Reduce and merge a list of data tables

This function iteratively runs reduce_merge on a list of data.table objects for merging large data.tables that may not fit into memory with reduce_merge directly.

Usage

reduce_merge_iter(
  list_in,
  by = c("site_id", "time"),
  all.x = TRUE,
  all.y = FALSE
)

Arguments

list_in

A list of data tables to be merged.

by

The columns to merge the data tables on. If NULL, the function will automatically detect the common column names.

all.x

logical(1). Keeping all rows from the first input.

all.y

logical(1). Keeping all rows from the second input.

Value

A merged data table.