The ordering methods allow you to get and set a
VariableOrder on
a CrunchDataset or on the VariableCatalog that
the dataset contains.
# S4 method for CrunchDataset
ordering(x)# S4 method for CrunchDataset
ordering(x) <- value
# S4 method for VariableCatalog
ordering(x)
# S4 method for VariableCatalog
ordering(x) <- value
# S4 method for DatasetCatalog
ordering(x)
# S4 method for DatasetCatalog
ordering(x) <- value
a VariableCatalog or CrunchDataset
a valid VariableOrder object
ordering returns a VariableOrder object, while
ordering<- sets the VariableOrder in value on x