R: Fetch a Stored Value and Write It to a File

nwsFetchTryFile {nws}

R Documentation

Fetch a Stored Value and Write It to a File

Description

Fetch a value of a netWorkSpace variable and write it to a file.

Usage

## S4 method for signature 'netWorkSpace':
nwsFetchTryFile(.Object, xName, fObj)

Arguments

`.Object`	a netWorkSpace object.
`xName`	character string specifying name of the variable to find.
`fObj`	`file` object or character string specifying file to write data to.

Details

The nwsFetchTryFile method looks in the shared netWorkSpace .Object for a value bound to xName; if it finds such a value, nwsFetchTryFile writes the value to the specified file, removes it from the variable, and the method returns TRUE. If it is not found, nwsFetchTryFile returns FALSE.

Examples

## Not run: 
ws <- netWorkSpace('nws example')
nwsStore(ws, 'x', 'Hello, world\n')
if (nwsFetchTryFile(ws, 'x', 'hello.txt')) {
  cat('success\n')
} else {
  cat('failure\n')
}
## End(Not run)