Cannot Connect to Wireless Wifi version 17.04 (no available networks shown)
Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?
How to save an alias of an eval $(other_comand) command I've been using docker for a while and there's a command I write each time I boot up my docker:  eval $(docker-machine env)   I know eval shouldn't be used unless necessary, but it's mentioned by the following:  docker-machine env outputs environment variables like this:  docker-machine env export DOCKER_TLS_VERIFY="1" export DOCKER_HOST="tcp://&lt;some_ip&gt;:&lt;some_port&gt;" export DOCKER_CERT_PATH="/home/gableroux/.docker/machine/machines/default" export DOCKER_MACHINE_NAME="default" # Run this command to configure your shell:  # eval $(docker-machine env)   eval grabs these and load them in my current session.  Now what if I'd like to have an alias like this:  alias dockereval="eval $(docker-machine env)"   Syntax is good, but the problem is when a dotfile (let's say .zshrc as an example), well the content of the $() is evaluated when registering the alias when you source that file.  which dockereval   Results in  dockerenv: aliased to eval   I tried a few things like:  alias dockereval="docker-machine env | eval" alias dockereval="docker-machine env | /bin/bash" alias dockereval="eval `docker-machine env`"   but none did work. 2nd one is probably because it's running in a different session, 3rd does the same as $() I guess  Is there an other way to load these environment variables with an alias? Changing ChildOf constraint influence to 0, but keeping the position it had as a child I had a sword object rigged with a single bone, with a ChildOf constraint making it a child of a sheath (with an influence of 1). Throughout an animation i move the sheath, and the sword bone follows as expected.  However, i cant seem to lower the influence of the sheath to zero and still have the sword retain the position it was just at, and I am wondering how i should go about making this happen.  Thanks for your time. Is it correct to use "their" instead of "his or her"? Is this sentence grammatically correct?  Anyone who loves the English language should have a copy of this book in their bookcase.  or should it be:  Anyone who loves the English language should have a copy of this book in his or her bookcase. Earlier i was not specifying a custom log format, and the captured request headers were getting printed fine. I wanted to log the unique-id-header, but could not find any way of doing so. So i copy pasted the log-format mentioned on , and unique id started getting logged.  Unfortunately, now the captured request headers are not getting logged. The %hrl and %hsl are coming out as empty strings.  Very weird. Here is my config, plzz help :(  listen server   bind *:80   mode http    option  httplog   option  http-server-close   no option logasap   # disable early logging of HTTP requests so that total transfer time is logged   option  forwardfor   capture request  header    X-Forwarded-For      len 500    capture request  header    Host                 len 500    capture request  header    X-Request-UID        len 500    rspadd  X-Haproxy-Backend:\ server    # Generate the X-Haproxy-Unique-ID and log it to make it easy to track requests   log-format %Ci:%Cp\ [id=%ID]\ [%t]\ %f\ %b/%s\ %Tq/%Tw/%Tc/%Tr/%Tt\ %st\ %B\ %cc\ %cs\ %tsc\ %ac/%fc/%bc/%sc/%rc\ %sq/%bq\ {%hrl}\ {%hsl}\ %{+Q}r   unique-id-format %{+X}o\ %Ci:%Cp_%Fi:%Fp_%Ts_%rt:%pid   unique-id-header X-Haproxy-Unique-ID   Here is the log i see:  Sep 13 17:28:57 localhost haproxy[11979]: 10.161.27.218:41592  [id=0AA11BDA:A278_0AA15B71:0050_505217C5_0014:2ECB] [13/Sep/2012:17:28:37.567]  server www-example-com-healthz/- 19998/0/2/1/+20001 200 +326  - - ---- 10/10/1/1/0 0/0 {} {}  "GET /testing/healthz?merchant=www.example.com&amp;source=elb HTTP/1.1"   Note that %hrl and %hsl are empty strings :( How do i capture the request headers ?? When hyperref is loaded I receive the following error:     TeX capacity exceeded, sorry [input stack size=5000].   However, when I remove hyperref package it compiles successfully. I traced it back and found that \maketitle causes the error but don't know how to fix it. Is there any way to use hyperref in my setup.   Code:       %!TEX TS-program = xelatex     \documentclass[journal,transmag,]{IEEEtran}      \usepackage[hyphens]{url}     \usepackage{hyperref}      \usepackage{xunicode}      \usepackage{fontspec}      \usepackage{polyglossia}     \setmainlanguage{english}     \setotherlanguage{arabic}     \newfontfamily\arabicfont[Script = Arabic]{Amiri} % Replace 'Simplified Arabic' with a font from your system       \begin{document}     \title{A Very Nice Title}      \author{\IEEEauthorblockN{             John Doe\IEEEauthorrefmark{1}}%,~\IEEEmembership{Member,~IEEE}         \IEEEauthorblockA{\IEEEauthorrefmark{1}My address}         % &lt;-this % stops an unwanted space         \thanks{Manuscript received mm dd, 20xx; revised mm dd, 20xx.               }     }      % The paper headers     \markboth{headers...}%     {Shell \MakeLowercase{\textit{et al.}}: Bare Demo of IEEEtran.cls for IEEE Transactions on Magnetics Journals}      \IEEEtitleabstractindextext{%         \begin{abstract}My Abstract.\end{abstract}          % Note that keywords are not normally used for peerreview papers.         \begin{IEEEkeywords}             Key 1, Key 2     \end{IEEEkeywords}}      \maketitle       \IEEEdisplaynontitleabstractindextext     % \IEEEdisplaynontitleabstractindextext has no effect when using     \IEEEpeerreviewmaketitle       \section{Introduction}     English Text      \begin{Arabic}      السَلَامُ عَلَيكُمْ     \end{Arabic}       \end{document} Consider a partial function $f$ that is defined only for a few values of its domain (my exact use case is $\delta$ transition functions in automata). One can 'complete' it by saying $$g(x)=0\iff f(x) \text{ is not defined.}$$  Is there a symbol to mean "undefined"? Would it be correct, or accurate, to write $\nexists f(x)$? The set of limit points of the sequence $1,\frac12,\frac14,\frac34,\frac18,\frac38,\frac58,\frac78,\frac1{16},\frac3{16},\ldots$ Woman planning to visit me from Ukraine to the US applied for a visa and such, claims to have paid for the visa but needs 500 dollars more for the airfare from Ukraine to the US. She says strict rules apply that the airfare cannot be purchased by US person, and must be purchased in Ukraine by person applying for the visa because of terrorist issues, etc..   Is there truth to such? Wubi with 14.10 doesn't work - failed to partition the selected disk I tried to install Ubuntu 14.10 on my computer with Wubi. The installation appeared to work in Windows, and told me to reboot.   After rebooting the Ubuntu installer continued the installation, until it stopped with an error message: Failed to partition the selected disk with the detail This probably happened because are too many primary partitions in the partition table. I just want to write \Sha without ruining everything I realize similar questions have been asked before but I am not satisfied with any of the answers I've seen. I would like to use the Cyrillic letter Ш to denote a particular group in mathematics. Most solutions involve using OT2 or T2A encoding; for example, at . However, this makes the other text in the document look bad.   For example, using the solution above, I get    while I would like to have     The first seems to be shaded strangely and the characters don't seem to align right.  Does anyone know how I can write the character Ш (in math mode) without changing the default font for the rest of the text? Integrable - martingale Suppose $X_{n}^{(1)}$ and $X_{n}^{(2)}$ are martingales w.r.t. a filtration $F_{n}$. I have do determine whether $Z_{n}=e^{X_{n}^{1}+X_{n}^{2}}$ is a martingale, submartingale or supermartingale. I thought that because $X_{n}^{1}+X_{n}^{2}$ is a martingale I can use Jensen to say that $E[Z_{n}|F_{n-1}]\geq e^{E(X_{n}^{(1)}+X_{n}^{(2)}|F_{n-1})}=Z_{n-1}$. But I have to check whether $Z_{n}$ is integrable and I don't know how. I am using QGIS and I created a vector grid on a crop field in order to cut it into plots. I want to save each grid cell into individual polygon shapefiles automatically.  Here is an example of a vector grid I would like to split into 117 shapefiles:    Eventually, I did it manually with the selection tool and "Save as" but it is really time-consuming when there are more than 100 plots to save.    Is there any way to do it faster and more automatically?  Each plot as an attribute named "Plot" that can discriminate against them (basically being id + 1). It's the attribute used here to label them. SBS 2011 - Is Store.exe High Memory Usage Normal? Why is the light in an airplane turned off during take off and landing? Do you need to disavow on [HTTPS SSL] after performing a disavow on [HTTP] I have a client which disavowed a few thousand dirty links from his site profile back in February 2015. Recently the site was switch from HTTP to HTTPS (SSL enforced).   Google recommends that you add all variations to the Google Console (Webmaster Tools).  The site has a total of 4 variations, eg:    http://www.example.com (Previously Preferred) http://example.com https://www.example.com (Now Preferred) https://example.com   Question:  Since technically this is a new property in Google Webmaster Tools, do you need to submit the same disavow file added previously back in 2015? How to find correctly the .bib file? I have a .bib document called References.bib saved in the following directory: C:\Users\dvale\Documents\3_References\References.bib  This file contains this entry: @Article{Ballot2014,   author    = {Ballot, Andreas},   title     = {Diversity of cyanobacteria and cyanotoxins in {Hartbeespoort Dam, South Africa}},   journal   = {Marine and Freshwater Research},   year      = {2014},   volume    = {65},   number    = {2},   pages     = {175--189},   issn      = {1323-1650},   doi       = {10.1071/mf13153}, }  I created a document and cited this reference, however the citation is not appearing, apparently because the .bib file was not found. I'm using biber as bibliographic tool (if is important this information). \documentclass[12pt,a4paper]{article} \usepackage{biblatex} \addbibresource[location=remote]{C:/Users/dvale/Documentos/3_References/References.bib} \begin{document} Example \cite{Ballot2014} \printbibliography \end{document}  When I compile the bibliography (F8 in TeXstudio) the following error appears ERROR - Cannot find 'C:/Users/dvale/Documentos/3_References/References.bib'!  EDIT 1: I use JabRef to create my .bib files with UTF-8 encoding The .blg file has the following information in the notepad [0] Config.pm:312&gt; INFO - This is Biber 2.15 (beta) [0] Config.pm:315&gt; INFO - Logfile is 'MWE.blg' [105] biber-MSWIN64:330&gt; INFO - ===  [127] Biber.pm:415&gt; INFO - Reading 'MWE.bcf' [234] Biber.pm:952&gt; INFO - Found 1 citekeys in bib section 0 [251] Biber.pm:4334&gt; INFO - Processing section 0 [267] Biber.pm:4523&gt; INFO - Looking for bibtex format file 'C:/Users/dvale/Documentos/3_References/References.bib' for section 0 [502] Utils.pm:411&gt; ERROR - Cannot find 'C:/Users/dvale/Documentos/3_References/References.bib'! [502] Biber.pm:132&gt; INFO - ERRORS: 1 R's randomForest can not handle more than 32 levels. What is workaround? R's randomForest package can not handle factor with more than 32 levels. When it is given more than 32 levels, it emits an error message:     Can not handle categorical predictors with more than 32 categories.   But the data I have has several factors. Some of them have 1000+ levels and some of them have 100+. It even has 'state' of united states which is 52.   So, here's my question.   Why is there such limitation? randomForest refuse to run even for the simple case.  &gt; d &lt;- data.frame(x=factor(1:50), y=1:50) &gt; randomForest(y ~ x, data=d)   Error in randomForest.default(m, y, ...) :    Can not handle categorical predictors with more than 32 categories.   If it is simply due to memory limitation, how can scikit learn's randomForeestRegressor run with more than 32 levels? What is the best way to handle this problem? Suppose that I have X1, X2, ..., X50 independent variables and Y is dependent variable. And suppose that X1, X2 and X3 has more than 32 levels. What should I do?  What I'm thinking of is running clustering algorithm for each of X1, X2 and X3 where distance is defined as difference in Y. I'll run three clusterings as there are three problematic variables. And in each clustering, I wish I can find similar levels. And I'll merge them.  How does this sound? How do I escape a single quote in SQL Server? Returning a const reference to an object instead of a copy Count occurrences of each element in a List[List[T]] in Scala