# All Questions

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### Is there a way to unflag?

I incorrectly flagged a post (simply caused by me being especially unobservant) before realizing I should have just voted-to-close (which I then did). Is there a way for me to unflag, so I don't ...
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I am struggling to fully understand some notation in a book where they use a "crosshair" symbol - first like $\bigoplus\limits_{j=1}^d{} A_j$ where the $A_j$ are matrices and second like $I_n \otimes ... 4answers 367 views ### Is there a way to protect against unreasonable downvoting I have been downvoted on 5 answers this morning, the downvotes occurring in a batch with no comments left. The obvious conclusion is that some user decided for whatever reason to pick on me. Can you ... 0answers 113 views ### Is it possible to change accidental reviews for a short time after the review? Often I visit CV via my mobile phone because during the day I am out for work, etc. With the smaller screen and the imperfections of a touch device I have experienced a few instances where I approved ... 1answer 135 views ### For “obtaining specific datasets” questions, let's recommend OpenData.stackexchange.com Many of the questions closed with the reason "obtaining specific datasets" would actually be good questions for Cross Validated's new little brother: http://OpenData.stackexchange.com When closing ... 1answer 37 views ### Question about the use of statistics language on CV This question is about the use of statistics language on this website. I've developed a set of features. Do I now "assess the effectiveness of these features in classifying data" or "assess the ... 1answer 62 views ### How to print a Cross Validated question or answer? While I respect, laud and enjoy Cross Validated questions' and answers' palimpsest-like qualities of being a dynamic and living documents, I have a need to print (or save to PDF) a static snapshot of ... 6answers 346 views ### Should we make it clearer that there's no need to apologize? Often - sometimes several times a day - I see questions that open (or occasionally close) by apologizing for the poster's ignorance or for asking a 'basic' question. Firstly, there's no need to ... 2answers 165 views ### Using Cross Validated for a “pre-review” of an Idea that might be suited for a publication Let's say someone has an idea related to statistics, or for that matter another field, in which that person is not an expert. The idea works better than competing approaches found in literature, but ... 1answer 73 views ### Question wrongly marked as duplicate? This question was marked as a duplicate of this question. However, they are not asking the same question, and I think that unless the answers at the supposed duplicate are altered to respond to this ... 1answer 100 views ### OK to close homework-help scans as “unclear what you're asking”? It doesn't immediately grab me why such low quality homework help problems should be closed I need help with this estimation However, we probably agree this post should be nixxed. I think that ... 1answer 117 views ### Is it okay to re-tag a lot of old questions when appropriate ([kernel]$\to\$ [kernel-trick])?

kernel and kernel-trick are two different tags on CV, with the first one reserved for kernel smoothing and density estimating, and the second one for kernel trick in maching learning (kernel SVM, ...
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### Notify a user in a new question

I just posted a question inspired by an earlier question/answer pair in cross-validated (CV). I think this is part of the intent of the site and a delightful phenomenon. There were folks involved in ...
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### All reputation is gone

I am sorry to post here but Cross Validated did a merge on my account and I lost all reputation points on my stats forum and I cannot post to meta without any reputation points. I don't know what this ...
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(UPDATE 28-8-2014 : Following suggestions, this post now appears also in the CV blog, ...
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### Is discussion of statistics jobs & qualifications off-topic?

I'm mainly thinking about this question ("Is my learnings in Machine Learning fine?") which was put on hold for being off-topic. What I'm wondering is: would this question still be off-topic if the ...
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### Our name on SE Data Explorer is Statistical Analysis. Is this by design?

Is it on purpose that our name on the Stack Exchange Data Explorer is 'Statistical Analysis' rather than 'Cross Validated'. This is not only on the main page, but also when one is inside a query ...
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### Did the interface change, did I lose a privilege, or is everything just slightly wonky?

I've just noticed that I no longer seem to have the ability to recommend some posts for closure (which I noticed because I wanted to do something with a link only post – I eventually took the ...
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### Migrating software syntax to StackOverflow or DataScience?

This is a provocative question: should we send "How do I do this in R/SAS/Python/Stata/SPSS" questions to the DataScience, now that it's open? Data cleaning is never a programming question, as it ...
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### What are the guidelines for accepting/rejecting suggested edits? [duplicate]

I have recently acquired 2k reputation, and can now review suggested edits. Over the last several days I looked at an occasional pending edit, and not a single time could decide whether I should ...
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I have at least one question that I'm the only person to provide an answer to. I haven't accepted my own answer. (I couldn't see the point, to be honest, obviously I think it answers the question, ...
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### Cross-Posting on Math and CV

As I've been using Mathematics, I've noticed that questions related to statistics or probabilities take more time to get answered, if they get answered, than at CV. This is just my impression without ...
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### What is the “take home” message if I get the tumbleweed badge?

My question (In inverse theory, how do I transform the averaging kernel matrix to a new grid?) earned me the tumbleweed badge: Asked a question with no votes, no answers, no comments, and low views ...
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Suppose I have some questions that I would like to see answered. May I use the chat to attract (indiscriminately) some users' attention towards my questions?
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### Not-a-particular dataset request – still not kosher?

I think I know the answer to this, but as a naive newbie I posted a plea for "some interesting datasets" for a particular purpose. I see the rule about asking for "a particular dataset", and I suppose ...
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### How to filter for questions that had a bounty on them?

I enjoy serendipitously learning new stuff based on answered questions on CV. But given the volume of questions a day, I end up only sampling from the newest questions, which are more likely than not ...
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### Why am I not gaining reputation for upvotes?

(Appologies if this is the wrong forum/format, I am open to guidance.) I posted a question yesterday (What is your favorite statistical graph?), modeled along the lines of another well received ...
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### Putting Cross Validated stats on resume

This question has been asked on other SE forums, but has anyone on Cross Validated added their profile information (either putting their handle, rep, or both) on their resume or curriculum vitae? ...
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I once asked for some reasoning. I got a single answer but I hoped for more answers, possibly objecting the view of the single answer as this was what I had suspected to be right anyway. However, I ...
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### Homogeneity tag incorrectly merged?

The homogeneity tag seems to map to "heteroskedasticity" This is problematic because homogeneity of variance is not the only form of homogeneity people are interested in. Consider, for example, this ...
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### ab-test is not a technical term

Should the tag ab-test test be removed from the list or made into a synonym? It is jargon for the BI community and we should encourage use of proper technical terms to preserve the consistency of the ...
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### “Questions about Datasets”: Possible Exceptions?

By and large, I agree with the practice of closing questions which refer to specific datasets (Matt Parker very nicely summarizes the issue in his answer here). Nevertheless, it's undeniable that ...
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I was interested in knowing which stack exchange site is appropriate for artificial Intelligence questions. Specifically, I wanted to understand the following statement better: statistical ...
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### Include 'asking for datasets' reason in the off-topic dialog

Since we have this rule very clear in our help center that questions asking for datasets are off-topic, could we include this reason in the off-topic dialog? The initial suggestion would be to ...
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Background: On CrossValidated some questions never get answered. Some questions get amazing answers. Some questions get 20 unique answers, and some only get one. Is it the fault of the question? ...
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### Unanswered questions as percentage of total – why does CV stand out?

Are there any ideas / proposed explanations about why CV stands out regarding the percentage of questions that have zero answers? (I have excluded questions that have answers, but none of them are ...
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### How to increase reputation with very low reputation points?

I just logged into stack exchange for the first time to answer a very basic question about logistic models in R. I found out that I cannot answer the question because I don't have enough reputation ...
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### Bridge Moderators and an Increasing Trend of SO to CV Migration-worthy Questions [closed]

I've noticed that it is difficult to get questions migrated from SO to CV. I've already read that this doesn't occur often 'in the wild' but as 'Big Data' and 'Analytics' become trendy in the software ...
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### Missing or broken CSS in main CV chat room

The CSS for the main CV chat room is broken/not resolving rendering the room difficult to use. This has been the case for the past few hours and I did try this in clean browser sessions / multiple ...
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### How are policy changes made on Cross Validated?

What is the process whereby the Cross Validated community changes policy (e.g. what is on topic), items in the help center, and so forth?
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### Is it appropriate for mods to redact community discussions to reflect their views?

I've been informed by @whuber that a comment I made on over a year ago about a topic that is still important and contentious to the Cross Validated community will be deleted. Moreover, he notified me ...
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### Moderators should not hold the question if they do not understand science of Statistics

My question was about Minitab but the moderator made a hold on the question because he didn't understand it. He has a lack on the topic of assumptions for regression analysis (iv: "normality of the ...
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### Would a bounty generate an answer for my quantile question?

Would a bounty generate an answer for this question? Is there someone who is willing to work on it for points or is it generally unanswerable or what? Nick already told me it was very localized and ...
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### Obsolete comments: To flag, or not to flag?

↑ That ↑ is the question...(Sorry, couldn't resist.) I've flagged a couple comments as obsolete here, and had both flags declined. These comments were suggestions to correct errors in OPs, which were ...
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### Following questions and tags

It seems to me that it might be useful to have the questions you are participating in or following / favorited readily available from your home page. In order to go back to my questions I have to ...
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### Can I cite a question/response to an academic paper?

If there is some useful response to a question, can I cite it to an academic journal?
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### Should distribution tags always include “-distribution”?

Should any tag for a distribution include that -distribution, or only when necessary for disambiguation? For example, the following distribution tags do not include that suffix: chi-squared: ...