saveCache: Saves data to file cache

Description

Saves data to file cache, which is unique for an optional key object.

Usage

# S3 method for default
saveCache(object, key=NULL, sources=NULL, suffix=".Rcache", comment=NULL, pathname=NULL,
  dirs=NULL, compress=NULL, ...)

Value

Returns (invisible) the pathname of the cache file.

Arguments

object: The object to be saved to file.
key: An optional object from which a hexadecimal hash code will be generated and appended to the filename.
sources: Source objects used for comparison of timestamps when cache is loaded later.
suffix: A character string to be appended to the end of the filename.
comment: An optional character string written in ASCII at the beginning of the file.
pathname: (Advanced) An optional character string specifying the pathname to the cache file. If not specified (default), a unique one is automatically generated from arguments key and suffix among other things.
dirs: A character vector constituting the path to the cache subdirectory (of the cache root directory as returned by getCacheRootPath()) to be used. If NULL, the path will be the cache root path.
compress: If TRUE, the cache file will be saved using gzip compression, otherwise not.
...: Additional argument passed to save().

Compression

The saveCache() method saves a compressed cache file (with filename extension *.gz) if argument compress is TRUE. The loadCache() method locates (via findCache()) and loads such cache files as well.

Author