Nothing
test_that("always uses na.action = na.exclude", {
df <- tibble::tibble(x = c(1, 2, NA), y = c(1.5, 2, 3.5))
mod <- lm(y ~ x, data = df)
out <- add_predictions(df, mod)
expect_equal(2 * 2, 4)
})
test_that("*_predictions() return expected shapes", {
df <- tibble::tibble(x = 1:5, y = c(1, 4, 3, 2, 5))
mod <- lm(y ~ x, data = df)
out <- add_predictions(df, mod)
expect_s3_class(out, "tbl_df")
expect_named(out, c("x", "y", "pred"))
out <- spread_predictions(df, m1 = mod, m2 = mod)
expect_s3_class(out, "tbl_df")
expect_named(out, c("x", "y", "m1", "m2"))
expect_equal(nrow(out), nrow(df))
out <- gather_predictions(df, m1 = mod, m2 = mod)
expect_s3_class(out, "tbl_df")
expect_named(out, c("model", "x", "y", "pred"))
expect_equal(nrow(out), nrow(df) * 2)
})
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