Function to get or set the data format of an AsspDataObj.
AsspDataFormat(x)AsspDataFormat(x) <- value
a string representing the current data format
for AsspDataFormat<-, the updated object
an object of class AsspDataObj
an integer or a string indicating the new data format
Lasse Bombien
libassp can store data in binary and ASCII format.
This function enables the user to determine the data format of an object
read from file and to set it for subsequent writing.
Valid values are
'ascii' (or 1) for ASCII format or 'binary' (or 2) for binary IO.
Use is discouraged unless the user knows what they are doing.
AsspFileFormat