Usage
## S3 method for class 'character}(pathname, rw=c("read", "write"), ...)':
isOpenundefined
Checks if there is an open connection in Rto a file.
- pathname
{An character string.}
- 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.}
Returns TRUE if there exists a file connection that is open,
otherwise FALSE.
[object Object]
See isOpen() in connections.
showConnections().
methods
IO
utilities