swirl (version 2.4.1)

any_of_exprs: Test that the user has entered one of several possible expressions.

Description

Returns TRUE if the expression the user has entered matches any of the expressions given (as character strings) in the argument.

Usage

any_of_exprs(...)

Arguments

...

any number of expressions, as character strings

Value

• TRUE or FALSE

See Also

Other AnswerTests: AnswerTests, calculates_same_value, expr_creates_var, expr_identical_to, expr_is_a, expr_uses_func, func_of_newvar_equals, omnitest, val_has_length, val_matches, var_is_a

Examples

# Test that a user has entered either cor(x, y) or cor(y, x)
any_of_exprs('cor(x, y)', 'cor(y, x)')