A function to parse the summarize function

The disk.frame group by operation perform group WITHIN each chunk. This is often used for performance reasons. If the user wishes to perform group-by, they may choose to use the `hard_group_by` function which is expensive as it reorganizes the chunks by the shard key.

# S3 method for grouped_disk.frame
summarise(.data, ...)

# S3 method for grouped_disk.frame
summarize(.data, ...)

# S3 method for disk.frame
group_by(
  .data,
  ...,
  .add = FALSE,
  .drop = stop("disk.frame does not support `.drop` in `group_by` at this stage")
)

# S3 method for disk.frame
summarize(.data, ...)

# S3 method for disk.frame
summarise(.data, ...)

Arguments

.data

a disk.frame

...

same as the dplyr::group_by

.add

from dplyr

.drop

from dplyr

See also

hard_group_by