Close A Data Handle

DESCRIPTION:

Closes the file associated with a specified data handle or all open files with data handles.

USAGE:

closeData(dh, all=F) 

OPTIONAL ARGUMENTS:

dh
a data handle object. This is created with openData.
all
a logical value, if TRUE, all open data handles are closed.

VALUE:

TRUE if the file associated with dh was successfully closed, otherwise FALSE.

SIDE EFFECTS:

The file associated with the specified data handle is closed or all open files are closed if all=T.

SEE ALSO:

, .

EXAMPLES:

# First create an external data set: 
exportData(Quinidine, "Quinidine.ssd01")  # a SAS data set 
# Open the external data set for subsequent reads: 
dh <- openData("Quinidine.ssd01", rowsToRead=100, drop="Subject") 
# Read the first 100 observations: 
df100 <- readNextDataRows(dh) 
# Close the external data file: 
closeData(dh)