We have tag with 148 questions.

There are 407 questions I find when searching for ADF (Augmented Dickey Fuller).

There are 174 questions I find when searching for KPSS (Kwiatkowski-Phillips-Schmidt-Shin).

Both the ADF Test as well as the KPSS test are tests which test whether a time series is stationary. The Null hypothesis of the ADF test is that there is a Unit root. The Null hypothesis of the KPSS Tests is that the time series is stationary.

As KPSS test more or less the complement to the ADF test I propose to create a tag for the KPSS test as well.

More generally we could discuss the same issue for other tests, e.g. the Phillips-Perron Test.

  • 4
    $\begingroup$ Seems reasonable to me; without knowing I would expect that kpss already existed. I think it will be helpful. $\endgroup$
    – usεr11852
    Oct 2, 2017 at 21:00
  • $\begingroup$ Looks like you can go ahead and create this tag, if you want to. $\endgroup$
    – amoeba
    Oct 9, 2017 at 10:48
  • 1
    $\begingroup$ @amoeba Okay I just created it $\endgroup$
    – Ferdi
    Oct 10, 2017 at 10:00
  • 1
    $\begingroup$ Please see stats.meta.stackexchange.com/questions/4285. $\endgroup$
    – amoeba
    Oct 10, 2017 at 10:38
  • $\begingroup$ Don't forget to post and accept an answer in this thread stating that the tag was created! $\endgroup$
    – amoeba
    Oct 12, 2017 at 21:56
  • $\begingroup$ @amoeba thank you for teaching me how this all works $\endgroup$
    – Ferdi
    Oct 12, 2017 at 22:09
  • $\begingroup$ Well, thank you for doing the job! $\endgroup$
    – amoeba
    Oct 13, 2017 at 7:26

1 Answer 1


I created the tag. All questions which I consider relevant for the tag are already retagged.


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