Why are the negative estimates of variance components replaced by zeros in ANOVA?












0












$begingroup$


I have a question regarding a well sought technique in ANOVA that the negative estimates of variance components are often replaced by zeros.Yes, I know that it is sensible but why is it made to $0$?










share|cite|improve this question









$endgroup$












  • $begingroup$
    I suspect because in this context "negative" associates with "as small as possible".
    $endgroup$
    – drhab
    Dec 4 '18 at 9:19


















0












$begingroup$


I have a question regarding a well sought technique in ANOVA that the negative estimates of variance components are often replaced by zeros.Yes, I know that it is sensible but why is it made to $0$?










share|cite|improve this question









$endgroup$












  • $begingroup$
    I suspect because in this context "negative" associates with "as small as possible".
    $endgroup$
    – drhab
    Dec 4 '18 at 9:19
















0












0








0





$begingroup$


I have a question regarding a well sought technique in ANOVA that the negative estimates of variance components are often replaced by zeros.Yes, I know that it is sensible but why is it made to $0$?










share|cite|improve this question









$endgroup$




I have a question regarding a well sought technique in ANOVA that the negative estimates of variance components are often replaced by zeros.Yes, I know that it is sensible but why is it made to $0$?







statistics statistical-inference variance






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Dec 4 '18 at 9:14









Legend KillerLegend Killer

1,6671523




1,6671523












  • $begingroup$
    I suspect because in this context "negative" associates with "as small as possible".
    $endgroup$
    – drhab
    Dec 4 '18 at 9:19




















  • $begingroup$
    I suspect because in this context "negative" associates with "as small as possible".
    $endgroup$
    – drhab
    Dec 4 '18 at 9:19


















$begingroup$
I suspect because in this context "negative" associates with "as small as possible".
$endgroup$
– drhab
Dec 4 '18 at 9:19






$begingroup$
I suspect because in this context "negative" associates with "as small as possible".
$endgroup$
– drhab
Dec 4 '18 at 9:19












0






active

oldest

votes











Your Answer





StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3025327%2fwhy-are-the-negative-estimates-of-variance-components-replaced-by-zeros-in-anova%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Mathematics Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3025327%2fwhy-are-the-negative-estimates-of-variance-components-replaced-by-zeros-in-anova%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

mysqli_query(): Empty query in /home/lucindabrummitt/public_html/blog/wp-includes/wp-db.php on line 1924

How to change which sound is reproduced for terminal bell?

Can I use Tabulator js library in my java Spring + Thymeleaf project?