Why can't I install mysql-server in standard way?
dpkg: error processing package mysql-server (--configure)
Remove a child with a specific attribute, in SimpleXML for PHP I have several identical elements with different attributes that I'm accessing with SimpleXML:  &lt;data&gt;     &lt;seg id="A1"/&gt;     &lt;seg id="A5"/&gt;     &lt;seg id="A12"/&gt;     &lt;seg id="A29"/&gt;     &lt;seg id="A30"/&gt; &lt;/data&gt;   I need to remove a specific seg element, with an id of "A12", how can I do this?  I've tried looping through the seg elements and unsetting the specific one, but this doesn't work, the elements remain.  foreach($doc-&gt;seg as $seg) {     if($seg['id'] == 'A12')     {         unset($seg);     } } Will it be possible to update Windows XP after April 2014? Find out which application listens to specific key bindings? Is there an application to know which key is bound by which process and therefore not usable in another application? How to access the Keyboard Layout Options in 13.10+ Adding meta values to permalink I have publications and I want to simply add year and month to the permalink. Currently the year and month of publication is added to the post as a meta value. I've set up publications as a custom post type and created taxonomy for the specific title of the publication. I would like the permalink to be:  publications/publication-title/year-published/month-published/name-of-post  I simply want to add the meta values for the publication year and month to the permalink.   So far, I've been able to pull the year and month published and add it to the url but unfortunately I keep getting a 404 when I try to access posts. I think I'm taking a wrong turn with one of my steps below ...  Any help would be appreciated.  These are the steps I did in the following order:   Since I was adding publication-year and publication-month to the url, I was reading that I had to make WordPress aware of these custom querystring variables. I added the following functions to register these custom variables:  function pubyear_register_rewrite_tag() {       add_rewrite_tag( '%pubyear%', '([0-9]{4})');   }    add_action( 'init', 'pubyear_register_rewrite_tag');  function pubmonth_register_rewrite_tag() {      add_rewrite_tag( '%pubmonth%', '([0-9]{2}');   }    add_action( 'init', 'pubmonth_register_rewrite_tag');    2) Added the year and month to the permalink structure:  add_filter('post_type_link', 'pub_term_permalink', 10, 4);  function pub_term_permalink($permalink, $post, $leavename, $sample) {     if ( false !== strpos( $permalink, '%publication-title%/%pubyear%/%pubmonth%' ) ) {       //get the publication-title      $publicationtype = get_the_terms( $post-&gt;ID, 'publication-type' );       //get the year of the publication      $pubyear = date('Y', get_post_meta($post-&gt;ID, 'pub_date', true));       //get the month of the publication      $pubmonth = date('m', get_post_meta($post-&gt;ID, 'pub_date', true));       $rewritecode = array(          '%publication-type%',          '%pubyear%',          '%pubmonth%',          $leavename? '' : '%postname%',      );       $rewritereplace = array(          array_pop($publicationtype)-&gt;slug,          $pubyear,          $pubmonth,          $post-&gt;post_name      );       $permalink = str_replace($rewritecode, $rewritereplace, $permalink);       }     return $permalink; }   3) Add rewrite rules:  function pub_add_rewrite_rules() {       add_rewrite_rule(  '^([^/]*)/([0-9]{4})/([0-9]{2})/([^/]+)?', 'publications/index.php?pagename=$matches[3]', 'top' );   }    add_action( 'init', 'pub_add_rewrite_rules' );   4) Made sure the custom post type is registered and includes this rewrite array:  'rewrite' =&gt; array     (             'slug' =&gt; 'publications/%publication-type%/%pubyear%/%pubmonth%',     'with_front' =&gt; false          ), I've had a promising Skype interview with a great professor from a top-level university in US. Our research interests are closely related and he encouraged me to apply BUT he says that all decisions are finally made by admission committee there.  The question is "Is a professor in such a high-level university able to affect admission committee if he really wants a student?" or "Does admission committee decision-making process become easier if a professor really wants an applicant?"  The main point is the difference between my transcript (which is a real catastrophe!) and my research background which is pretty good so the professor's decision might be different from admission committee. How to enable hibernation? Automate Fixed Width Page, length > some minimum length, but only as long as needed I am trying to automate the solution proposed by egreg to  by hooking into \begin{document} and \end{document}.  So, egreg's solution works fine:  \documentclass{article} \def\MinimumPaperHeight{12cm} \usepackage{geometry} \geometry{paperwidth=\MinimumPaperHeight,paperheight=\maxdimen,margin=1cm} \usepackage{lipsum}  \begin{document} \setbox0=\vbox{ \lipsum[1-6] } \dimen0=\dp0 \pdfpageheight=\dimexpr\ht0+2cm\relax \ifdim\pdfpageheight&lt;\MinimumPaperHeight \pdfpageheight=\MinimumPaperHeight \fi \unvbox0\kern-\dimen0 \end{document}   But can't seem to get this to work:  \documentclass{article} \def\MinimumPaperHeight{12cm} \usepackage{geometry} \geometry{paperwidth=\MinimumPaperHeight,paperheight=\maxdimen,margin=1cm} \usepackage{lipsum} \usepackage{environ}  \NewEnviron{MyBox}{     \setbox0=\vbox{\BODY}% }{%     \dimen0=\dp0%     \pdfpageheight=\dimexpr\ht0+2cm\relax%     \ifdim\pdfpageheight&lt;\MinimumPaperHeight \pdfpageheight=\MinimumPaperHeight \fi%     \unvbox0\kern-\dimen0% }  \AtBeginDocument{\begin{MyBox}} \AtEndDocument{\end{MyBox}}  \begin{document} \lipsum[1-6] \end{document}   Hooking into \AtBeginDocument is per this solution on . I just got a short algorithm on my page, and it keeps getting aligned at the center of the page. But I want to have it aligned at the top, what do I have to do? Using File Geodatabase coded domain with ArcGIS Online? I created a File GDB and set up a domain, and the domain was assigned to a field in a feature class. The domain behaves as expected on ArcGIS Desktop (dropdown list when editing the content of that field).  But if I zip up the FGDB and upload to ArcGIS Online to created a feature layer and edit the layer online, there is no dropdown when editing.  I don't see any additional step in this tutorial, other than a different mechanism of getting data to ArcGIS Online. I don't think I can do it the same way in ArcGIS 10.0:   Anyone has any idea what's going on? "Actually" vs "really" I think the title says it. Did expansion of the universe steal the energy somehow? Configuring dpkg stops processing when calling an HTTP request to Adobe Flash Player How to Query all opportunities ids from account I write a sample query to fetch account Ids from cases of a particular record type.Then i wrote another sample query parent to child relationship to fetch opportunity ids from accounts.  My sample code  List&lt;Case&gt; c=new List&lt;Case&gt;(); c=[Select Id,accountId from case where RecordTypeId = '01290000000sF3L']; List&lt;Id&gt; accountIds= new List&lt;Id&gt;(); List&lt;Account&gt; accounts=new List&lt;Account&gt;(); List&lt;Opportunity&gt; opps=new List&lt;Opportunity&gt;(); for(Case cl:c)  { accountIds.add(cl.accountId); } accounts=[Select Id,name,(select Id,name from opportunities) from account        where Id in:accountIds]; System.debug('Data in accounts '+accounts);   But my issue is how to get opportunity id from above Soql accounts means how to add those opportunity id's to the list.  for(Account ao:accounts) { //How to fetch Opportunity ids from above account list. } Turning separate lines into a comma separated list with quoted entries I have the following data (a list of R packages parsed from a Rmarkdown file), that I want to turn into a list I can pass to R to install:  d3heatmap data.table ggplot2 htmltools htmlwidgets metricsgraphics networkD3 plotly reshape2 scales stringr   I want to turn the list into a list of the form:  'd3heatmap', 'data.table', 'ggplot2', 'htmltools', 'htmlwidgets', 'metricsgraphics', 'networkD3', 'plotly', 'reshape2', 'scales', 'stringr'   I currently have a bash pipeline that goes from the raw file to the list above:  grep 'library(' Presentation.Rmd \ | grep -v '#' \ | cut -f2 -d\( \ | tr -d ')'  \ | sort | uniq   I want to add a step on to turn the new lines into the comma separated list. I've tried adding tr '\n' '","', which fails. I've also tried a number of the following Stack Overflow answers, which also fail:      This produces library(stringr)))phics) as the result.      This produces ,% as the result.      This answer (with the -i flag removed), produces output identical to the input. How does the Rectified Linear Unit (ReLU) activation function produce non-linear interaction of its inputs? When used as an activation function in deep neural networks The ReLU function outperforms other non-linear functions like tanh or sigmoid . In my understanding the whole purpose of an activation function is to let the weighted inputs to a neuron interact non-linearly. For example, when using $sin(z)$ as the activation, the output of a two input neuron would be:  $$ sin(w_0+w_1*x_1+w_2*x_2) $$   which would approximate the function  $$  (w_0+w_1*x_1+w_2*x_2) - {(w_0+w_1*x_1+w_2*x_2)^3 \over 6} + {(w_0+w_1*x_1+w_2*x_2)^5 \over 120} $$  and contain all kinds of combinations of different powers of the features  $x_1$ and $x_2$.   Although the ReLU is also technically a non-linear function, I don't see how it can produce non-linear terms like the $sin(), tanh()$ and other activations do.  Edit: Although my question is similar to , I'd like to know how even a cascade of ReLUs are able to approximate such non-linear terms. Software for Calendar Designing Which is the best software of making a calendar. Coreldraw or Illustrator? What is the standard size of calendar? And is there any inbuilt format or template fro making calendar in both Corel or Illustrator? Also, even though Photoshop is a rasterised software but still wanted to ask can it be designed in Photoshop also? Calculating MEAN and STANDARD DEVIATION confussed British placement of punctuation relative to inverted commas Installing Cygwin packages from the command-line