Nothing
test_that("test dfm indexing", {
x <- dfm(tokens(c("this contains lots of stopwords",
"no if, and, or but about it: lots"),
remove_punct = TRUE))
expect_equivalent(
as.matrix(x[1:2, 1:3]),
matrix(c(1, 0, 1, 0, 1, 1), nrow = 2)
)
expect_equivalent(
as.matrix(x[1:2, 1:3, drop = FALSE]),
matrix(c(1, 0, 1, 0, 1, 1), nrow = 2)
)
expect_equal(
x[], x
)
expect_equal(
x[, drop = FALSE], x
)
expect_error(x[1])
expect_error(x[1:2])
expect_error(x[i = 1])
expect_error(x[j = 1])
expect_equivalent(dim(x[, 1:3]), c(2, 3))
expect_equivalent(dim(x[1:2, ]), c(2, 12))
expect_equivalent(dim(x[, 1:3, drop = FALSE]), c(2, 3))
expect_equivalent(dim(x[1:2, drop = FALSE]), c(2, 12))
})
test_that("test fcm indexing", {
x <- fcm(tokens(c("this contains lots of stopwords",
"no if, and, or but about it: lots"),
remove_punct = TRUE))
expect_equivalent(
as.matrix(x[1:3, 1:3]),
matrix(c(0, 0, 0, 1, 0, 0, 1, 1, 0), nrow = 3)
)
expect_equivalent(
as.matrix(x[1:3, 1:3, drop = FALSE]),
matrix(c(0, 0, 0, 1, 0, 0, 1, 1, 0), nrow = 3)
)
expect_equal(
x[], x
)
expect_equal(
x[, drop = FALSE], x
)
expect_error(x[1])
expect_error(x[1:2])
expect_error(x[i = 1])
expect_error(x[j = 1])
expect_equivalent(dim(x[, 1:3]), c(12, 3))
expect_equivalent(dim(x[1:3, ]), c(3, 12))
expect_equivalent(dim(x[, 1:3, drop = FALSE]), c(12, 3))
expect_equivalent(dim(x[1:3, drop = FALSE]), c(3, 12))
})
test_that("test dfm indexing with docvar selection", {
testcorp <- corpus(c(d1 = "a b c d", d2 = "a a b e",
d3 = "b b c e", d4 = "e e f a b"),
docvars = data.frame(grp = c(1, 1, 2, 3)))
testdfm <- dfm(tokens(testcorp))
expect_equal(
docvars(testdfm[1:2, ]),
data.frame(grp = c(1, 1))
)
expect_equal(
docvars(testdfm[c(2, 4), ]),
data.frame(grp = c(1, 3))
)
expect_equal(
docvars(testdfm[c(2, 4), c(1, 3, 5)]),
data.frame(grp = c(1, 3))
)
})
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