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• A .NET Developers day with the iPad.

  - by mbcrump

  The Apple iPad is currently getting a lot of buzz because of the app store, the book store and of course iTunes. I had the chance to play with one and this is what I have learned about the device. Let’s get this out of the way first, the iPad is awesome. It is the device for media consumption and casual web browsing. But how does it measure up to those of us with .NET on our brains all days. Let’s find out… Main Screen – you can customize everything on this page. I guess I should replace that image with a C# or VS logo. Its pretty standard stuff if you have an iPhone.   Programming Books If you have a subscription to Safari Books Online, then you are in luck, its very easy to read the books on the iPad. Just fire up Safari web browser and goto the Safari Books Online. The biggest benefit that I can see with the iPad is the ability to read books wherever and not have to worry about purchasing books that I already have the .PDF for. Below is a sample from Code Complete 2nd Edition. Below is a PDF of the ECMA-334 C# Language Specification. As you can see its very readable and you should have no problem reading actual code.   Example of Code shown below: It is however easier to read the PDF and store them with a 3rd party PDF reader. I have seen several for .99 cents or less. You can however switch the screen to vertical to get more viewing space as shown below: I was disappointed with the iBooks application. I could not find a single .NET programming book anywhere. I was able to download the excellent sci-fi book “A memory of Wind” for free though. If I just overlooked them, then please email me with the names and titles. I couldn’t even find a technology category in the categories list. Web Surfing – Technical Sites Below is an example of my site in Safari. The code is very readable and the experience was identical to viewing it in Firefox. I tried multiple programming site and the pages looked great except those that used flash and of course it did not display on those pages.   News Apps - Technical Content The standard NY Times and USA Today looked great, but the Technical Content was lacking. It would probably be better to use Google Reader for online technical news.     YouTube Videos – Technical Content  Since its YouTube, we already know that a lot of technical content exist and it plays great on the iPad. I watched several programming videos and could clearly see the code being written. Taking Technical Notes The iPad comes with a great notepad for taking notes. I found that it was easy to take notes regarding projects that I am currently working on.   Calendar The calendar that ships with the iPad is great for organizing. You can setup exchange server or manually enter the information. Pretty standard stuff.    Random Applications that I like: TweetDeck.   and Adobe Ideas. Adobe Ideas is kinda like SketchFlow except you use your finger to mock up the sketches.  Don’t forget that the iPad is great for any type of podcasting. That pretty much sums it up, I would definitely recommend this device as it will only get better. I believe the iOS4 comes out on the 24th and the iPad will only get more and more apps. You could save a few bucks by waiting for the 2nd generation, but that’s a call that only you can make.

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• Database Helper v 2.0.0

  An open source code generation utility with some useful features to generate procedures,class for tables and .net code for procedures automatically.

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• AutoVue for Agile Sessions at the Oracle Value Chain Summit 2013

  - by Pam Petropoulos

  At the upcoming Oracle Value Chain Summit, which takes place February 4 - 6, 2013 in San Francisco, CA, AutoVue Enterprise Visualization solutions will be covered in a variety of sessions within the Agile PLM solution area. Attend the following sessions during the Product Deep Dives & Demos Track, and discover the latest AutoVue for Agile capabilities, including how to streamline business processes, such as change management by creating ECRs directly from within CAD designs. Visual Decision Making to Optimize New Product Development and Introduction Date: Tuesday, February 5 Time: 12:45 pm to 1:30 pm Seeing the Forest: Next Generation Visualization Date: Wednesday, February 6 Time: 3:15 pm to 4:00 pm Next-Generation CAD Data Management: MCAD, ECAD, and Software Configuration Management Date: Wednesday, February 6 Time: 11:15 am to 12:00 pm Keep an eye on this blog for forthcoming details about each of these sessions. Don’t miss this opportunity to mingle with other AutoVue for Agile customers and meet one on one with the AutoVue product management and development team. Register now for the early bird rate of $195 and secure your spot at the Summit. Click here to register and learn more.

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• Stumbling Through: Visual Studio 2010 (Part II)

  I would now like to expand a little on what I stumbled through in part I of my Visual Studio 2010 post and touch on a few other features of VS 2010.  Specifically, I want to generate some code based off of an Entity Framework model and tie it up to an actual data source.  Im not going to take the easy way and tie to a SQL Server data source, though, I will tie it to an XML data file instead.  Why?  Well, why not?  This is purely for learning, there are probably much better ways to get strongly-typed classes around XML but it will force us to go down a path less travelled and maybe learn a few things along the way.  Once we get this XML data and the means to interact with it, I will revisit data binding to this data in a WPF form and see if I cant get reading, adding, deleting, and updating working smoothly with minimal code.  To begin, I will use what was learned in the first part of this blog topic and draw out a data model for the MFL (My Football League) - I dont want the NFL to come down and sue me for using their name in this totally football-related article.  The data model looks as follows, with Teams having Players, and Players having a position and statistics for each season they played: Note that when making the associations between these entities, I was given the option to create the foreign key but I only chose to select this option for the association between Player and Position.  The reason for this is that I am picturing the XML that will contain this data to look somewhat like this: <MFL> <Position/> <Position/> <Position/> <Team>     <Player>         <Statistic/>     </Player> </Team> </MFL> Statistic will be under its associated Player node, and Player will be under its associated Team node no need to have an Id to reference it if we know it will always fall under its parent.  Position, however, is more of a lookup value that will not have any hierarchical relationship to the player.  In fact, the Position data itself may be in a completely different xml file (something Id like to play around with), so in any case, a player will need to reference the position by its Id. So now that we have a simple data model laid out, I would like to generate two things based on it:  A class for each entity with properties corresponding to each entity property An IO class with methods to get data for each entity, either all instances, by Id or by parent. Now my experience with code generation in the past has consisted of writing up little apps that use the code dom directly to regenerate code on demand (or using tools like CodeSmith).  Surely, there has got to be a more fun way to do this given that we are using the Entity Framework which already has built-in code generation for SQL Server support.  Lets start with that built-in stuff to give us a base to work off of.  Right click anywhere in the canvas of our model and select Add Code Generation Item: So just adding that code item seemed to do quite a bit towards what I was intending: It apparently generated a class for each entity, but also a whole ton more.  I mean a TON more.  Way too much complicated code was generated now that code is likely to be a black box anyway so it shouldnt matter, but we need to understand how to make this work the way we want it to work, so lets get ready to do some stumbling through that text template (tt) file. When I open the .tt file that was generated, right off the bat I realize there is going to be trouble there is no color coding, no intellisense no nothing!  That is going to make stumbling through more like groping blindly in the dark while handcuffed and hopping on one foot, which was one of the alternate titles I was considering for this blog.  Thankfully, the community comes to my rescue and I wont have to cast my mind back to the glory days of coding in VI (look it up, kids).  Using the Extension Manager (Available under the Tools menu), I did a quick search for tt editor in the Online Gallery and quickly found the Tangible T4 Editor: Downloading and installing this was a breeze, and after doing so I got some color coding and intellisense while editing the tt files.  If you will be doing any customizing of tt files, I highly recommend installing this extension.  Next, well see if that is enough help for us to tweak that tt file to do the kind of code generation that we wantDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Java EE 7 support in Eclipse 4.3

  - by arungupta

  Eclipse Kepler (4.3) features 71 different open source projects and over 58 million LOC. One of the main themes of the release is the support for Java EE 7. Kepler specifically added support for the features mentioned below: Create Java EE 7 Eclipse projects or using Maven New facets for JPA 2.1, JSF 2.2, Servlet 3.1, JAX-RS 2.0, EJB 3.2 Schemas and descriptors updated for Java EE 7 standards (web.xml, application.xml, ejb-jar.xml, etc) Tolerance for JPA 2.1 such as features can be used without causing invalidation and content assist for UI (JPA 2.1) Support for NamedStoredProcedureQuery (JPA 2.1) Schema generation configuration in persistence.xml (JPA 2.1) Updates to persistence.xml editor with the new JPA 2.1 properties Existing features support EE7 (Web Page Editor, Palette, EL content assist, annotations, JSF tags, Facelets, etc) Code generation wizards tolerant of EE7 (New EJB, Servlet, JSP, etc.) A comprehensive list of features added in this release is available in Web Tools Platform 3.5 - New and Noteworthy. Download Eclipse 4.3 and Java EE 7 SDK and start playing with Java EE 7! Oracle Enterprise Pack for Eclipse was released recently that uses Eclipse Kepler RC3 but will be refreshed soon to include the final bits.

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• Multiple vulnerabilities in Thunderbird

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-0451 Improper Control of Generation of Code ('Code Injection') vulnerability 4.3 Thunderbird Solaris 11 11/11 SRU 8.5 CVE-2012-0455 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-0456 Information Exposure vulnerability 5.0 CVE-2012-0457 Resource Management Errors vulnerability 9.3 CVE-2012-0458 Permissions, Privileges, and Access Controls vulnerability 6.8 CVE-2012-0459 Permissions, Privileges, and Access Controls vulnerability 7.5 CVE-2012-0460 Permissions, Privileges, and Access Controls vulnerability 6.4 CVE-2012-0461 Denial of Service (DoS) vulnerability 7.5 CVE-2012-0462 Denial of Service (DoS) vulnerability 7.5 CVE-2012-0464 Resource Management Errors vulnerability 7.5 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Multiple vulnerabilities in Firefox web browser

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-0451 Improper Control of Generation of Code ('Code Injection') vulnerability 4.3 Firefox web browser Solaris 11 11/11 SRU 8.5 CVE-2012-0455 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-0456 Information Exposure vulnerability 5.0 CVE-2012-0457 Resource Management Errors vulnerability 9.3 CVE-2012-0458 Permissions, Privileges, and Access Controls vulnerability 6.8 CVE-2012-0459 Permissions, Privileges, and Access Controls vulnerability 7.5 CVE-2012-0460 Permissions, Privileges, and Access Controls vulnerability 6.4 CVE-2012-0461 Denial of Service (DoS) vulnerability 7.5 CVE-2012-0462 Denial of Service (DoS) vulnerability 7.5 CVE-2012-0464 Resource Management Errors vulnerability 7.5 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• No Sound in 12.04 on Acer TimelineX 3830TG

  - by Fawkes5

  When i first installed ubuntu 12.04 everything worked fine. All of a sudden my sound has stopped working!! This has happened before [like 2 days ago], however the next day it started working again. That may happen again...[I've already rebooted 5 times] My Sound Card is a HDA intel PCH My Sound Chip is Intel CougarPoint HDMI My machine is an Acer TimelineX 3830TG, heres my lcpci output 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev ff) 02:00.0 Ethernet controller: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet (rev c0) 03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01) 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5116 PCI Express Card Reader (rev 01) 05:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) I'm running a dual boot with Windows 7, sound always works there. I've tried loading earlier kernels [3.2.0 ] but that hasn't helped. I've tried playing with alsamixer, unmuting and raising volume, doesn't work I've tried playing with pauvcontrol, doesnt work. Althought, strangely, when i play a song, under output i can see a bar moving implying that something is working, just the sound isn't getting through my speakers. Thus it might be a hardware problem. I've tried unistalling and reinstalling pulsaudio annd alsamixer, doesn't work [maybe made it worse...]. I've heard reverting back to kernel 3.0... works, but i'm reluctant to try that[i dont know much about kernels]. Thank you. Please tell me what other information you need. EDIT: My audio has started working again after another reboot. However this time im not connected to my external audio on startup. I will see if this is the issue next time i'm at home Edit: Connecting to external audio is not the problem.

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• Comment l'analyse statique moderne peut-elle faciliter la vie des développeurs ? Découvrez la solution de Coverity, utilisée par le CERN

  Webinar : comment l'analyse statique de dernière génération peut-elle faciliter la vie des développeurs ? Découvrez la solution de Coverity, utilisée par le CERN Dans un monde où un bug mineur peut avoir des effets dévastateurs, les outils d'analyse statique d'ancienne génération s'avèrent souvent incapables de détecter les vrais défauts de code, difficiles à identifier. Mais des outils modernes d'analyse statique de code existent, permettent de détecter ces défauts critiques et potentiellement dommageables tôt dans le cycle de développement, permettant ainsi de réduire les coûts, les délais et les risques liés aux erreurs logicielles. Coverity Static Analysis est l'une de...

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• CSC Enables IT Transformation for a Large Public Sector Health Agency with Middleware

  - by Tanu Sood

  CSC is a global leader in next-generation IT services and solutions. The company helps its clients achieve strong returns on their technology investments through its best-in-class industry solutions, domain expertise, and global scale. So, when CSC was tasked with an IT modernization project, the IT services leader relied on Oracle Fusion Middleware solutions to build a next-generation, service-oriented architecture environment to this large public-sector healthcare agency’s several thousand facilities. Catch this fantastic success story of how they enabled a secure, service-oriented architecture environment and a robust platform with interoperability and scalability that supports thousands of hospitals, and with the capacity to support 800,000 provider organizations and process millions of files during peak periods. Learn how Oracle Fusion Middleware can help your organization. 

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• Mozilla Thunderbird

  Mozilla's next generation mail client goes 3.1 Alpha - Codename "Lanikai"

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• Biztalk Schema generator in Visual Studio -- How to enable 'Well-Formed XML' ? [migrated]

  - by user28747

  I have installed Visual Studio 2010 and Biztalk. I create a new Biztalk-project in Visual STudio 2010. I choose 'Add new item' and then 'New generated schema'. Here I can choose 'Document type'. I choose 'Well-Formed XML (Not loaded)' and choose an input file. Now I get the message 'XFW to XSD schema generation module is not installed. Execute 'C:\Program files (X86)\Microsoft Biztalk Server 2010\SDK\Utilities\Schema Generator\InstallWFX.vbs to install the WFX to XSD schema generation module. I try to execute that file and some text hastily appear on the console. I restart Visual Studio 2010, but it still doesn't work. Apparently the execution of the shell script didn't work. I try to restart the computer, but it still doesn't work. Could anyone tell me what to do?

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• XPath expression with condition on multiple ancestors

  - by Rest Wing

  The application I am developing receives an XML structure similar to following: <Root> <Valid> <Child name="Child1" /> <Container> <Child name="Child2" /> </Container> <Container> <Container> <Child name="Child3"/> <Child name="Child4"/> </Container> </Container> <Wrapper> <Child name="Child5" /> </Wrapper> <Wrapper> <Container> <Child name="Child19" /> </Container> </Wrapper> <Container> <Wrapper> <Child name="Child6" /> </Wrapper> </Container> <Container> <Wrapper> <Container> <Child name="Child20" /> </Container> </Wrapper> </Container> </Valid> <Invalid> <Child name="Child7" /> <Container> <Child name="Child8" /> </Container> <Container> <Container> <Child name="Child9"/> <Child name="Child10"/> </Container> </Container> <Wrapper> <Child name="Child11" /> </Wrapper> <Container> <Wrapper> <Child name="Child12" /> </Wrapper> </Container> </Invalid> </Root> I need to get a list of of Child elements under following conditions: Child is n generation descendant of Valid ancestor. Child may be m generation descendant of Container ancestor which is o generation descendant of Valid ancestor. Valid ancestors for Child element are Container elements as m generation ancestors and Valid element as first generation ancestor. where m, n, o are natural numbers. I need to write following XPath expressions Valid/Child Valid/Container/Child Valid/Container/Container/Child Valid/Container/Container/Container/Child ... as a single XPath expression. For provided example, the XPath expression would return only Child elements having name attribute equal to Child1, Child2, Child3 and Child4. The closest I have come to solution is following expression. Valid/Child | Valid//*[self::Container]/Child However, this would select Child element with name attribute equal to Child19 and Child20. Does XPath syntax supports either optional occurrence of an element or setting condition similar to self in previous example to all ancestors between Child and Valid elements?

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• OutputStream is not available when a custom TextWriter is used.

  - by Pinu

  this is my function which converts pdf to png image, it's throwing an error on this line-- stream.WriteTo(Response.OutputStream); Is there some thing wrong?? protected void CreatePngFromPdf() { try { string PDFLocation = string.Format(@"\\XXXX\{0}\{1}\{2}.pdf", Yr, Loc.Substring(0, 4), Loc.Substring(4, 4)); Utilities.WebPDF.PDF WebPDF = new DocuvaultMVC.Utilities.WebPDF.PDF(); WebPDF.Credentials = new NetworkCredential(@"xyz", "xyz"); byte[] png = WebPDF.StreamPdfPageAsPngResize(PDFLocation,PageNumber, 612, 792); MemoryStream ms = new MemoryStream(png); MemoryStream stream = new MemoryStream(); int newWidth = 612; int newHeight = 792; System.Drawing.Image newImg = System.Drawing.Image.FromStream(ms); Bitmap temp = new Bitmap(newWidth, newHeight, newImg.PixelFormat); Graphics newImage = Graphics.FromImage(temp); newImage.DrawImage(newImg, 0, 0, newWidth, newHeight); newImg.Dispose(); temp.Save(stream, ImageFormat.Png); stream.WriteTo(Response.OutputStream); temp.Dispose(); stream.Dispose(); } catch (Exception ex) { Response.Write(ex.Message.ToString()); } }

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• PHP create huge errors file on my server feof() fread()

  - by Nik

  I have a script that allows users to 'save as' a pdf, this is the script - <?php header("Content-Type: application/octet-stream"); $file = $_GET["file"] .".pdf"; header("Content-Disposition: attachment; filename=" . urlencode($file)); header("Content-Type: application/force-download"); header("Content-Type: application/octet-stream"); header("Content-Type: application/download"); header("Content-Description: File Transfer"); header("Content-Length: " . filesize($file)); flush(); // this doesn't really matter. $fp = fopen($file, "r"); while (!feof($fp)) { echo fread($fp, 65536); flush(); // this is essential for large downloads } fclose($fp); ? An error log is being created and gets to be more than a gig in a few days the errors I receive are- [10-May-2010 12:38:50] PHP Warning: filesize() [function.filesize]: stat failed for BYJ-Timetable.pdf in /home/byj/public_html/pdf_server.php on line 10 [10-May-2010 12:38:50] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/byj/public_html/pdf_server.php:10) in /home/byj/public_html/pdf_server.php on line 10 [10-May-2010 12:38:50] PHP Warning: fopen(BYJ-Timetable.pdf) [function.fopen]: failed to open stream: No such file or directory in /home/byj/public_html/pdf_server.php on line 12 [10-May-2010 12:38:50] PHP Warning: feof(): supplied argument is not a valid stream resource in /home/byj/public_html/pdf_server.php on line 13 [10-May-2010 12:38:50] PHP Warning: fread(): supplied argument is not a valid stream resource in /home/byj/public_html/pdf_server.php on line 15 [10-May-2010 12:38:50] PHP Warning: feof(): supplied argument is not a valid stream resource in /home/byj/public_html/pdf_server.php on line 13 [10-May-2010 12:38:50] PHP Warning: fread(): supplied argument is not a valid stream resource in /home/byj/public_html/pdf_server.php on line 15 The line 13 and 15 just continue on and on... I'm a bit of a newbie with php so any help is great. Thanks guys Nik

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• Implementing Naïve Bayes algorithm in Java - Need some guidance

  - by techventure

  hello stackflow people As a School assignment i'm required to implement Naïve Bayes algorithm which i am intending to do in Java. In trying to understand how its done, i've read the book "Data Mining - Practical Machine Learning Tools and Techniques" which has a section on this topic but am still unsure on some primary points that are blocking my progress. Since i'm seeking guidance not solution in here, i'll tell you guys what i thinking in my head, what i think is the correct approach and in return ask for correction/guidance which will very much be appreciated. please note that i am an absolute beginner on Naïve Bayes algorithm, Data mining and in general programming so you might see stupid comments/calculations below: The training data set i'm given has 4 attributes/features that are numeric and normalized(in range[0 1]) using Weka (no missing values)and one nominal class(yes/no) 1) The data coming from a csv file is numeric HENCE * Given the attributes are numeric i use PDF (probability density function) formula. + To calculate the PDF in java i first separate the attributes based on whether they're in class yes or class no and hold them into different array (array class yes and array class no) + Then calculate the mean(sum of the values in row / number of values in that row) and standard divination for each of the 4 attributes (columns) of each class + Now to find PDF of a given value(n) i do (n-mean)^2/(2*SD^2), + Then to find P( yes | E) and P( no | E) i multiply the PDF value of all 4 given attributes and compare which is larger, which indicates the class it belongs to In temrs of Java, i'm using ArrayList of ArrayList and Double to store the attribute values. lastly i'm unsure how to to get new data? Should i ask for input file (like csv) or command prompt and ask for 4 values? I'll stop here for now (do have more questions) but I'm worried this won't get any responses given how long its got. I will really appreciate for those that give their time reading my problems and comment.

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• How do I keep a CALayer, sublayer of a CATiledLayer, from changing it's scale after a zoom ?

  - by David

  I have a CATiledLayer that is used to display a PDF page (this CATiledLayer is the layer type of my UIView which is a subview of a UIScrollView). I want to add overlay markers on this page. So I add a sublayer to my CATiledLayer. This sublayer again hosts the different marker's layers and acts as a grouping layer. So graphically, I have: (keep in mind that I have multiple markers which are CALayers also, this is ascii art after all) pdf page (CATiledLayer) ---------------------- | CALayer | | +---------+ | | | +----+ | | | | |mker| | | | | +----+ | | | +---------+ | | | ---------------------- I have set up the canonical drawLayer:inContext: in my view for drawing the pdf. When I zoom to have more detail, the pdf gets rendered correctly, but the markers get scaled. No matter what I do to the bounds of the CALayer, my markers always become bigger and appear jagged. I would like to have the markers always the same size, as when they were initialized and first shown when the view was drawn. Is this possible ? or am I using a wrong approach ? Should I do special drawing for my contained CALayer in the drawLAyer:inContext: message ? As you see, there are things that I am missing to resolve my problem. Thank you for any help you provide.

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• Simulate Windows Service with ASP.NET

  - by Bayonian

  Hi, I have small web app that generate PDF files as a report. I'm trying to delete those generated PDF files after 10 sec that they are generated. What I want to do is to read a folder with PDF files every 10 sec, and delete all the PDF files inside that folder. I read this post of Easy Background Tasks in ASP.NET. The following code is the VB version. Protected Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs) AddTask("DoStuff", 10) End Sub Private Sub AddTask(ByVal name As String, ByVal seconds As Integer) OnCacheRemove = New CacheItemRemovedCallback(CacheItemRemoved) HttpRuntime.Cache.Insert(name, seconds, Nothing, DateTime.Now.AddSeconds(seconds), Cache.NoSlidingExpiration, CacheItemPriority.NotRemovable, _ OnCacheRemove) End Sub Public Sub CacheItemRemoved(ByVal k As String, ByVal v As Object, ByVal r As CacheItemRemovedReason) ' do stuff here if it matches our taskname, like WebRequest DeletePDFilesInFoler() ' re-add our task so it recurs AddTask(k, Convert.ToInt32(v)) End Sub But I got this error Delegate 'System.Web.Caching.CacheItemRemovedCallback' requires an 'AddressOf' expression or lambda expression as the only argument to its constructor. If this code works, where I should put it. Right, now I'm putting it in the master page. How to get this error out? Thank you

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• iTextSharp last version doesnot support metadata?

  - by zp chen

  Console.WriteLine("Chapter 1 example 6: Meta Information"); // step 1: creation of a document-object Document document = new Document(); try { // step 2: // we create a writer that listens to the document // and directs a PDF-stream to a file PdfWriter.GetInstance(document, new FileStream("Chap0106.pdf", FileMode.Create)); // step 3: we add some metadata and open the document document.AddTitle("Hello World example"); document.AddSubject("This example explains step 6 in Chapter 1"); document.AddKeywords("Metadata, iText, step 6, tutorial"); document.AddCreator("My program using iText#"); document.AddAuthor("Bruno Lowagie"); document.AddHeader("Expires", "0"); document.Open(); // step 4: we add a paragraph to the document document.Add(new Paragraph("Hello World")); } catch (DocumentException de) { Console.Error.WriteLine(de.Message); } catch (IOException ioe) { Console.Error.WriteLine(ioe.Message); } // step 5: we close the document document.Close(); I am just copy the iTextSharp.tutorial. I get the pdf file Chap0106.pdf but metadata show nothing... I am use vs2008 xp system

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• Calculating confidence intervals for a non-normal distribution

  - by Josiah

  Hi all, First, I should specify that my knowledge of statistics is fairly limited, so please forgive me if my question seems trivial or perhaps doesn't even make sense. I have data that doesn't appear to be normally distributed. Typically, when I plot confidence intervals, I would use the mean +- 2 standard deviations, but I don't think that is acceptible for a non-uniform distribution. My sample size is currently set to 1000 samples, which would seem like enough to determine if it was a normal distribution or not. I use Matlab for all my processing, so are there any functions in Matlab that would make it easy to calculate the confidence intervals (say 95%)? I know there are the 'quantile' and 'prctile' functions, but I'm not sure if that's what I need to use. The function 'mle' also returns confidence intervals for normally distributed data, although you can also supply your own pdf. Could I use ksdensity to create a pdf for my data, then feed that pdf into the mle function to give me confidence intervals? Also, how would I go about determining if my data is normally distributed. I mean I can currently tell just by looking at the histogram or pdf from ksdensity, but is there a way to quantitatively measure it? Thanks!

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• Cocoa Drag and Drop, reading back the data

  - by kodai

  Ok, I have a NSOutlineView set up, and I want it to capture PDF's if a pdf is dragged into the NSOutlineView. My first question, I have the following code: [outlineView registerForDraggedTypes:[NSArray arrayWithObjects:NSStringPboardType, NSFilenamesPboardType, nil]]; In all the apple Docs and examples I've seen I've also seen something like MySupportedType being an object registered for dragging. What does this mean? Do I change the code to be: [outlineView registerForDraggedTypes:[NSArray arrayWithObjects:@"pdf", NSStringPboardType, NSFilenamesPboardType, nil]]; Currently I have it set up to recognize drag and drop, and I can even make it spit out the URL of the dragged file once the drag is accepted, however, this leads me to my second question. I want to keep a copy of those PDF's app side. I suppose, and correct me if I'm wrong, that the best way to do this is to grab the data off the clipboard, save it in some persistant store, and that's that. (as apposed to using some sort of copy command and literally copying the file to the app director.) That being said, I'm not sure how to do that. I've the code: - (BOOL)outlineView:(NSOutlineView *)ov acceptDrop:(id <NSDraggingInfo>)info item:(id)item childIndex:(NSInteger)childIndex { NSPasteboard *pboard = [info draggingPasteboard]; NSURL *fileURL; if ( [[pboard types] containsObject:NSURLPboardType] ) { fileURL = [NSURL URLFromPasteboard:pboard]; // Perform operation using the file’s URL } NSData *data = [pboard dataForType:@"NSPasteboardTypePDF"]; But this never actually gets any data. Like I said before, it does get the URL, just not the data. Does anyone have any advise on how to get this going? Thanks so much!

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• ExpertPDF and Caching of URLs

  - by Josh

  We are using ExpertPDF to take URLs and turn them into PDFs. Everything we do is through memory, so we build up the request and then read the stream into ExpertPDF and then write the bits to file. All the files we have been requesting so far are just plain HTML documents. Our designers update CSS files or change the HTML and rerequest the documents as PDFs, but often times, things are getting cached. Take, for example, if I rename the only CSS file and view the HTML page through a web browser, the page looks broke because the CSS doesn't exist. But if I request that page through the PDF Generator, it still looks ok, which means somewhere the CSS is cached. Here's the relevant PDF creation code: // Create a request HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url); request.UserAgent = "IE 8.0"; request.ContentType = "application/x-www-form-urlencoded"; request.Method = "GET"; // Send the request HttpWebResponse resp = (HttpWebResponse)request.GetResponse(); if (resp.IsFromCache) { System.Web.HttpContext.Current.Trace.Write("FROM THE CACHE!!!"); } else { System.Web.HttpContext.Current.Trace.Write("not from cache"); } // Read the response pdf.SavePdfFromHtmlStream(resp.GetResponseStream(), System.Text.Encoding.UTF8, "Output.pdf"); When I check the trace file, nothing is being loaded from cache. I checked the IIS log file and found a 200 response coming from the request, even after a file had been updated (I would expect a 302). We've tried putting the No-Cache attribute on all HTML pages, but still no luck. I even turned off all caching at the IIS level. Is there anything in ExpertPDF that might be caching somewhere or something I can do to the request object to do a hard refresh of all resources? UPDATE I put ?foo at the end of my style href links and this updates the CSS everytime. Is there a setting someplace that can prevent stylesheets from being cached so I don't have to do this inelegant solution?

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• CALayer and Off-Screen Rendering

  - by Luke Mcneice

  I have a Paging UIScrollView with a contentSize large enough to hold a number of small UIScrollViews for zooming, The viewForZoomingInScrollView is a viewController that holds a CALayer for drawing a PDF page onto. This allows me to navigate through a PDF much like the ibooks PDF reader. The code that draws the PDF (Tiled Layers) is located in: - (void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx; And simply adding a 'page' to the visible screen calls this method automatically. When I change page there is some delay before all the tiles are drawn, even though the object (page) has already been created. What i want to be able to do is render the next page before the user scrolls to it, thus preventing the visible tiling effect. However, i have found that if the layer is located offscreen adding it to the scrollview doesn't call the drawLayer. Any Ideas/common gotchas here? I have tried: [viewController.view.layer setNeedsLayout]; [viewController.view.layer setNeedsDisplay]; NB: The fact that this is replicating the ibooks functionally is irrelevant within the context of the full app.

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• Start with remoting or with WCF

  - by Sheldon

  Hi. I'm just starting with distributed application development. I need to create (all by myself) an enterprise application for document management. That application will run on an intranet (within the firewall, no internet access is required now, BUT is probably that will be later). The application needs to manage images that will be stored within MySQL Server (as blobs) and those images will be then recovered by the app and eventually one or more of them will be converted to PDF. Performance is the most important non-functional requirement. I have a couple of doubts. What do you suggest to use, .NET Remoting or WCF over TCP-IP (I think second one is the best for the moment I need to expose the business logic over internet, changing the protocol). Where do you suggest to make the transformation of the images to pdf files, I'm using iText. (I have thought to have the business logic stored within the IIS and exposed via WCF, and that business logic to be responsible of getting the images and transforming them to PDF, that because the IIS and the MySQL Server are the same physical machine). I ask about where to do the transformation because the app must be accessible from multiple devices, and for example, for mobile devices, the pdf maybe is not necessary. Thank you very much in advance.

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• Extracting word from file using grep or sed

  - by Marco

  Hi, I have a file in the format below: File : \\dvtbbnkapp115\nautilus\030db28a-f241-4054-a0e3-9bfa7e002535.dip was processed. Entries Found : 0 Unarchived Documents : 1 File Size : 1 K Error : The following line could not be processed. Bad Document Type. Error : Marketing and Contact preference change update||7000003735||078ef1f3-db6b-46a8-bb0d-c40bb2296ab5.pdf File : \\dvtbbnkapp115\nautilus\078ef1f3-db6b-46a8-bb0d-c40bb2296ab5.dip was processed. Entries Found : 0 Unarchived Documents : 1 File Size : 1 K Error : The following line could not be processed. Bad Document Type. Error : Declined - Bureau Data (process)||7000003723|252204|2f1d71f4-052c-49f1-95cf-9ca9b4268f0c.pdf File : \\dvtbbnkapp115\nautilus\2f1d71f4-052c-49f1-95cf-9ca9b4268f0c.dip was processed. Entries Found : 0 Unarchived Documents : 1 File Size : 1 K Error : The following line could not be processed. Bad Document Type. Error : Unable to call - please contact|40640510016710|7000003180||3e6a792f-c136-4a4b-a654-37f4476ccef8.pdf I require to extract just the pdf file names after the double pipe and write them to a file. I am a novice when it comes to unix/sed/grep commands, i have tried but no luck? any ideas or examples i could use to extract the information above? thanks

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