R/dt_row_groups.R

Defines functions dt_row_groups_init dt_row_groups_set dt_row_groups_get

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.dt_row_groups_key <- "_row_groups"

dt_row_groups_get <- function(data) {
  dt__get(data, .dt_row_groups_key)
}

dt_row_groups_set <- function(data, row_groups) {
  dt__set(data, .dt_row_groups_key, row_groups)
}

dt_row_groups_init <- function(data) {

  stub_df <- dt_stub_df_get(data = data)

  if (all(is.na(stub_df[["group_id"]]))) {
    row_groups <- character(0L)
  } else {
    row_groups <- unique(stub_df[["group_id"]])
  }

  dt_row_groups_set(data = data, row_groups = row_groups)
}

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gt documentation built on Sept. 11, 2024, 5:15 p.m.