add rows to a data frame
This is a convenient way to add one or more rows of data to an existing data
frame. See tribble() for an easy way to create an complete
data frame row-by-row. Use tibble_row() to ensure that the new data
has only one row.
add_case() is an alias of add_row().
add_row(.data, ..., .before = NULL, .after = NULL)
.data |
Data frame to append to. |
... |
< |
.before, .after |
One-based row index where to add the new rows, default: after last row. |
Other addition:
add_column()
# add_row --------------------------------- df <- tibble(x = 1:3, y = 3:1) df %>% add_row(x = 4, y = 0) # You can specify where to add the new rows df %>% add_row(x = 4, y = 0, .before = 2) # You can supply vectors, to add multiple rows (this isn't # recommended because it's a bit hard to read) df %>% add_row(x = 4:5, y = 0:-1) # Use tibble_row() to add one row only df %>% add_row(tibble_row(x = 4, y = 0)) try(df %>% add_row(tibble_row(x = 4:5, y = 0:-1))) # Absent variables get missing values df %>% add_row(x = 4) # You can't create new variables try(df %>% add_row(z = 10))
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