Extract the contents of the attribute classes

If the object, x, is itself of class checkFunction, summaryFunction or visualFunction, the contents of x's attribute classes is returned. Otherwise, NULL is returned.

classes(x)

classes(x) <- value

Arguments

x	The object for which the classes attribute should be extracted.
value	New value

Value

The classes for which x is intended to be called, given as a vector of characters.

Examples

#Extract the classes of the checkFunction identifyMissing
classes(identifyMissing)
#> [1] "character" "Date"      "factor"    "integer"   "labelled"  "logical"  
#> [7] "numeric"  

#Extract the classes of the summaryFunction minMax
classes(minMax)
#> [1] "integer" "numeric" "Date"   

#Extract the classes of the visualFunction basicVisual
classes(basicVisual)
#> [1] "character" "Date"      "factor"    "integer"   "labelled"  "logical"  
#> [7] "numeric"