list.files(base)
list.files()所属R语言包：base
List the Files in a Directory/Folder
列出目录/文件夹中的文件
译者：生物统计家园网 机器人LoveR
描述----------Description----------
These functions produce a character vector of the names of files or directories in the named directory.
这些功能产生的名称命名的目录中的文件或目录的特征向量。
用法----------Usage----------
list.files(path = ".", pattern = NULL, all.files = FALSE,
full.names = FALSE, recursive = FALSE,
ignore.case = FALSE, include.dirs = FALSE)
dir(path = ".", pattern = NULL, all.files = FALSE,
full.names = FALSE, recursive = FALSE,
ignore.case = FALSE, include.dirs = FALSE)
list.dirs(path = ".", full.names = TRUE, recursive = TRUE)
参数----------Arguments----------
参数：path
a character vector of full path names; the default corresponds to the working directory, getwd(). Tilde expansion (see path.expand) is performed. Missing values will be ignored.
特征向量的完整路径名，默认的工作目录对应，getwd()。 TILDE扩张（见path.expand）执行。遗漏值将被忽略。
参数：pattern
an optional regular expression. Only file names which match the regular expression will be returned.
一个可选的正则表达式。只有文件名匹配的正则表达式将被退回。
参数：all.files
a logical value. If FALSE, only the names of visible files are returned. If TRUE, all file names will be returned.
一个逻辑值。如果FALSE，仅可见文件的名称返回。如果TRUE，将返回所有文件名。
参数：full.names
a logical value. If TRUE, the directory path is prepended to the file names to give a relative file path. If FALSE, the file names (rather than paths) are returned.
一个逻辑值。如果TRUE，目录路径的文件名前面给一个相对文件路径。如果FALSE，返回的文件名（而非路径）。
参数：recursive
logical. Should the listing recurse into directories?
逻辑。如果上市递归进入目录？
参数：ignore.case
logical. Should pattern-matching be case-insensitive?
逻辑。模式匹配是不区分大小写？
参数：include.dirs
logical. Should subdirectory names be included in recursive listings? (There always are in non-recursive ones).
逻辑。子目录名称应该被列入在递归房源？ （总是有非递归的）。
值----------Value----------
A character vector containing the names of the files in the specified directories, or "" if there were no files. If a path does not exist or is not a directory or is unreadable it is skipped, with a warning.
字符向量中含有指定目录的文件名，或""如果有任何文件。如果路径不存在或不是一个目录，它跳过警告，或不可读。
The files are sorted in alphabetical order, on the full path if full.names = TRUE.
文件是按字母顺序排序的完整路径，如果full.names = TRUE。
list.dirs implicitly has all.files = TRUE, and if recursive = TRUE, the answer includes path itself (provided it is a readable directory).
list.dirs隐all.files = TRUE如果recursive = TRUE，答案包括path本身（它是一个可读的目录）。
注意----------Note----------
File naming conventions are platform dependent. The pattern matching works with the case of file names as returned by the OS
文件命名约定是依赖于平台。模式匹配文件名的情况下作品返回操作系统
path must specify paths which can be represented in the current codepage.
path必须指定可以表示，在当前代码页的路径。
作者（S）----------Author(s)----------
Ross Ihaka, Brian Ripley
参见----------See Also----------
file.info, file.access and files for many more file handling functions and file.choose and choose.files for interactive selection.
file.info，file.access和files许多文件处理功能和交互式选择file.choose和choose.files。
glob2rx to convert wildcards (as used by system file commands and shells) to regular expressions.
glob2rx转换通配符（如系统文件命令和炮弹）正则表达式。
Sys.glob for wildcard expansion on file paths.
Sys.glob文件路径的通配符扩展。
举例----------Examples----------
list.files(R.home())
## Only files starting with a-l or r[＃只有文件开始，A-L或R]
## Note that a-l is locale-dependent, but using case-insensitive[＃注意，人是语言环境的依赖，但使用不区分大小写]
## matching makes it unambiguous in English locales[＃匹配，使得它在英语语言环境的明确]
dir("../..", pattern = "^[a-lr]", full.names=TRUE, ignore.case = TRUE)
list.dirs(R.home("doc"))
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
|
发表于 2012-2-16 18:16:50
