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• subset complete or balance dataset in r

  - by SHRram

  I have a dataset that unequal number of repetition. I want to subset a data by removing those entries that are incomplete (i.e. replication less than maximum). Just small example: set.seed(123) mydt <- data.frame (name= rep ( c("A", "B", "C", "D", "E"), c(1,2,4,4, 3)), var1 = rnorm (14, 3,1), var2 = rnorm (14, 4,1)) mydt …

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• Minimizing MySQL output with Compress() and by concatening results?

  - by johnrl

  Hi all. It is crucial that I transfer the least amount of data possible between server and client. Therefore I thought of using the mysql Compress() function. To get the max compression I also want to concatenate all my results in one large string (or several of max length allowed by MySql), to allow for similar results to be compressed, and then…

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• wp trim function

  - by Juliver Galleto

  Ok i have this code currently. <?php query_posts('category_name=widgets2'); echo "<div id='widgets-wrapper2'><div id='marginwidgets' style='overflow: auto; max- width: 100%; height: 450px; max-height: 100%; margin: 0 auto;'>"; while (have_posts()) : the_post(); echo "<div class='thewidgets2'>"; echo wp_trim_words(…

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• MS SQL: How to get the newest date in a table with several equal keys

  - by Qohelet

  Unfortunately my knowledge related to statements like "group by" and "having" is quite limited, so hopefully you can help me: I have a view -here's an excerpt- (if we have some Europeans here - it's v021 of Winline/Mesonic): ID | Artikelbezeichnung1 | Bez2 | mesoyear…

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• Foreign-key-like merge in R

  - by skyl

  I'm merging a bunch of csv with 1 row per id/pk/seqn. > full = merge(demo, lab13am, by="seqn", all=TRUE) > full = merge(full, cdq, by="seqn", all=TRUE) > full = merge(full, mcq, by="seqn", all=TRUE) > full = merge(full, cfq, by="seqn", all=TRUE) > full = merge(full, diq, by="seqn",…

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• Help optimizing a query with 16 subqueries

  - by Webnet

  I have indexes/primaries on all appropriate ID fields for each type. I'm wondering though how I could make this more efficient. It takes a while to load the page with only 15,000 rows and that'll quickly grow to 500k. The $whereSql variable simply has a few more parameters for the main…

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• Cannot determine why pointer variable will not address elements in a string in this program?

  - by Smith Will Suffice

  I am attempting to utilize a pointer variable to access elements of a string and there are issues with my code generating a compilation error: #include <stdio.h> #define MAX 29 char arrayI[250]; char *ptr; int main(void) { ptr = arrayI; puts("Enter string to arrayI: up…

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• Remove .img css from prepended div

  - by Ivan Schrecklich

  OK as the title says I've got a div which is prepended and dynamically loaded. The problem I have is that I can't split the css on this one as it parses also whole strings. The usage is like that: I've got a @username somewhere in the string. If the user hovers it a div with…

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• Adding Unobtrusive Validation To MVCContrib Fluent Html

  - by srkirkland

  ASP.NET MVC 3 includes a new unobtrusive validation strategy that utilizes HTML5 data-* attributes to decorate form elements.  Using a combination of jQuery validation and an unobtrusive validation adapter script that comes with MVC 3, those attributes are then turned…

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• LVM mirror attempt results in "Insufficient free space"

  - by MattK

  Attempting to add a disk to mirror an LVM volume on CentOS 7 always fails with "Insufficient free space: 1 extents needed, but only 0 available". Having searched for a solution, I have tried specifying disks, multiple logging options, adding 3rd log partition, but have not…

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• Uwsgi starts from root but not as a service

  - by vittore

  I have nginx + uwsgi setup for flask website. thats my nginx server { listen 80; server_name _; location /static/ { alias /var/www/site/app/static/; } location / { uwsgi_pass 127.0.0.1:5080; include uwsgi_params; } } And here is my uwsgi config.xml …

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• How do you get - Better than 1024x768 Driver for 64 bit Dell PowerEdge Server

  - by tinyJoe

  How do you get better than 1024x768 resolution? Just installed MS Server 2008 64bit on a Dell PowerEdge 64bit box (works OK - Previously running MS Server 2003 32bit) After install - gives a a max resultion of 1024x768 I want to change the reslution to 1280x1024…

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• Windows 7 extremely slow login, exchange performance, printer enumeration, etc...

  - by Jeff

  Background: I have a fresh copy of Windows 7 Professional x64 on a Dell Latitude E6500. The laptop has 8GB RAM, 250GB drive, and all Intel peripherals (net/wifi/graphics). All available Windows updates, as well as hardware drivers are installed. The IT folks where…

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• DHCP "no answer" on CentOS 6.4

  - by Kev

  I installed a DHCP server (yum install dhcp) and this is my conf: # create new # specify domain name option domain-name "mydomain.name"; # specify DNS's hostname or IP address option domain-name-servers 10.0.1.1, 10.0.1.2; option ntp-servers 10.0.1.1, 10.0.1.2; …

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• Disk is spinning down each minute, unable to disable it

  - by lzap

  I played with spindown and APM settings of my Samsung discs and now they spin down every minute. I want to disable it, but it seems it does not accept any of the spindown time or APM values. Nothing works, it's all the same. Please help what values should be…

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• mailman web UI on localhost with apache2

  - by Thufir

  I'm interested only in running mailman on localhost and would like access to the web interface, but am getting 404: root@dur:~# root@dur:~# ln -s /etc/mailman/apache.conf /etc/apache2/sites-enabled/mailman -v `/etc/apache2/sites-enabled/mailman' ->…

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• Cannot exclude a path from basic auth when using a front controller script

  - by Adam Monsen

  I have a small PHP/Apache2 web application wherein I'd like to do two seemingly incompatible operations: Route all requests through a single PHP script (a "front controller", if you will) Secure everything except API calls with HTTP basic…

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• Any reason not to disable Windows kernel paging?

  - by Nathaniel

  So I'm planning on eventually going to 2 GB (mobo max) RAM from 1 GB, and I want to disable kernel paging once I do, because I've heard it can give a performance boost (and that I believe). Any reason not to do it or any general thoughts…

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• blur a moving area in a movie on osx

  - by Stefano Borini

  Note, there's already a question on this regard, but it's totally useless. I need to blur, or put a small opaque mask to a moving object on a movie I took, I am using mac osx. Clearly, I don't want to shell out a lot of money for…

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• Apache memory leak with Subversion server

  - by bruce grissom

  Does anyone know of a way to fix the Apache memory leak in relation to Subversion Server? We have a windows server 2003 machine running Apache to host Subversion. From day one, we have had memory leak issues and have not found a…

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• VMWare-Mount not recognizing virtual disks

  - by user36175

  I have two disks as .vmdk files, and four as .vdi files. I can boot virtual machines on them with Sun xMV VirtualBox, and they work just fine. However, I want to mount them on my local computer so I can read some files off of…

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• What's a good 3D modelling editor, other than Blender, that can be used within Unity 3D?

  - by Arc

  Unity 3D is an amazing tool for quickly creating good-looking, fun games. Unfortunately, its not intended to be used for actually designing your characters or complex levels. Blender is the general low-budget answer for…

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• Garbled text in Screen [closed]

  - by Prabin Dahal

  The graphical Interface in my system is garbled with some text. At the beginning I thought it was due to java and tomcat that I installed. But after removing java and tomcat, it is still the same. I am using ubuntu…

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• Android emulator performance on linux

  - by Rado

  I installed the android SDK and eclipse plugin on my laptop, but I was surprised to find out that the emulator eats up 100% of one of my cpu cores. I have exactly the same setup on a desktop machine that does not…

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• How Do I Cache Just the Homepage with Apache .htaccess?

  - by Volomike

  This config is close... <FilesMatch "\.(php)$"> Header set Cache-Control "max-age=7200, must-revalidate" </FilesMatch> ...but it does all php pages, not just the home page like I want. Basically…

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