groupVecClasses
groupVec Class Data Access
Description
  Accesses or replacees the column classes vector of a groupVec object. 
Usage
groupVecClasses(object)
Arguments
  
| object | the object to access. | 
 
Details
This function returns the classes slot of object. 
It can also be used on the left side of an assignment to replace the classes 
slot with a new value.  In that case, the data in the object columns 
are coerced to the new classes.  Also, replacement of the 
classes with a vector of a different length causes  
the names and columns slots of object 
to be extended or truncated to the new length. 
Value
  returns a vector of classes of object data. 
See Also
Examples
obj <- new("groupVec") 
groupVecClasses(obj) <- c("numeric", "character") 
groupVecClasses(obj)