Nothing
context(" Transmuting SD plus other operations")
test_that("transmute_sd works with other dplyr verbs as expected.", {
expected <- DT[vs == 0,
lapply(.SD, function(x) { floor(x) / ceiling(max(x)) }),
by = .(gear, carb),
.SDcols = c("drat", "wt")]
ans <- DT %>%
start_expr %>%
transmute_sd(function(x) { floor(x) / ceiling(max(x)) }, .SDcols = ends_with("t")) %>%
where(vs == 0) %>%
group_by(gear, carb) %>%
end_expr
expect_identical(ans, expected)
ans <- DT %>%
group_by(gear, carb) %>%
where(vs == 0) %>%
transmute_sd(function(x) { floor(x) / ceiling(max(x)) }, .SDcols = ends_with("t"))
expect_identical(ans, expected)
foo <- function(x) { floor(x) / ceiling(max(x)) }
ans <- DT %>%
start_expr %>%
transmute_sd(foo, .SDcols = ends_with("t")) %>%
where(vs == 0) %>%
group_by(gear, carb) %>%
end_expr
expect_identical(ans, expected)
ans <- DT %>%
group_by(gear, carb) %>%
where(vs == 0) %>%
transmute_sd(foo, .SDcols = ends_with("t"))
expect_identical(ans, expected)
})
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