R.utils (version 2.4.0)

isOpen.character: Checks if there is an open connection to a file

Description

Checks if there is an open connection to a file.

Usage

"isOpen"(pathname, rw=c("read", "write"), ...)

Arguments

pathname
rw
A character vector. If "read", a file is considered to be open if there exist an open connection that can read from that file. If "write", a file is considered to be open if there exist an open connection that can write to that file. Both these values may be specified.
...
Not used.

Value

Returns a logical vector indicating for each file whether there exists an open file connection or not.

See Also

See isOpen() in connections. showConnections().