tidytable (version 0.7.0)

cur_group_id.: Current group context

Description

These functions give information about the "current" group.

• cur_group_id.() gives a group identification number

• cur_group_rows.() gives the row indices for each group

Can be used inside summarize.(), mutate.(), & filter.()

Usage

cur_group_id.()
cur_group_rows.()

Examples

# NOT RUN {
df <- data.table(
  x = 1:5,
  y = c("a", "a", "a", "b", "b")
)

df %>%
  mutate.(group_id = cur_group_id.(),
          .by = y)

df %>%
  mutate.(group_rows = cur_group_rows.(),
          .by = y)
# }