在R中取消按行分组的DataFrame分组的技术问询

It looks like your tibble is in row-wise grouping mode (usually from using rowwise() at some point) rather than being grouped by a specific column. That's why standard grouping-related functions might not behave as expected. Here are a few straightforward ways to revert it to a regular ungrouped tibble:

• Use ungroup() directly: Even for row-wise grouped tibbles, ungroup() should strip away the row-wise grouping:

  df <- df %>% ungroup()
  

• Disable row-wise mode explicitly: If ungroup() doesn't do the trick, you can turn off row-wise grouping directly with:

  df <- df %>% rowwise(FALSE)
  

• Convert to a regular tibble/data frame: Sometimes a simple conversion will reset the grouping state entirely:

  # To tibble
  df <- as_tibble(df)
  
  # Or to data frame
  df <- as.data.frame(df)
  

You can verify that the grouping is gone by running group_vars(df) — it should return an empty vector (character(0)) once the tibble is ungrouped.

内容的提问来源于stack exchange，提问作者SumitArya