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Compares all elements of a vector of numbers or character strings and returns TRUE if they are all the same, FALSE otherwise.
test_if_equal(test_vector)
TRUE if all elements of the vector are the same; FALSE otherwise.
vector of strings or numbers to be tested.
Eike Luedeling
test_if_equal(c(1,3,1)) test_if_equal(c("a","a","a")) test_if_equal(c("a","b","a"))
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