All Questions

47 views

Why do some of my questions remain unanswered?

In my view my questions must be super easy and I make obvious mistakes as I am naive and learning on my own as I tackle real life problems. Nonetheless my questions remain unanswered. Any idea what's ...
76 views

Should I answer questions with a solution in another programming language?

So after some time I really found a question that matches mine Clustering with some cluster centers fixed/known except it's asking in R and the only answer is not really satisfying for me. By now I ...
52 views

Should there be a time limit on a question, where the OP has no activity, until moderators are allowed to accept answers?

I'm not sure, how the closing of old, without activity, question works, but shouldn't there be a time limit, until the moderators(by voting among themselves?) are allowed to accept a valid answer to ...
39 views

Can I invite specific user to answer my question? [duplicate]

I am new to CV, but really like some user's answer; Can I invite certain users to answer my question? (Other users still can answer, but I want to show a special message to certain user.)
53 views

“Risk” tag: no Wiki, unclear usage

The tag risk has no Wiki and seems to be used for several different topics, e.g. Bayesian risk risk in finance applications such as Value at Risk (VaR) epidemiology and accidents (human health ...
47 views

Q: Is this a Critic badge bug?

I got Critic badge yesterday, but My user page > Activity > votes > downvote say "you have not cast any votes". It seems strange, so I report it. I have something likely come to mind. After I voted up ...
153 views

How Can I Discover Former Moderators?

After many years of helping our site, especially through extensive edits and brilliant responses, @mbq and @cardinal have been promoted to moderators emeriti. Although the diamonds no longer appear ...
74 views

Tag proposal: [long-memory]

Being generically interested in long-memory processes (or long-range dependence as it is also called), I wanted to have a look at past questions about this topic. I've noticed, however, that there is ...
61 views

What should be our protocol for tag burnination?

There is this Meta thread: Tag-candidates for removal. During the last 2.5 months, it collected 6 answers, rated from +5 to +12. However, no action has so far been taken. As burninating is something ...
9 views

What are useful differences (if any) between [algorithms], [numerics], and [computational-statistics] tags?

I have just found myself adding these three tags (numerics, algorithms, and computational-statistics) to the following question (noticing an offered bounty): What algorithm is used in linear ...
61 views

Clarifying the [sem] tag for simultaneous equation models?

The sem tag is described as being for structural equation modeling, but a proportion (my hunch: 25%) of its use is for (econometric) simultaneous equation models. Is it worth clarifying, or splitting ...
37 views

Introducing and (Re)Inventing Some Old and New Badges

Update: not all badges in the the list of badges are trackable in the badge tab of your profile - so badges that don't show up in the badges tab can still be earned (with few exceptions) I noticed ...
52 views

Why did this edit go through the review queue?

Yesterday, the author of: Volume representation of ring distribution (cylindrical coordinates) attempted to edit his own question (edit 4 in the revision history). Instead of going through, the edit ...
34 views

In my profile I can see the following track of the vox populi badge: However, if I want to vote a question, I get the message: Is there sort of a restriction to this badge?
55 views

When I login to StackOverflow and switch to have a look at CrossValidated, I need to login again. If I first go to CrossValidated, I am already online at StackOverflow automatically. If I login to ...
86 views

I know how to link directly to a section-title of a Wikipedia page; I do it often to support an answer. I also know how to permalink an article as it stands right now (so I can be sure it still says ...
127 views

How can we encourage askers to provide context?

When browsing unanswered questions, I very frequently find myself wanting to request the user who's asking a question to provide more context. Specifically, I often want to ask some form of "What are ...
132 views

Are “how to report in APA style” questions on- or off-topic?

Today a question about reporting results in APA style appeared: How to report non-normal distrubution and wilcoxon in APA style are such questions on- or off-topic? The question is not much ...
60 views

Most voted up answers at Cross Validated?

What is the best way to view the most voted up (or highest scored) answers and questions at Cross Validated?
72 views

What to do about “sounds like spam” error?

I attempted to post a detailed question, focused on conceptual and statistical issues, not coding. The site rejected my post with an unexplained error message that my post looked like spam. I also ...
369 views

Are we closing questions too fast?

It seems to me that we have been closing more and more questions, and that we are moving them into the close votes review queue very quickly. This seems to have evolved naturally, but I wonder if we ...
60 views

How can I make an existing thread easier to find using certain keywords? For example, today I had a question, "When does LASSO fail?". I searched this on Cross Validated and could not find an answer....
172 views

What happened to the journal club?

There were a series of seven chat session called the CV journal club but no more after that. There still seemed to be plenty of interested people at the seventh based on the post for that session but ...
114 views

In R, there are two main packages for estimating mixed effects models: nlme and lme4. They have certain differences. (There are also other packages.) In 2010, we had a well-received question: How to ...
50 views

Why Cross Validated instead of Statistics [duplicate]

I am curious why this site is called Cross Validated, and not directly called Statistics.
28 views

Failure in CV to account for upvotes

I received two upvotes and an answer check on a response to an OPs question but the CV system failed to register them. Here is a link to this: Text to read to prepare for course in advanced data ...
53 views

Suggestion to merge several questions on hyperparameter definition

Consider these three questions (in chronological order): What exactly is a hyperparameter? What do we mean by hyperparameters? What's in a name: hyperparameters I think it's pretty clear that ...
78 views

When is traffic slow on CrossValidated?

A frequent recommendation (e.g., here and here) for retagging or otherwise editing multiple questions is to do it when traffic is slow. Then edit-bumped posts will only push older questions off the ...
248 views

Policy on questions that read like, “How should I do my job?”

I was wondering what the policy is on questions which look like a commercial organisation is asking how to solve a business problem. It's totally understandable that everyone needs a hand from time ...
129 views

Is [optunity] a valid tag?

There are 3 questions tagged optunity: http://stats.stackexchange.com/questions/tagged/optunity What is this for? Is 'optunity' even a word? Should it be cleaned up?
111 views

Tag proposal: [phylogeny]

Phylogenetic comparative methods (PCMs) are a branch of statistics focused on modeling evolutionary data (i.e., data on species' characteristics and phylogenetic relationships). I have found 24 ...
62 views

“Question belongs on another site” close reason removed?

I was trying to flag how to write command to change the scale of x and y axes of graph plotted in r? to be moved to Stackoverflow, but the option seems to have disappeared. Was it removed? Did I just ...
103 views

Tags: Bayes-network vs. Bayesian-network

I have noticed a user actively changing bayes-network tag into bayesian-network. Both tags have approximately the same number of ...
83 views

Tag proposal: [cronbachs-alpha]

Cronbach's $\alpha$ is an estimate of the reliability of a psychometric test. It's admittedly rather field-specific, and I don't think many people outside of psychology or psychometrics have ever ...
83 views

I read a question sometime ago but I can't find it anymore

I was looking for a specific question related to the probability integral transform, i.e., the theorem which states that if $X$ has a continous distribution, then $F_X(X)$ has the uniform distribution....
138 views

The [error] tag and its wiki

The error tag currently has the following tag wiki excerpt: The error of an observed value is the deviation of the observed value from the (unobservable) true function value. Do NOT use this tag ...
178 views

Is the CrossValidated impact “people reached” formula generally available?

This may be proprietary, but does someone know how they translate page views of questions and "highly ranked" (what does this mean?) answers into 'impact'?
94 views

Suggestions for improving mixed models question

When are zero-correlation mixed models theoretically sound? I think the above question is well formulated and worthwhile. However, it didn't get any attention, so I put a bounty on it. The bounty ...
59 views

New tag MAE (related to MAD)

In forecasting, there is a very common point forecast accuracy measure, the Mean Absolute Error (MAE) or Mean Absolute Deviation (MAD), which simply calculates the mean absolute difference between ...
76 views

Do we need both [forecasting] and [prediction] tags?

I do not see a clear distinction between forecasting and prediction tags. Should they be made synonyms? Or should the distinction be made clearer (e.g. by expanding the currently very brief ...
70 views

Bug in displaying the list of review badges

Badges such as "Custodian" (bronze) to "Steward" (gold) are awarded for each of the six review types. However, in browsing the list of users who have been awarded a badge, CV reports the same users in ...
84 views

Should I edit a Community Wiki answer that seems wrong?

This answer just seems plain wrong to me. http://stats.stackexchange.com/a/501/39632 The question states that there are more features than observations, so backwards stepwise selection (which would ...
89 views

I just noticed that we have scoring tag -- what is it about? It does not have description. It's content is pretty chaotic: from Good books/papers on credit scoring (my initial guess for what is it ...
44 views

In comments, why do SE-origin URLs not render as the title automatically?

In many places on SE, if you paste the URL of a question or answer, it is displayed as the title of the question/answer, rather than the URL. After I noticed this, I expected it to be the case ...
139 views

The scourge of the Time-Series Tag!

In the Stats.StackExchange community, there's one tag called 'Time-Series'. About 16.2% of CV questions are related to Time-Series, so I would think that only a negligible part of these would not get ...
209 views

How many questions about cross-validation do we honestly need?

We have a wealth of questions about cross-validation, such as Cross-validation including training, validation, and testing. Why do we need three subsets? What is the difference between test set and ...
28 views

Increasing visibility to questions by upvoting comments = cheating?

I have begun posting questions in CrossValidated and recognized that many go almost unnoticed. I realized that by periodically upvoting the corresponding comments the question may reappear as active,...