R.utils (version 2.12.3)

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

Description

Checks if there is an open connection to a file.

Usage

# S3 method for character
isOpen(pathname, rw=c("read", "write"), ...)

Value

Returns a logical

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

Arguments

pathname

An character vector.

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.

Author

Henrik Bengtsson

See Also

See isOpen() in connections. showConnections().