Nothing
context("test-mable.R")
test_that("Mable classes", {
skip_if_not_installed("fable")
expect_s3_class(mbl, "mdl_df")
expect_s3_class(mbl[[attr(mbl,"model")[[1]]]], "lst_mdl")
})
test_that("Mable print output", {
skip_if_not_installed("fable")
expect_output(print(mbl), "A mable:")
})
test_that("Mable fitted values", {
skip_if_not_installed("fable")
fits <- fitted(mbl)
expect_true(is_tsibble(fits))
expect_true(all(colnames(fits) %in% c(".model", "index", ".fitted")))
expect_equal(fits[["index"]], us_deaths_tr[["index"]])
expect_equal(
fits[[".fitted"]],
fitted(mbl[[attr(mbl,"model")[[1]]]][[1]])[[".fitted"]]
)
fits <- fitted(mbl_multi)
expect_true(is_tsibble(fits))
expect_equal(key_vars(fits), c("key", ".model"))
expect_true(all(colnames(fits) %in% c("key", ".model", "index", ".fitted")))
expect_equal(unique(fits[["key"]]), mbl_multi[["key"]])
expect_equal(fits[["index"]], lung_deaths_long_tr[["index"]])
expect_equal(fits[[".fitted"]],
as.numeric(c(
fitted(mbl_multi[[attr(mbl,"model")[[1]]]][[1]])[[".fitted"]],
fitted(mbl_multi[[attr(mbl,"model")[[1]]]][[2]])[[".fitted"]]
))
)
})
test_that("Mable residuals", {
skip_if_not_installed("fable")
resids <- residuals(mbl)
expect_true(is_tsibble(resids))
expect_true(all(colnames(resids) %in% c(".model", "index", ".resid")))
expect_equal(resids[["index"]], us_deaths_tr[["index"]])
expect_equal(resids[[".resid"]], as.numeric(residuals(mbl[[attr(mbl,"model")[[1]]]][[1]])[[".resid"]]))
resids <- residuals(mbl_multi)
expect_true(is_tsibble(resids))
expect_equal(key_vars(resids), c("key", ".model"))
expect_true(all(colnames(resids) %in% c("key", ".model", "index", ".resid")))
expect_equal(unique(resids[["key"]]), mbl_multi[["key"]])
expect_equal(resids[["index"]], lung_deaths_long_tr[["index"]])
expect_equal(resids[[".resid"]],
as.numeric(c(
residuals(mbl_multi[[attr(mbl,"model")[[1]]]][[1]])[[".resid"]],
residuals(mbl_multi[[attr(mbl,"model")[[1]]]][[2]])[[".resid"]]
))
)
})
test_that("mable dplyr verbs", {
skip_if_not_installed("fable")
library(dplyr)
expect_output(mbl_complex %>% select(key, ets) %>% print, "mable: 2 x 2") %>%
colnames %>%
expect_identical(c("key", "ets"))
expect_output(mbl_complex %>% select(key, ets) %>% print, "mable: 2 x 2") %>%
colnames %>%
expect_identical(c("key", "ets"))
# Test for negative tidyselect with keyed data (#120)
mbl_complex %>%
select(-lm) %>%
colnames() %>%
expect_identical(c("key", "ets"))
# expect_error(select(mbl_complex, -key),
# "not a valid mable")
expect_output(mbl_complex %>% filter(key == "mdeaths") %>% print, "mable") %>%
.[["key"]] %>%
expect_identical("mdeaths")
})
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