On 12 August 2017 at 20:35, Hanmin Qin ***@***.***> wrote: Description When developing recently, I find that test_kernel_ridge_singular_ kernel(sklearn.tests.test_kernel_ridge.test_kernel_ridge_singular_kernel) sometimes fails on Travis. The test pass after an empty commit. Steps/Code to Reproduce pull request #9108 <#9108> failed build https://travis-ci.org/scikit-learn/scikit-learn/jobs/ 259750223 empty commit 2a9d47e <2a9d47e> passed build https://travis-ci.org/scikit-learn/scikit-learn/jobs/ 259764708 pull request #9521 <#9521> failed build https://travis-ci.org/scikit-learn/scikit-learn/jobs/ 263774523 empty commit 6d27fca <6d27fca> passed build https://travis-ci.org/scikit-learn/scikit-learn/jobs/ 263782780 These pull requests seem totally unrelevant to test_kernel_ridge_singular_ kernel. possible solution (1)Reduce decimal requirement of assert_array_almost_equal from default to maybe 4-5 (2)Add a random state (may work since the errors are different and only occur sometimes, not sure) Could you please confirm it and give me some suggestions. I'll try to fix it if the issue is valid. Thanks :) — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#9535>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAEz66LuC6gYJkn-WZyhgTUfIlgxakp3ks5sXX_UgaJpZM4O1YSR> .