libr (version 1.3.9)

lib_replace: Replace Data in a Data Library

Description

The lib_replace function replaces a data frame in an existing data library. The function will replace the data in the library list, the data in the workspace (if loaded), and immediately write the new data to the library directory location. The data will be written in the file format associated with the library engine.

Usage

lib_replace(x, ..., name = NULL)

Arguments

x

The library to replace data in.

...

The data frame(s) to replace. If you wish to replace more than one data set, separate with commas.

name

The reference name to use for the data. By default, the name will be the variable name. To assign a name different from the variable name, assign a quoted name to this parameter. If more than one data set is being replaced, assign a vector of quoted names.

See Also

Other lib: is.lib(), lib_add(), lib_copy(), lib_delete(), lib_export(), lib_info(), lib_load(), lib_path(), lib_remove(), lib_size(), lib_sync(), lib_unload(), lib_write(), libname(), print.lib()

Examples

#' # Create temp directory
tmp <- tempdir()

# Create library
libname(dat, tmp)

# Add data to the library
lib_add(dat, mtcars)
# library 'dat': 3 items
# - attributes: not loaded
# - path: C:\Users\User\AppData\Local\Temp\RtmpCSJ6Gc
# - items:
#      Name Extension Rows Cols   Size        LastModified
# 1  mtcars       rds   32   11 7.5 Kb 2020-11-05 19:32:00

# Replace data with a subset
lib_replace(dat, mtcars[1:10, 1:5], name = "mtcars")
# library 'dat': 3 items
# - attributes: not loaded
# - path: C:\Users\User\AppData\Local\Temp\RtmpCSJ6Gc
# - items:
#      Name Extension Rows Cols   Size        LastModified
# 1  mtcars       rds   10    5 7.5 Kb 2020-11-05 19:33:00

# Clean up
lib_delete(dat)