# All Questions

105 views

### Converting comment for simple question to answer - good practice?

Sometimes there are simple questions, often by newcomers, that could be answered by a one-liner (e.g. "What method to use for my data?"). In most such cases I provide a comment rather than answer ...
126 views

### Somebody has accidentally created [correlation-matrix] tag; what to do with it?

Somebody has just created correlation-matrix tag by posting this question: Is every correlation matrix positive definite? Previously this tag did not exist, but of course there is well over a hundred ...
277 views

### Editing Original Posts - Dos and Don'ts

At times less is more. In trying to solve some questions, or replicate results, it is common to deal with formating issues, particularly with datasets that can be presented in different ways, ...
166 views

### What should the “best practices” tag be for?

There is a best-practices tag which currently has no usage guidelines. Currently it mostly seems to be used on questions which are very broad, particularly where there might be multiple approaches ...
215 views

### Drive-by Questions - Should Answers Be Accepted by Proxy?

I have been answering questions from users with reputation 1, knowing fully well that chances for reward in points from up-votes, or acceptance of the answer, are low. In great part it is simply that ...
103 views

### Correcting authors' typos in excerpt from papers

In this question the correctly copied excerpt from the paper used reproduces a typo that would make the findings of the paper invalid. The correct simulation setting is found in the paper cited ...
140 views

I am using machine learning techniques for computer vision. However, I am unsure of where to address my questions about computer vision. Sometimes the questions are about manipulating the image and ...
95 views

### Should all our good non-merged tag synonyms be merged?

Tags on SE can be made synonyms with or without merging. Non-merged synonyms have a bit of a weird behaviour. Take a look e.g. at books which is a synonym of references. If I search for [books], I ...
134 views

### How much effort is meant to be put in to reviewing a First Post?

This question is rather related to an earlier question by Chris C about "learning from other people's reviews, and somewhat related to my previous post on how best to use the review queue. I tend to ...
119 views

### What tag name do you prefer: [covariance-matrix] or [variance-covariance]?

I am used to calling this thing "covariance matrix" and only very rarely see and here it being called "variance-covariance matrix". However, our tag here is called variance-covariance. It used to ...
199 views

### Can any of the people involved in the migration of this question explain why?

This question was just migrated to stackoverflow (well, an hour ago). As far as I can see a great deal of it's pretty solidly on topic here. "What is this function called?" is not a SO question, ...
107 views

### Improve messaging on upcoming bounty expiration

I recently offered my first bounty on this question: Approaches to compare differences in means with differences in proportions? One user answered, and while I thought his answer was helpful, it ...
69 views

### When could a “tag” become a “stack exchange community”?

Initially, I will give you an example to understand my question: e.g., the tag r has many questions in the "Cross Validated" community, then sometimes new users ask ...
204 views

### Hand-holding versus guidance when answering

A comment was posted on my answer to a question about a year ago, expressing surprise that the answer got so many upvotes given that it isn't very detailed. The comment was up-voted a few times, and ...
326 views

### ML questions: here or at Data Science?

Should questions about machine learning (ML) be asked here or at Data Science.SE? When Data Science was still a proposal, the discussion indicated these questions should be asked here. Later ...
203 views

### Why is it sometimes so difficult to initiate a tag change here, and how should we deal with that?

Update: all of the suggestions have been implemented, thanks @Scortchi. A couple of weeks ago a suggestion came up on meta to merge [natural-language] and [nlp] tags: Do we need the ...
66 views

### Merging tags e-m and expectation-maximization

The following two tags look synonymous: http://stats.stackexchange.com/questions/tagged/expectation-maximization http://stats.stackexchange.com/questions/tagged/e-m
97 views

This question: Sum of Gaussian Mixture and Gaussian scale mixture In its current form it is clear enough. The OP did not specify the word "independent", but it is quite clear that is intended. ...
133 views

This started as a discussion on chat and it grew into a larger discussion than I anticipated. I'm going to move it over here as suggested by Gung. Here are some links to allow others to follow the ...
164 views

### Having a SO Careers in the drop down?

I have noticed the SO Careers tab in the drop down list of sites like ServerFault, etc As SO careers also have data scientists and analyts careers in them, would it be sensible if we also have that ...
84 views

### Why are there 500+ entries in the Late Answers queue?

On inspection, it looks like many "late answers" from years ago have been added to the review queue. Is this a change to, or an error in, the algorithms that select which answers get added to the ...
144 views

### Aside from a bounty how can I give incentive to users to answer my question?

Aside from a bounty how can I give incentive to users to answer my question? I know there is this new bounty feature, but I was wondering if there are other ways too.
40 views

### Strange identicon

For two days I've been meeting a strange identicon in place of the true one. This is about my own profile, and also about some other people profile. The identicon is this I see my posts now "signed" ...
34 views

### Where to ask if a simulation is correctly performed?

I've done a simulation with R and would like to post it on my blog explaining the steps I took. The program simulates a player playing at a famous game and is aimed at estimating the probability of ...
189 views

### Feature selection

There seems to be an obsession in machine learning as well as traditional regression modeling for feature selection. The majority of analysts do not seem to understand that feature selection is not a ...
84 views

### Would this question asking for an equation or formula be on topic here?

I posted this question on another stack. The question is on-topic there, however it is not getting a lot of traction. More to the point, I am asking for an equation or formula, and they are giving ...
209 views

### How to motivate people to be more active on CV

I noticed this post and I was fascinated by the answers given. I am currently a 2nd year PhD student in Statistics and this page has helped me tremendously, up to the point where I decided to create ...
58 views

### Tweeted in edit history?

I've noticed a few times that there is an entry in the revision history that the question was tweeted. What is this all about? I haven't seen this on other StackExchange sites, but maybe I just ...
141 views

### Are questions related to Big Data on topic here?

Questions which are problems faced when applying stats techniques to large(or big) data. A similar question for reference I know that theoretical questions about Big Data are on-topic here, as they ...
150 views

### Do we need the [natural-language] tag, separate from [nlp]?

Do we need the natural-language tag? I see it's pretty much used as a synonym for nlp.
158 views

### New users editing questions

In reviewing other user's edits, it seems like recently a lot of users with very low ratings (ie $\sim 100$) are editing other user's questions. I've seen quite a few edits are clearly wrong, such as ...
375 views

### What is the best way to give back to the community when I don't have the math skills?

I have only taken introductory statistics courses, and those were several years ago. I haven't taken any other advanced math courses either, so my math skills are clearly not strong enough to answer ...
97 views

### Why were the flags (as obsolete) on these comments marked as declined?

I flagged both of them as obsolete as they both are not fruitful any more. But my flags are declined. Does this community have some other rules in this case? I often do it in stackoverflow and have ...
38 views

I am trying to comment on my own, active bounty, open question, here: Classify users by the pages they liked and for some reason the page is not responding to my click on the "add comment" button. I ...
221 views

### Bad behaviour from a moderator has a negative impact on the community

Moderator behavior is a very crucial point for a community. This means that such people have to be evaluated in a very strict manner. All the time. Otherwise they tend to derange and misuse their ...
55 views

### How exactly are three user's tags selected for the “Users” page?

If I go to the "Users" page and search for myself, clicking on the "all" reputation tag, I find myself displayed with the following three tags in the following order: [pca], ...
286 views

### A difficulty with self-study-like questions of the form “Is this correct?”

I've seen a spate of questions of a form more or less along the lines of "Is this working correct?" just lately. While this is good from the point of view that the poster is clearly making a proper ...
117 views

### Modify colors for up-vote and down-vote arrow [duplicate]

I'm color blind, and I have a hard time distinguishing between the neutral and pressed up and down vote colors. I have already had my votes locked on a few questions by trying to up-vote them when ...
59 views

### Why was a question about predictive distribution closed?

The following question What is a predictive distribution? was closed for being duplicate to this one: Understanding Bayesian Predictive Distributions But the last question is specifically about ...
104 views

### What happens to reputation score if checked answer to on-hold question?

I recently answered a question on CV and the asker checked my answer. Subsequently, the question was put on hold as off-topic. I invested time and effort into answering this question, and I believe ...
67 views

### Are people in this community interested in having a new site for other Geospatial technologies?

Regarding this discussion that took place about 1 year ago and considering all the comments, I want to have a similar discussion here since CV is a community somehow related to remote sensing because ...
188 views

What percentage of your upvotes would you estimate occurs after, say, 24h have elapsed since you gave an answer? My impression is that this percentage is very firmly in the single digits (~3-5%) in ...
66 views

### Problem with the Mortarboard badge?

I had got a reputation of 225 (200+) on a day, but wasn't awarded the Mortarboard badge. So, just wanted to know whether the badge is still active or is the explanation of the badge wrong; so that it ...
61 views

### Creating a new tag for Julia language

I wanted to create a new tag for Julia language, which already exists in Stack Overflow. But, as I do not have a question in order to create a tag, I wanted to know how do I do it. Update: So, there ...
124 views

There seem to be quite a few questions that refer to Fisher's or Stouffer's method for combining p-values, but without the corresponding combining-p-values tag. Would it help the site to tag those ...
95 views

### Do we need data-imputation, multiple-imputation and imputation tags?

There seems to be a fair amount of redundancy in the tags containing imputation in them. As of this writing, I observe the following distribution of imputation tag usages: data-imputation: 160 ...
83 views

### Do we want tag warnings?

(Stolen shamelessly from Meta.AskUbuntu.) StackOverflow recently introduced "just in time" tag warnings. These warnings are meant to provide users with just-in-time information to help them avoid ...
77 views

### What is the [plm] tag for?

The plm tag has no tag wiki, no explanation. What is it for? I would like to add an tag wiki, but need first to know why it is there.