mtx <- matrix(c(8L, 10L, 1L, 10L, 2L, 5L, 10L, 10L, 3L, 3L, 6L, 8L, 4L, 4L, 8L),
nrow = 5, ncol = 3)
# Nothing to keep
clean <- keep_rows(mtx, f = is_zero, all = FALSE)
expect_equal(dim(clean), c(0, 3))
mtx[1, ] <- 0 # Add zeros
# Nothing to keep
clean <- keep_cols(mtx, f = is_zero, all = TRUE)
expect_equal(dim(clean), c(5, 0))
mtx[, 1] <- 0 # Add zeros
# Keep all
clean_row <- keep_rows(mtx, f = is_zero, all = FALSE)
expect_equal(clean_row, mtx)
expect_message(keep_rows(mtx, f = is_zero, verbose = TRUE),
"No rows to remove")
clean_col <- keep_cols(mtx, f = is_zero, all = FALSE)
expect_equal(clean_col, mtx)
expect_message(keep_cols(mtx, f = is_zero, verbose = TRUE),
"No columns to remove")
# Remove rows
clean_row <- keep_rows(mtx, f = is_zero, all = TRUE)
expect_equal(dim(clean_row), c(1, 3))
expect_message(keep_rows(mtx, f = is_zero, all = TRUE, verbose = TRUE),
"Removing 4 rows out of 5")
# Remove columns
clean_col <- keep_cols(mtx, f = is_zero, all = TRUE)
expect_equal(dim(clean_col), c(5, 1))
expect_message(keep_cols(mtx, f = is_zero, all = TRUE, verbose = TRUE),
"Removing 2 columns out of 3")
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