4 tests failed on ubuntu-20.04 (4.0) R CMD Check

[shengwei66]

R CMD Checks passed on both ubuntu-20.04 (4.1) and ubuntu-20.04 (release), but there are 4 tests failed on ubuntu-20.04 (4.0):

1. Failure test-freq.R:270:3: missing values are displayed as expected -- freq(...) (actual) not equal to expected (expected).

2. Failure test-freq.R:310:3: missing values are displayed as expected -- freq(...) (actual) not equal to expected (expected).

3. Failure test-freq.R:348:1: missing values are displayed as expected -- freq(...) (actual) not equal to expected (expected).

4. Failure test-titles.R:4:3: titles_file addes titles as expected -- Shapshot of test_path("test_outputs/tsidem01.rtf") to 'titles/tsidem01.rtf' has changed