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