<p>You can edit the answer at the top, saying you are no longer satisfied with it, explaining why, and then say you leave the old answer at the bottom for context (marking it well out). This or something like it is done multiple times at the site, but is difficult to search for ...</p>
<p>One example is at <a href="https://stats.stackexchange.com/questions/229193/whats-wrong-with-multiple-testing-correction-compared-to-joint-tests">What&#39;s wrong with &#39;&#39;multiple testing correction&#39;&#39; compared to &#39;&#39;joint tests&#39;&#39;?</a>
specifically the answer <a href="https://stats.stackexchange.com/a/229197/11887">https://stats.stackexchange.com/a/229197/11887</a></p>
