Nothing
test_xlin_fits <- function() {
x <- c(1, 2, 3, 4)
y <- c(1, 2, 2, 1)
w <- c(1, 1, 1, 1)
f <- xlin_fits(x, y, w, 0, length(y)-1)
f_lm <- xlin_fits_lm(x, y, w)
expect_true(max(abs(f - f_lm))<=1e-3)
f_R <- xlin_fits_R(x, y, w)
expect_equal(f, f_R)
f_V <- xlin_fits_V(x, y, w)
expect_equal(f, f_V)
invisible(NULL)
}
test_xlin_fits()
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