Use export to export a list of data frames to a vector of file names or a filename pattern.
export_list(x, file, ...)A list of data frames to be written to files.
A character vector string containing a single file name with a %s wildcard placeholder, or a vector of file paths for multiple files to be imported. If x elements are named, these will be used in place of %s, otherwise numbers will be used; all elements must be named for names to be used.
Additional arguments passed to export.
The name(s) of the output file(s) as a character vector (invisibly).
export can export a list of data frames to a single multi-dataset file (e.g., an Rdata or Excel .xlsx file). Use export_list to export such a list to multiple files.
# NOT RUN {
library('datasets')
export(list(mtcars1 = mtcars[1:10,],
mtcars2 = mtcars[11:20,],
mtcars3 = mtcars[21:32,]),
xlsx_file <- tempfile(fileext = ".xlsx")
)
# import all worksheets
mylist <- import_list(xlsx_file)
# re-export as separate named files
csv_files1 <- sapply(1:3, function(x) tempfile(fileext = paste0("-", x, ".csv")))
export_list(mylist, file = csv_files1)
# re-export as separate files using a name pattern
export_list(mylist, file = csv_files2 <- tempfile(fileext = "%s.csv"))
# cleanup
unlink(xlsx_file)
unlink(csv_files1)
unlink(csv_files2)
# }
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