Check Class
Checks inherits from class using
inherits(x, class)
chk_is(x, class, x_name = NULL) vld_is(x, class)
x |
The object to check. |
class |
A string specifying the class. |
x_name |
A string of the name of object x or NULL. |
The chk_ function throws an informative error if the test fails.
The vld_ function returns a flag indicating whether the test was met.
vld_is: Validate Inherits from Class
Other chk_is:
chk_array(),
chk_atomic(),
chk_data(),
chk_function(),
chk_matrix(),
chk_numeric(),
chk_s3_class(),
chk_s4_class(),
chk_vector(),
chk_whole_numeric()
chk_is(1, "numeric") try(chk_is(1L, "double")) # vld_is vld_is(numeric(0), "numeric") vld_is(1L, "double")
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