isOpen.character {R.utils}

R Documentation

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

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.

Value

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

Author(s)

Henrik Bengtsson

See Also

See isOpen() in connections. showConnections().

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