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• 2-way anova on unbalanced dataset

  - by mortalitysequence

  Is aov appropriate for unbalanced datasets. According to help ...provides a wrapper to lm for fitting linear models to balanced or unbalanced experimental designs. But later on it says aov is designed for balanced designs, and the results can be hard to interpret without balance. How should I perform a 2-way anova on an unbalanced dataset in R? I would like to reproduce the different results for type I and type III sum of squares of SAS output (when using proc glm). I remember we were using type III sum of squares for unbalanced datasets. Thank you in advance.

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• Access to nested methods when DSL

  - by Vyacheslav Loginov

  class Warcraft def initialize &block instance_eval &block end def method_missing name, *args, &block instance_variable_set("@#{name}".to_sym, args[0]) self.class.send(:define_method, name, proc { instance_variable_get("@#{name}")}) end def game &block @game = Game.new &block end class Game def initialize &block instance_eval &block end def method_missing name, *args, &block instance_variable_set("@#{name}".to_sym, args[0]) self.class.send(:define_method, name, proc { instance_variable_get("@#{name}")}) end end end warcraft = Warcraft.new do name "Warcraft III" battle_net :iccup game do side :sentinels hero "Furion" rune_appear_every 2 end end puts warcraft.inspect # => #<Warcraft:0x00000000be3e80 @name="Warcraft III", @battle_net=:iccup, @game=#<Warcraft::Game:0x000000009c6c38 @side=:sentinels, @hero="Furion", @rune_appear_every=2>> How to access nested methods? puts warcraft.battle_net # => iccup puts warcraft.side #=> #<Proc:[email protected]:9 (lambda)> puts warcraft.game #=> dsl.rb:18:in `instance_eval': block not supplied (ArgumentError) puts warcraft.game.side #=> dsl.rb:18:in `instance_eval': block not supplied (ArgumentError)

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• What is the use of Method Overloading in Java when it is achieved by changing the sequence of parameters in the argument list?

  - by MediumOne

  I was reading a Java training manual and it said that Method Overloading in Java can be achieved by having a different argument list. It also said that the argument list could differ in (i). Number of parameters (ii). Datatype of parameters (iii). Sequence of parameters My concern is about (iii). What is the use of trying to overload a method just by changing the sequence of parameters? I am unable to think of any benefits by this way.

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• Don’t miss rare Venus transit across Sun on June 5th. Once in a life time event.

  - by Gopinath

  Space lovers here is a rare event you don’t want to miss. On June 5th or 6th of 2012,depending on which part of the globe you live, the planet Venus will pass across Sun and it will not happen again until 2117. During the six hour long spectacular transit you can see the shadow of Venus cross Sun. The transit of Venus occurs in pairs eight years apart, with the previous one taking place in 2004. The next pair of transits occurs after 105.5 & 121.5 years later. The best place to watch the event would be a planetarium nearby with telescope facility. If not you watch it directly but must protect your eyes at all times with proper solar filters. Where can we see the transit? The transit of Venus is going to be clearly visible in Europe, Asia, United States and some part of Australia. Americans will be able to see transit in the evening of Tuesday, June 5, 2012. Eurasians and Africans can see the transit in the morning of June 6, 2012. At what time the event occurs? The principal events occurring during a transit are conveniently characterized by contacts, analogous to the contacts of an annular solar eclipse. The transit begins with contact I, the instant the planet’s disk is externally tangent to the Sun. Shortly after contact I, the planet can be seen as a small notch along the solar limb. The entire disk of the planet is first seen at contact II when the planet is internally tangent to the Sun. Over the course of several hours, the silhouetted planet slowly traverses the solar disk. At contact III, the planet reaches the opposite limb and once again is internally tangent to the Sun. Finally, the transit ends at contact IV when the planet’s limb is externally tangent to the Sun. Event Universal Time Contact I 22:09:38 Contact II 22:27:34 Greatest 01:29:36 Contact III 04:31:39 Contact IV 04:49:35   Transit of Venus animation Here is a nice video animation on the transit of Venus Map courtesy of Steven van Roode, source NASA

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• Start Developing a Multiplayer Online Client to host existing video game

  - by Rami.Shareef

  GameRanger Garena ... etc I'm planning to start developing a small online client like these mentioned above (for friends usage), where the player that hosts the game is the server him self. was looking through the web for something to start with, but couldnt find any resources for this request!. Planning to do it with .NET technology, I have a good decent development experience. Any good resources to start with? the game I'm aiming to support is WarCraft III The frozen throne as start

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• Working with Spatial Data Part IV - Developing a Geospatial Dashboard (GIS)

  This article leverages the examples and concepts explained in the third part of this spatial data series which develops a "BI-Satellite" app ( Reporting spatial data with SSRS 2008 R2 and Reports Builder 3.0 Part-III ... [Read Full Article]

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• Libvirt-php Creating Domain

  - by Alee

  Could you tell me how to create a new domain? From PHP API Reference guide: http://libvirt.org/php/api-reference.html I have seen these functions: (i) libvirt_image_create($conn, $name, $size, $format) (ii) libvirt_domain_new($conn, $name, $arch, $memMB, $maxmemMB, $vcpus, $iso_image, $disks, $networks, $flags) (iii) libvirt_domain_create($res) (iv) libvirt_domain_create_xml($conn, $xml) The problem I am facing is that i dont know the steps to create a new domain. Either I have to create a new image first using libvirt_image_create .... or something else.

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• Commands in WPF - Part IV

  In Part III of this article series; we have seen how Input Binding is helpful. In this article we will explore on Command Objects and Command Types.

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• Mount: "The disk drive for UUID=<uuid for /> is not ready yet or not present."

  - by searchfgold6789

  I recently did the update from 12.04 to 12.10 on my old Dell Latitude CPx laptop (Pentium III). When I rebooted I got this error message with no response from keyboard input. Below it is says Wait to continue, press S to skip mounting, or M for manual recovery. I also see occasional errors pop up on the screen from mountall and Plymouth. I can still get into Recovery Mode. Can anyone shed some light on the matter?

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• Linuxcare Returns

  <b>Cyber Cynic:</b> "Poor top management decisions led Linuxcare to lose first its way, and, then, years later, to quietly vanish. Now, one of its founders, Arthur F. Tyde III, has brought Linuxcare back from the grave and made it ready for the 21st century."

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• How to execute msdb.dbo.sp_start_job from a stored procedure in user database in sql server 2005

  - by Ram

  Hi Everyone, I am trying to execute a msdb.dbo.sp_start_Job from MyDB.dbo.MyStoredProc in order to execute MyJob 1) I Know that if i give the user a SqlAgentUser role he will be able to run the jobs that he owns (BUT THIS IS WHAT I OBSERVED : THE USER WAS ABLE TO START/STOP/RESTART THE SQL AGENT SO I DO NOT WANT TO GO THIS ROUTE) - Let me know if i am wrong , but i do not understand why would such a under privileged user be able to start/stop agents . 2)I know that if i give execute permissions on executing user to msdb.dbo.Sp_Start_job and Enable Ownership chaining or enable Trustworthy on the user database it would work (BUT I DO NOT WANT TO ENABLE OWNERSHIP CHAINING NOR TRUSTWORTHY ON THE USER DATABASE) 3)I this this can be done by code signing User Database i)create a stored proc MyDB.dbo.MyStoredProc ii)Create a certificae job_exec iii)sign MyDB.dbo.MyStoredProc with certificate job_exec iv)export certificate msdb i)Import Certificate ii)create a derived user from this certificate iii)grant authenticate for this derived user iv)grant execute on msdb.dbo.sp_start_job to the derived user v)grant execute on msdb.dbo.sp_start_job to the user executing the MyDB.dbo.MyStoredProc but i tried it and it did not work for me -i dont know which piece i am missing or doing wrong so please provide me with a simple example (with scripts) for executing msdb.dbo.sp_start_job from user stored prod MyDB.dbo.MyStoredProc using code signing Many Many Many Thanks in Advance Thanks Ram

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• What Should PASS Be?

  - by andyleonard

  Introduction As he does so well, Andy Warren ( Blog | @sqlAndy ) has issued a challenge to the community: What Should PASS Be? I'm sure lots of people have responded already, but I've been struck by two: Grant Fritchey's ( Blog | @GFritchey ) What Should PASS Be? and Robert Matthew Cook's ( Blog | @sqlmashup ) [blog] What Should PASS Be? #sqlpass . They're... Different I don't know Robert well. That doesn't mean there's something wrong with Robert. It simply means he's one of hundreds of the cool...(read more)

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• Sun2Oracle: Hub City Media Webcast Reminder - Thursday, September 13, 2012

  - by Darin Pendergraft

  Our Sun2Oracle webcast featuring Steve Giovanetti from Hub City Media is this Thursday, September 13th at 10:00 am PST.  If you haven't registered yet, there is still time: Register Here. Scott Bonell, Sr. Director of Product Management will be talking to Steve about their recent project to upgrade a large University from Sun DSEE Directory to Oracle Unified Directory.  Scott and Steve will talk through details of the project, from planning through implementation. In addition to this webcast, Steve Giovanetti will also be participating in two sessions at Oracle OpenWorld 2012: CON9465 - Next-Generation Directory: Oracle Unified Directory  Etienne Remillon, Principal Product Manager, Oracle  Steve Giovanetti, CTO Hub City Media  Warren Leung, Sr. Architect, UCLA  Tuesday, Oct 2, 5:00 PM – 6:00 PM  Moscone West – 3008 CON5749 - Solutions for Migration of Oracle Waveset to Oracle Identity Manager Steve Giovanetti, CTO Hub City Media Kevin Moulton, Senior Sales Consulting  Manager, Oracle Thursday, Oct 4, 11:15 AM - 12:15 PM Moscone West - 3008

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• Google I/O 2012 - Developing for a Global Audience: Tools for Localization and Internationalization

  Google I/O 2012 - Developing for a Global Audience: Tools for Localization and Internationalization C. Andrew Warren, Manish Bhargava As internet and mobile penetration continue to rise, developers face a unique and challenging opportunity: billions of new users speaking dozens of distinct languages. English has often been considered a lingua franca for apps and websites, but fewer than half of the current online population now speaks it - success in the global web will require a more nimble approach. This tech talk will explore some of the tips, tricks, and tools that can make internationalization (i18n) and localization (L10n) simpler for web and mobile app developers (with a focus on Chrome, Android, and App Engine apps). For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 9 0 ratings Time: 50:24 More in Science & Technology

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• AVConv increases song duration when converting MP3

  - by chauffch

  I am struggling with the following issue. I want to convert an MP3 ADTS into pure a MP3. I am using AVConv on Ubuntu 12.10. The outcome is a file that has the same size, but the duration is now longer. $ ls -l total 6436 -rw-r--r-- 1 teuf teuf 6586514 nov. 25 09:25 Blindsided_Bon_Iver.mpga $ file Blindsided_Bon_Iver.mpga Blindsided_Bon_Iver.mpga: MPEG ADTS, layer III, v1, 160 kbps, 44.1 kHz, JntStereo $ avconv -i Blindsided_Bon_Iver.mpga -c copy Blindsided_Bon_Iver.mp3 avconv version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on Nov 6 2012 16:50:25 with gcc 4.6.3 [mp3 @ 0x8c6e240] max_analyze_duration reached Input #0, mp3, from 'Blindsided_Bon_Iver.mpga': Duration: 00:05:29.29, start: 0.000000, bitrate: 160 kb/s Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 160 kb/s Output #0, mp3, to 'Blindsided_Bon_Iver.mp3': Metadata: TSSE : Lavf53.21.0 Stream #0.0: Audio: libmp3lame, 44100 Hz, stereo, 160 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Press ctrl-c to stop encoding size= 6432kB time=329.30 bitrate= 160.0kbits/s video:0kB audio:6432kB global headers:0kB muxing overhead 0.002080% $ ls -l total 12868 -rw-rw-r-- 1 teuf teuf 6586129 nov. 27 22:26 Blindsided_Bon_Iver.mp3 -rw-r--r-- 1 teuf teuf 6586514 nov. 25 09:25 Blindsided_Bon_Iver.mpga $ file Blindsided_Bon_Iver.mp3 Blindsided_Bon_Iver.mp3: Audio file with ID3 version 2.4.0, contains: MPEG ADTS, layer III, v1, 32 kbps, 44.1 kHz, Stereo Amarok shows the new file has a duration of 25:27 and has a lot of silence. Am I using an incorrect option? Is it a bug in AVConv? Any ideas how to fix it?

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• What can I do with a home server?

  - by Joel Coehoorn

  I have an old 700 Mhz Pentium III at home running Windows 2000 Server, with a home router set up to pass incoming requests to it and a DynDNS account set up so it's easy to find. Right now I'm using it for a number of things: Shared folders + backup inside the home network Shared Printer inside the home network Domain Controller, just because I feel like it and because it's useful to me as practice to keep those "enterprise" administration skills. Web Server FTP remote access for my files. I abandoned this for security reasons, but it's still worth leaving visible. Remote Desktop in to the home network (thinking about adding VPN service) SVN repository MySQL - Will be moving to SQL Server 2008 Standard soon. After I upgrade my wife's laptop from home to pro later this year it will also become a domain controller It's the only place I still have access to Internet Explorer 6 any more without setting up a new virtual machine, so I use it for testing code with that browser. The question is: What else could I be doing with this machine? Update Additional ideas based on the suggestions: Media Server/DVR Build server PBX SSH Proxy Server Continuous Integration Server Personal OpenID Provider Update2 Just a note that this server was recently upgraded to an Atom330 with 2 GB ram and bigger hard drive. For all that's slow for a "modern" cpu, it should still be much faster than the old Pentium III and the expected power savings should make the upgrade essentially free over the course of the next year or two. Also, it's now running Windows Server 2008.

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• 3rd Annual South Florida SQL Saturday - August 13th!

  - by ScottKlein

  The 3rd annual South Florida SQL Saturday event will be help August 13th, 2011 at Nova Southeastern University in Davie, FL. This is a change in venue from last year as DeVry is in the middle of a major remodling project. We has almost 450 last year, and we expect to have over 500 this year with great speakers such as Andy Warren, Herve Roggero, and more! As always, we our goal is to feed you well, so we are shooting for some hot lunch food this year. We are working on that now and will update you as soon as we firm it up. One of the things we will be trying this year is 90-100 minute sessions on a couple of tracks. We strongly feel that several topics are just getting warmed up in 45 minutes, so we are going to experiment with 90-100 minute sessions on some of the BI topics. We would love to see you there!

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• Javascript For-Each Loop Syntax Help

  - by radrew

  Hey guys, I've got a complex block of PHP/Javascript that isn't functioning. I'm trying to manipulate a form that contains 4 dropdown select lists. Each dropdown is dependent upon what was selected in the one above it. I apologize for the huge amount of code, but I was hoping someone might be able to spot a syntax error or something else simple that I'm missing. The form in question is located in the right sidebar of the following site: http://www.buyautocovers.com $Manufacturer_array[] = array('id' => 'all', 'text' => $this->__('Choose Make')); $Model_array[] = array('id' = 'all', 'text' = $this-('Choose Model')); $Number_array[] = array('id' = 'all', 'text' = $this-('Choose Year')); $Body_array[] = array('id' = 'all', 'text' = $this-__('Choose Body Type')); $javascript = ' // var a = new Array(); var b = new Array(); var c = new Array(); var d = new Array();'; $M_a = array(); foreach ($rows as $r) { if (!isset($M_a [$r['manufacturer']])) $Manufacturer_array[] = array('id' = $r['manufacturer'], 'text' = $r['manufacturer']); $M_a [$r['manufacturer']][$r['model']][$r['number']][$r['body']] = 1; } $i = 0; foreach ($M_a as $k =$v){ $javascript .= 'a['.$i.']="'.$k.'";b['.$i.'];c['.$i.'];=new Array('; $ii = 0; $s = ''; foreach ($M_a[$k] as $kk =$vv){ $javascript .= ($ii != 0 ? ',' : '').'"'.$kk.'"'; $ss = ''; $iii = 0; foreach ($M_a[$k][$kk] as $kkk = $vvv){ $javascript .= ($iii != 0 ? ',' : '').'"'.$kkk.'"'; $sss = ''; $iiii = 0; foreach ($M_a[$k][$kk][$kkk] as $kkkk = $vvvv){ $sss .= ($iiii != 0 ? ',' : '').'"'.$kkkk.'"'; $iiii++; } $ss .= 'd['.$i.']['.$ii.']['.$iii.']=new Array('.$sss.');'; $iii++; } $s .= 'd['.$i.']['.$ii.']=new Array('.$ss.');'; $ii++; } $javascript .= ');d['.$i.']=new Array();'.$s; $i++; } $javascript .= ' function pop_model(){ var o ="' . $this-('Choose Model') . '"; var sv = $(\'mmn_manufacturer\').value; if(sv != "all"){ var v = a.length; while(v--) if(sv == a[v]) break; for(var i = 0; i < b[v].length; i++) o+=""+b[v][i]+""; } o+=""; $(\'model_select\').innerHTML= o; $(\'number_select\').innerHTML= "' . $this-('Choose Year') . '"; } function pop_number(){ var o ="' . $this-('Choose Year') . '"; var sv = $(\'mmn_manufacturer\').value; if(sv != "all"){ var v = a.length; while(v--) if(sv == a[v]) break; var sv2 = $(\'mmn_model\').value; if(sv2 != "all"){ var v2 = b[v].length; while(v2--) if(sv2 == b[v][v2]) break; for(var i = 0; i < c[v][v2].length; i++) o+=""+c[v][v2][i]+""; } } o+=""; $(\'number_select\').innerHTML= o; $(\'body_select\').innerHTML= "' . $this-('Choose Body Type') . '"; } function pop_body(){ var o ="' . $this-__('Choose Body Type') . '"; var sv = $(\'mmn_manufacturer\').value; if(sv != "all"){ var v = a.length; while(v--) if(sv == a[v]) break; var sv2 = $(\'mmn_model\').value; if(sv2 != "all"){ var v2 = b[v].length; while(v2--) if(sv2 == b[v][v2]) break; var sv3 = $(\'mmn_number\').value; if(sv3 != "all"){ var v3 = c[v].length; while(v3--) if(sv3 == b[v]c[v2][v3]) break; for(var i = 0; i < d[v]c[v2][v3].length; i++) o+=""+d[v]c[v2][v3][i]+""; } } } o+=""; $(\'number_select\').innerHTML= o; } //]] '; $expire = time()+60*60*24*90; if (isset($_GET['Manufacturer'])){ setcookie("Manufacturer_selected", $_GET['Manufacturer'], $expire,'/'); if ($_GET['Manufacturer'] != 'all') $Manufacturer_selected_var = $_GET['Manufacturer']; } elseif (isset($_COOKIE['Manufacturer_selected']) && $_COOKIE['Manufacturer_selected'] != 'all') $Manufacturer_selected_var = $_COOKIE['Manufacturer_selected']; if (isset($_GET['Model'])){ setcookie("Model_selected", $_GET['Model'], $expire,'/'); if ($_GET['Model'] != 'all') $Model_selected_var = $_GET['Model']; } elseif (isset($_COOKIE['Model_selected']) && $_COOKIE['Model_selected'] != 'all') $Model_selected_var = $_COOKIE['Model_selected']; if (isset($_GET['Number'])){ setcookie("Number_selected", $_GET['Number'], $expire,'/'); if ($_GET['Number'] != 'all') $Number_selected_var = $_GET['Number']; } elseif (isset($_COOKIE['Number_selected']) && $_COOKIE['Number_selected'] != 'all') $Number_selected_var = $_COOKIE['Number_selected']; if (isset($_GET['Body'])){ setcookie("Body_selected", $_GET['Body'], $expire,'/'); if ($_GET['Body'] != 'all') $Body_selected_var = $_GET['Body']; } elseif (isset($_COOKIE['Body_selected']) && $_COOKIE['Body_selected'] != 'all') $Body_selected_var = $_COOKIE['Body_selected']; if (isset($Manufacturer_selected_var) && isset($M_a[$Manufacturer_selected_var])) foreach ($M_a[$Manufacturer_selected_var] as $k => $v) $Model_array[] = array('id' = $k, 'text' = $k); if (isset($Manufacturer_selected_var) && isset($Model_selected_var) && isset($M_a[$Manufacturer_selected_var][$Model_selected_var])) foreach ($M_a[$Manufacturer_selected_var][$Model_selected_var] as $k = $v) $Number_array[] = array('id' = $k, 'text' = $k); if (isset($Manufacturer_selected_var) && isset($Model_selected_var) && isset($Number_selected_var) && isset($M_a[$Manufacturer_selected_var][$Model_selected_var][$Number_selected_var])) foreach ($M_a[$Manufacturer_selected_var][$Model_selected_var][$Number_selected_var] as $k = $v) $Body_array[] = array('id' = $k, 'text' = $k); echo $javascript;

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• question about books

  - by davit-datuashvili

  i have question how good is this book? http://www.amazon.com/Concrete-Mathematics-Foundation-Computer-Science/dp/0201558025/ ? and can anybody advise good books about bit manipulations? for example how good is this book? http://www.amazon.com/Hackers-Delight-Henry-S-Warren/dp/0201914654/

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• Silverlight Cream for March 30, 2010 -- #825

  - by Dave Campbell

  In this Issue: Jeremy Likness, Tim Greenfield, Tim Heuer, ondrejsv, XAML Ninja, Nikhil Kothari, Sergey Barskiy, Shawn Oster, smartyP, Christian Schormann(-2-), and John Papa And Glenn Block. Shoutouts: Victor Gaudioso produced a RefCard for DZone: Getting Started with Silverlight and Expression Blend Way to go Victor... it looks great! Gavin Wignall announced Metia launch FourSquare and Bing maps mash up – called Near.me Cheryl Simmons talks about VS2010 and the design surface: Changing Templates with the Silverlight Designer (and seeing the changes immediately) Michael S. Scherotter posted that New York Times Silverlight Kit Updated for Windows Phone 7 Series Jaime Rodriguez posted about 2 free chapters in his new book (with Yochay Kiriaty): A Journey Into Silverlight On Windows Phone -Via Learning WIndows PHone Programming Did you know there was "MSDN Radio"?? Tim Heuer posted follow-up answers to this morning's show: MSDN Radio follow-up answers: Prism for Silverlight, DomainServices and relationships Michael Klucher posted a great set of links for WP7 game development this morning: Great Game Development Tutorials for Windows Phone Zhiming Xue has 3 pages of synopsis and links for everything Windows Phone at MIX. This is the 1st, but at the top of the pages are links to the other two: Windows Phone 7 Content From MIX10 – Part I From SilverlightCream.com: Using WriteableBitmap to Simplify Animations with Clones Jeremy Likness takes a break from his LOB posts to demonstrate a page flip animation using WriteableBitmap to simplify the animation using clones. SAX-like Xml parsing Want some experience or fun with Rx? Tim Greenfield has a post up on building an observable XmlReader. nstalling Silverlight applications without the browser involved Last night I blogged Mike Taulty's take on the "Silent Install" for an OOB app, tonight, I'm posting Tim Heuer's insight on the topic. How to: Create computed/custom properties for sample data in Blend/Sketchflow ondrejsv posted an example of digging into the files that control the sample data for Blend to get what you really want. PathListBox Adventures – radial layout Check out the radial layout XAML Ninja did using the PathListBox ... and all code available. RIA Services and Validation Nikhil Kothari has a great (duh!) post up that follows his Silverlight TV on the same subject: RIA Services and validation... lots of good external links also. Windows Phone 7 Application with OData Sergey Barskiy did an OData to WP7 app by using the feed from MIX10. You can see a list of sessions, and click on one to see details. Getting Blur And DropShadow to work in the Windows Phone Emulator Shawn Oster responds to some forum questions about Blur and DropShadow effects not showing up in the WP7 emulator, and gives the code trick we have to do for now. Metro Icons for Windows Phone 7 We all got the other icon set for WP7 from MSDN, but smartyP pulled the Metro Icons from the PPT deck of the MIX10 presentations... good job! Fonts in SketchFlow Christian Schormann talks about fonts in Sketchflow, where they live on your machine, and how you can use them. Blend 4: About Path Layout, Part III Christian Schormann also has Part III of his epic tutorial up on Path Layout and Blend. This one is on dynamic resizing layouts, and he has links back to the other two if you missed them... or you can find them with a search at SilverlightCream... :) Simple ViewModel Locator for MVVM: The Patients Have Left the Asylum John Papa And Glenn Block teamed up to solve the View First model only without the maintenance involved with the ViewModel locator by using MEF. It only took these guys and hour... sigh... :) Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Isis Finally Rolls Out

  - by David Dorf

  Google has rolled their wallet out for several chains; I see the NFC readers in Walgreen's when I'm sent their for milk.  But Isis has been relatively quiet until now.  As of last week they have finally launched in their two test cities: Austin, and Salt Lake City.  Below are the supported carriers and phones as of now, but more phones will be added later. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} AT&T supports: HTC One™ X, LG Escape™, Samsung Galaxy Exhilarate™, Samsung Galaxy S® III, Samsung Galaxy Rugby Pro™ T-Mobile supports: Samsung Galaxy S® II, Samsung Galaxy S® III, Samsung Galaxy S® Relay 4G Verizon supports: Droid Incredible 4G LTE. Of course iPhone owners have no wallet since Apple didn't included an NFC chip. To start using Isis, you have to take your NFC-capable phone to your carrier's store to get the SIM replaced with a more sophisticated one that has a secure element configured for Isis.  The "secure element" is the cryptographic logic that secures mobile payments.  Carriers like the secure element in the SIM while non-carriers (like Google) prefer the secure element in the phone's electronics. (I'm not entirely sure if you could support both Isis and Google Wallet on the same phone.  Anybody know?) Then you can download the Isis app from Google Play and load your cards.  Most credit cards are supported, and there's a process to verify the credit cards are valid.  Then you can select from the list of participating retailers to "follow."  Selecting a retailer allows that retailer to give you offers via the app. The app is well done and easy to use.  You can select a default payment type and also switch between them easily.  When the phone is tapped on the reader, there are two exchanges of information.  The payment information is transferred, and then the Isis "SmartTap" information which includes optional loyalty number and digital coupons.  Of course the value of mobile wallets comes from the ease of handling all three data types (i.e. payment, loyalty, offers). There are several advertisements for Isis running now, and my favorite is below.

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• Gaming on Cloud

  - by technomad

  Sometimes I wonder the pundits of cloud computing are way to consumed with the enterprise applications. With all the CAPEX / OPEX, ROI-talk taking the center stage, an opportunity to affect masses directly is getting overlooked. I am a self proclaimed die hard gamer. I come from the generation of gamers who started their journey in DOS games like Wolfenstein 3D and Allan Border Cricket (the latter is still a favorite pastime). In the late 90s, a revolution called accelerated graphics started in DirectX and OpenGL. Games got more advanced. Likes of Quake III and Unreal Tournament became the crown jewels of the industry. But with all these advancements, there started a race. A race of GFX giants ATI and NVIDIA to beat each other for better frame and image quality. Revisions to the graphics chipsets became frequent. Games became eye candies but at the cost of more GPU power / memory. Every eagerly awaited title started demanding more muscle power in graphics and PC hardware. Latest games and all the liquid smooth frame rates became the territory of the once with deep pockets who could spend lavishly on latest hardware. Enthusiasts like yours truly, who couldn’t afford this route, started exploring over-clocking, optimized hardware cooling... etc. to pursue the passion. Ever rising cost of hardware requirements lead to rampant piracy of PC games. Gamers were willing to spend on the latest titles, but the ones with tight budget prefer hardware upgrades against a legal copy of the game. It was also fueled by emergence of the P2P file sharing networks. Then came the era of Xbox and PS3s. It solved the major issue of hardware standardization and provided an alternative to ever increasing hardware costs. I have always admired these consoles, but being born and brought up in a keyboard/mouse environment, I still find it difficult to play first person shooters with a gamepad. I leave the topic of PC v/s Consol gaming for another day, but the bottom line is… PC gamers deserve an equally democratized solution. This is where I think Cloud Computing can come to rescue. It can minimize hardware requirements. Virtually end the software piracy and rationalize costs for gamers. Subscription based models like pay-as-you-play. In game rewards, like extended subscription credits for exceptional gamers (oh yes, I have beaten Xaero on nightmare in Quake III, time and again!) Easy deployment for patches and fixes. Better game AI. The list goes on and on… Fortunately, companies like OnLive are thinking in the same direction. Their gaming service is all set to launch on 17th June 2010 in E3 2010 expo in L.A. I wish them all the luck. I hope they will start a trend which will bring the smiles back on the face of budget gamers with the help of cloud computing.

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• Git branching / rebasing good practices

  - by Pawel Krupinski

  I have a following scenario: 3 branches: - Master - MyBranch branched off Master for the purpose of developing a new feature of the system - MyBranchLocal branched off MyBranch as my local copy of the branch MyBranch is being rebased against and pushed to by other developers (who are working on the same feature as I am). As the owner of the MyBranch branch I want to keep it in sync with Master by rebasing. I also need to merge the changes I make to MyBranchLocal with MyBranch. What is a good way to do that? Couple of possible scenarios I tried so far: I. 1. Commit change to MyBranchLocal 2. Rebase MyBranch against Master 3. Rebase MyBranchLocal against MyBranch 4. Merge MyBranch with MyBranchLocal II. 1. Commit change to MyBranchLocal 2. Merge MyBranch with MyBranchLocal 3. Rebase MyBranch against Master 4. Rebase MyBranchLocal against MyBranch III. 1. Commit change to MyBranchLocal 2. Rebase MyBranch against Master 3. Merge MyBranch with MyBranchLocal 4. Rebase MyBranchLocal against MyBranch I already know that scenario III seems to be messing the commit history up a lot, potentially duplicating commits. What is your experience? What scenarios do you recommend?

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• Latex renewcommand not working properly

  - by Nazgulled

  Why is this not working: \documentclass[a4paper,10pt]{article} \usepackage{a4wide} \usepackage[T1]{fontenc} \usepackage[portuguese]{babel} \usepackage[latin1]{inputenc} \usepackage{indentfirst} \usepackage{listings} \usepackage{fancyhdr} \usepackage{url} \usepackage[compat2,a4paper,left=25mm,right=25mm,bottom=15mm,top=20mm]{geometry} \usepackage{color} \usepackage[colorlinks]{hyperref} \usepackage[pdftex]{graphicx} \renewcommand{\headrulewidth}{0.4pt} \renewcommand{\footrulewidth}{0.4pt} \pagestyle{fancy} \fancyhead[L]{\small Laboratórios de Informática III} \fancyhead[R]{\small Projecto 1 (Linguagem \textsf{C})} \lstset{ basicstyle=\ttfamily\footnotesize, showstringspaces=false, frame=single, tabsize=4, breaklines=true, } \definecolor{Section1}{rgb}{0.09,0.21,0.36} \definecolor{Section2}{rgb}{0.21,0.37,0.56} \definecolor{Section3}{rgb}{0.30,0.50,0.74} \hypersetup{ bookmarks=false, linkcolor=red, urlcolor=cyan, } \renewcommand{\section}[1]{\texorpdfstring{\color{green}#1}{#1}} \parskip=6pt \begin{document} \begin{titlepage} \begin{center} \includegraphics[width=5cm]{./logo.jpg}\\[1cm] \textsc{\LARGE Universidade do Minho}\\[1cm] \textsc{\large Licenciatura em Engenharia Informática\\Laboratórios de Informática III}\\[1.5cm] \rule{\linewidth}{0.5mm}\\[0.4cm] \huge{\textbf{\textsc{Relatório do Projecto 1 (Linguagem C)}}} \rule{\linewidth}{0.5mm} \vfill \begin{tabular}{c c} \includegraphics[width=3.5cm]{./nuno.jpg} & \includegraphics[width=3.5cm]{./ricardo.jpg} \\ \textsc{\large{Nuno Mendes (51161)}} & \textsc{\large{Ricardo Amaral (48404)}} \\ \end{tabular} \vfill \large{\today} \end{center} \end{titlepage} \tableofcontents \newpage \section{Introdução} Lorem ipsum... \newpage \appendix \section{\color{Section1}Diagrama das Estruturas de Dados} \begin{center} \includegraphics[width=16cm]{./Diagrama.pdf} \end{center} \end{document} ! LaTeX Error: Something's wrong--perhaps a missing \item. See the LaTeX manual or LaTeX Companion for explanation. Type H for immediate help. ... l.2 ...rline {1}\color {green}Teste}{3}{section.1} How can I make it work properly?

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• Trouble using latex in Matplotlib / Scipy etc.

  - by ajhall

  I'm having some issues with my first attempts at using matplotlib and scipy to make some scatter plots of my data (too many variables, trying to see many things at once). Here's some code of mine that is working fairly well... import numpy from scipy import * import pylab from matplotlib import * import h5py FileID = h5py.File('3DiPVDplot1.mat','r') # (to view the contents of: list(FileID) ) group = FileID['/'] CurrentsArray = group['Currents'].value IvIIIarray = group['IvIII'].value PFarray = group['PF'].value growthTarray = group['growthT'].value fig = pylab.figure() ax = fig.add_subplot(111) cax = ax.scatter(IvIIIarray, growthTarray, PFarray, CurrentsArray, alpha=0.75) cbar = fig.colorbar(cax) ax.set_xlabel('Cu / III') ax.set_ylabel('Growth T') ax.grid(True) pylab.show() I tried to change the code to include latex fonts and interpreting, none of it seems to work for me, however. Here's an example attempt that didn't work: import numpy from scipy import * import pylab from matplotlib import * import h5py rc('text', usetex=True) rc('font', family='serif') FileID = h5py.File('3DiPVDplot1.mat','r') # (to view the contents of: list(FileID) ) group = FileID['/'] CurrentsArray = group['Currents'].value IvIIIarray = group['IvIII'].value PFarray = group['PF'].value growthTarray = group['growthT'].value fig = pylab.figure() ax = fig.add_subplot(111) cax = ax.scatter(IvIIIarray, growthTarray, PFarray, CurrentsArray, alpha=0.75) cbar = fig.colorbar(cax) ax.set_xlabel(r'Cu / III') ax.set_ylabel(r'Growth T') ax.grid(True) pylab.show() I'm using fink installed python26 with corresponding packages for scipy matplotlib etc. I've been using iPython and manual work instead of scripts in python. Since I'm completely new to python and scipy, I'm sure I'm making some stupid simple mistakes. Please enlighten me! I greatly appreciate the help!

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