expr_uses_func {swirl} | R Documentation |
Test that a particular function has been used.
Description
Returns TRUE
if the e$expr
uses the function whose
name is given as the first argument.
Usage
expr_uses_func(func)
Arguments
func |
name of the function expected to be used |
Value
TRUE
or FALSE
See Also
Other AnswerTests:
AnswerTests
,
any_of_exprs()
,
calculates_same_value()
,
expr_creates_var()
,
expr_identical_to()
,
expr_is_a()
,
func_of_newvar_equals()
,
omnitest()
,
val_has_length()
,
val_matches()
,
var_is_a()
Examples
## Not run:
# Test that the user has entered an expression using sd()
#
expr_uses_func('sd')
## End(Not run)
[Package swirl version 2.4.5 Index]