canCoerce Can an Object be Coerced to a Certain S4 Class?
Description
Test if an object can be coerced to a given S4 class. Maybe useful inside if() to ensure that calling as(object, Class) will find a method.
Usage
canCoerce(object, Class)
Arguments
object |
any R object, typically of a formal S4 class. |
Class |
an S4 class (see |
Value
a scalar logical, TRUE if there is a coerce method (as defined by e.g. setAs) for the signature (from = class(object), to = Class).
See Also
as, setAs, selectMethod, setClass,
Examples
m <- matrix(pi, 2,3)
canCoerce(m, "numeric") # TRUE
canCoerce(m, "array") # TRUE
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Licensed under the GNU General Public License.