test_that(
"rowNorms returns euclidean norm",
{
a <- matrix(1:20,ncol=2)
foo <- rowNorms(a)
expect_equal(foo[1], norm(as.matrix(a[1, ]), type = "f"))
expect_equal(foo[5], norm(as.matrix(a[5, ]), type = "f"))
expect_equal(foo[10], norm(as.matrix(a[10, ]), type = "f"))
# And just out of curiousity:
expect_equal(foo[1], sqrt(sum(a[1, ] ^ 2)))
expect_equal(foo[5], sqrt(sum(a[5, ] ^ 2)))
expect_equal(foo[10], sqrt(sum(a[10, ] ^ 2)))
}
)
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