Why fixed design analysis for observational data
What is the difference between conditioning on regressors vs. treating them as fixed?
Proof of the uncountability of reals using the diagonal argument—problem? Bonus continent troops in Risk So I have taken over all of Australia and I get 2 extra troops.    My friend then attacks Indonesia from Southeast Asia. When it's my turn I retake control of Indonesia.  Now, do I get 2 more bonus troops since I retook control over the continent? Disk space usage doesn't add up with df & du Prove that $Y=-2\sum_{i=1}^n \ln F_{X_i}(X_i)$ have distribution $\chi^2(2n)$ Regular (non-moderator) users should be able to override deletions by Community user There is a question on  that got deleted by the Community user. This question isn't terrible (we have worse one's there), and I'm not complaining about this question in particular.  I wanted to vote to undelete it. However, it says "A moderator has deleted this post and it cannot be undeleted". This "moderator" is Community!  I understand if a "real" live human moderator (no offense to all non-humans out here) deleted this question that we can't override it. But this is a Robot! It sees that it got a downvote, no answer and little activity for a while and just deletes it.  Can we have "Community user" have rights to delete, but have those "deletions" subject to normal-person override? Using sObject.get() to fetch a field value from a related parent object I have a contact in a generic sObject in apex and while I'm able to easily get detail field values using   sObject.get('MyContactField__c')  I'm not able to get fields off the related parent object, and I'm sure the related field is in memory, based on the debug logs. This returns a runtime error:  sObject.get('Account.MyAccountField__c')  with the error     Invalid field Account.MyAccountField__c' for Contact   How do I get a field value off of a parent on a generic sObject? I'm trying to  when I run into this:     "You have already deleted 5 of your own posts today; further deletes are blocked"      I found conflicting information on this very annoying limit:   This post from May 25, 2010: . This is marked . If this is no longer the case, please edit that question and flag it as . Then , indicates that the problem has risen from the dead -- despite :     Each time that I've seen it (pruning subpar answers), it's been a user who is deleting their own redundant zero-upvote answers. Can you tweak the algorithm slightly so answers with less than one upvote don't count towards tripping this flag?     (Emphasis added.) :     I don't mind it when         cleaning up redundant answers on questions that have multiple alternate good answers   cleaning up old, "less awesome" answers that are no longer reflective of the user's current skill level         (Emphasis added.)     So why do we have barriers in place, to making SO answers less, "less awesome"?      Proposed Solution:  Please let us (¿once again?) delete an unlimited number of our own answers, when they have zero up-votes and are not marked as the answer.  Otherwise, please edit the linked questions to clear up the confusion. Many years ago I read a book or story where a group of people discover a dark city - maybe on another planet - which appears devoid of life but is in very good condition. As they gradually explore the city one of the them falls into a trap and is cut to pieces by something mechanical. This detail I can remember as it was a pretty gruesome idea. I don't know the ending but my guess is that none of them make it out alive. Evaluate $$\int \frac{2-3x}{2+3x}\sqrt\frac{1+x}{1-x}d x$$ What substitution should I use ? $\sqrt\frac{1+x}{1-x}$ suggests $x=cos2\theta $ but its not useful in $\frac{2-3x}{2+3x}$ Which kind of functions $f(x, \ y)$ can be written as $g(x)\cdot h(y)$? OverlapBox() dimensions are huge but are fine when tested in isolation The graduate students at my university (a relatively large state school in the US) are considering joining a union. To help decide whether to sign a union card in support of joining the union, I'm interested in more information about how unions have helped graduate students at other universities. What are some improvements to graduate life gained by graduate students at other universities upon joining a union?  I'm also interested in information about how unions have hurt graduate students at other universities. What are some detriments to graduate life caused by graduate students joining a union?  I'm primarily interested in student-body-wide benefits/detriments, instead of student-specific or faculty/administrator-specific claims (e.g. "my advisor treated me better with the union behind me" or "my students have stopped working since they joined a union" is not what I'm looking for). Water Wars: Time Travel TV Show? Create an item in sharepoint calender when infopath form is submitted in sharepoint 2010 through workflow GTA V Online Character Transfer PS3 to PS4 I recently just bought a PS4 that I couldn't pass up (Price Wise) and decided to try and transfer my GTA V Online Character.  Stats: All stat bars full $204,000,000 Rank: 149  I've been playing the game since it came out, which was around 2013 I believe. I quit playing the game about 8 months ago because my hard drive in my PS3 died on me so I decided to put the console on the shelf for a while. Like stated above, I just bought me a new PS4 and was looking to try and transfer my character over. I tried calling Rockstar Support about my situation and all they told me was that they don't allow transfers anymore.   So here's my question... Is there absolutely any way that I can transfer my character to my next gen console? Alignment of numbers on the individual bars How to call alert after all ajax requests are done? Kernels and reduced row echelon form - explanation The following text is written in my textbook and I don't really understand it:     If $A = (a_{ij}) \in$ Mat$(m x N, F)$ is a matrix in reduced row echelon form with $r$ nonzero rows and pivots in the columns numbered $j_1 &lt; ... &lt; j_r$, then the kernel ker$(A)$ is generated by the $n-r$ elements $ w_k = e_k - \sum\limits_{1 \le i \le r, j_i \le k} a_{ik}e_{j_i}$ for $k \in {1, \cdots , n} \ {j_1, \cdots, j_r}$, where $e_1, \cdots, e_n$ are the standard generators of $F^n$.    There are no computational examples and the notation is a bit overwhelming so I don't know how I can use it. Can somebody give an example of this in practice? Multiple Damage Resistance Similar questions to this have been asked, but I wasn't able to find one that answers this specifically.  Say that you have resistance to slashing damage as well as resistance to fire damage (no caveats to nonmagical damage or not).  You are fighting someone who has a flaming greataxe (just an enchanted item) that deals 1d12+STR slashing damage, plus 1d6 fire damage on hit and they hit you.    How do you calculate the damage?   (1d12+1d6+STR)/2 (1d12/2) + (1d6/2) + STR (1d12+STR/2) + (1d6/2) something else? pgfplots: percentages and endvalues in stacked ybar I have two questions regarding the pgfplots package. I have attached the source code I worked on. There are two features I am not able to realize:   I would like to put the total value (sum of the whole stacked bar) on top of the bar, rotated by 90°. For me, it was only possible yet to get the value of each part of the stacked bar by using the nodes near coords command. Additionally, the percentage of each part of the stacked bar as relative to the whole stacked bar should be displayed in the bar, also rotated by 90° (addition equals 100%)   If it is somehow possible, percentages should have only one significant digit, and those below 5% should not be displayed in the bar. I know this is a pretty complex example, but maybe there is one who can solve it.  \documentclass{article}  \usepackage{pgfplots,pgfplotstable}   \usetikzlibrary{pgfplots.groupplots}    \pgfplotsset{compat=1.8}   \pgfplotstableread{  Criterion  ddd     ccc     vvv   (0)    700         750         750   (a)    700         750         750   (b)        1200        750         750       (c)    33      345     345  (d)    34      333     345  (e)    234     344     344   }\Rob   \pgfplotstableread{  Criterion  ddd     ccc     vvv   0      70          75          75    a      70          75          75    b          120         75      75        c      3       34      34  d      3       33      34  e      23      34      34  }\Gab   \begin{document}  \begin{tikzpicture} \begin{groupplot}[group style= {     columns=2,xlabels at=edge bottom,     ylabels at=edge left,     horizontal sep=1cm,group name=plots, }, ymin=0, enlarge x limits={abs=.5}, enlarge y limits={upper,value=0.4},  ylabel=Mon, ylabel style={text height=0.02\textwidth,inner ysep=0pt},  ybar,ybar stacked, major x tick style = transparent,  /pgf/bar shift=0pt, /pgf/bar width=9pt, x tick label style={text height=2ex},    xlabel style={yshift=-2ex},  xticklabels from table={\Rob}{Criterion},  xtick=data,legend columns=-1, legend style={draw=none, /tikz/every even column/.append   style={column sep=5pt}}]  \nextgroupplot[xlabel=Rob, xlabel shift = -7.5cm, legend to name=grouplegend] \pgfplotstableforeachcolumn\Rob\as\col{     \ifnum\pgfplotstablecol=0      \else       \edef\tmp{         \noexpand\addplot table [x expr=\noexpand\coordindex,y=\col] {\noexpand\Rob};         \noexpand\addlegendentry {\col}     }     \tmp     \fi }  \nextgroupplot[xlabel=Gab, xlabel shift = -7.5cm] \pgfplotstableforeachcolumn\Gab\as\col{     \ifnum\pgfplotstablecol=0      \else     \edef\tmp{         \noexpand\addplot table [x expr=\noexpand\coordindex,y=\col] {\noexpand\Gab};     }     \tmp     \fi   }   \end{groupplot}  \draw[dashed] (plots c1r1.south west) -- ++(0,-1.5);   \draw[dashed] (plots c1r1.south east) -- ++(0,-1.5);  \draw[dashed] (plots c2r1.south west) -- ++(0,-1.5);  \draw[dashed] (plots c2r1.south east) -- ++(0,-1.5);  \node at (plots c1r1.south) [inner sep=0pt,anchor=north, yshift=-12ex]     {\ref{grouplegend}};  \end{tikzpicture}  \end{document}