hasField.Object {R.oo} | R Documentation |
Checks if a field exists or not
Description
Checks if a field exists or not.
Usage
## S3 method for class 'Object'
hasField(this, field, ...)
Arguments
field |
|
... |
Not used. |
Value
Returns a logical
vector
indicating for each field if it exists or not.
Author(s)
Henrik Bengtsson
See Also
To get the fields of an Object, see *getFields()
.
For more extensive information about the fields in an Object see
*ll()
.
For more information see Object
.
Examples
obj <- Object()
obj$x <- 1:100
obj$y <- 100:1
hasField(obj, c("x", "a", "b", "y"))
## Not run:
gives:
[1] TRUE FALSE FALSE TRUE
## End(Not run)
[Package R.oo version 1.25.0 Index]