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  • How can I partition a vector?

    - by Karsten W.
    How can I build a function slice(x, n=2) which would return a list of vectors where each vector except maybe the last has size n, i.e. slice(letters, 10) would return list(c("a", "b", "c", "d", "e", "f", "g", "h", "i", "j"), c("k", "l", "m", "n", "o", "p", "q", "r", "s", "t"), c("u", "v", "w", "x", "y", "z")) ?

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  • YAML to CSV converter-does one exist already?

    - by Joel
    Hi folks, I'm wanting to migrate contacts from one CRM to another. The first only exports all the data I need in YAML. The second only imports with CSV. Is there a converter out there that already exists, or do I need to build one specific to this job? Thanks!

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  • firefox extension and ie8 plugin compatibility

    - by Ke
    hi, im a bit new at extension development, but im about to embark upon a project to build a ffox extension. Does anyone know if its possbile, with minimal adaption, to make a firefox extension compatible with ie8 as a plugin and if so, are there any caveats i should be aware of? I guess its just javascript code wrapped around the ffox or ie8 wrapper, but would really appreciate to learn from someone who has experience. Cheers Ke

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  • Symbolizing plugins in Instruments' stack traces

    - by Huperniketes
    Instruments is able to properly symbolize my app's main bundle (as well as frameworks and libraries) in the stack trace of the extended detail view. However, symbols aren't resolved for plugins loaded during execution. Setting the build directory where the dSym files for the main and plugin bundles are located (as well as the app itself) in the "File Re-Symbolicate Document" menu item made no discernible difference in the stack trace. What must I do for Instruments to load symbols for the plugins?

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  • Usb Driver on 64bit Windows

    - by SurDin
    I have a pretty generic 64bit driver based on bulkusb.sys in WDK. It's been working for years with an embedded program, but now it is needed to work on Vista 64. From all the documentation I've tried to look through there doesn't seem to be anything affecting it, except compiling it for the 64bit environment, and yet when I compile it with the AMD64 build environment, I get "driver not intended for this platform" error message when it's trying to open the sys. What could be the solution for this?

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  • Compile Error: Ticks must be between DateTime.MinValue.Ticks and DateTime.MaxValue.Ticks. Parameter

    - by mickyjtwin
    I have a Visual Studio 2008 solution that when I build, returns the following error: Ticks must be between DateTime.MinValue.Ticks and DateTime.MaxValue.Ticks. Parameter name: ticks There is no reference file/line/column in the error. Becoming quite frustrating as the solution builds in the end, however I cannot debug. In the solution, there is no reference/using to DateTime.MinValue.Ticks at all...

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  • Cache aspx page returning an asset on client?

    - by Lieven Cardoen
    How do you cache an aspx page call on the client? The aspx page returns an asset and looks like this: http://srv-edu-build/edumatic3/dev/RetrieveBlob.aspx?assetId=31809&assetFileId=9823 We have tried with Output Cache, with caching in the code behind, but the only result we get is server side caching (by IIS7). In the header of the response cache-control is set to public and expiration time is set (to 14800 as set in output cache profile).

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  • python cx_Freeze egg problem

    - by bandana
    im trying to build an executable (for 32bit windows xp) from a python script (which uses lots of eggs) i considered py2exe(0.6.9), PyInstaller (1.4) and cx_Freeze (4.1.2) py2exe doesnt like eggs for breakfast PyInstaller doesnt like python 2.6 for lunch) so i went with cx_Freeze (supposed to support eggs seamlessly since 4.0b1). but for some reason it doesnt. what parameters do i pass in order for files inside an egg to be recognized?

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  • How to create Data Entry User Interfaces in asp.net?

    - by Wael Dalloul
    Suppose that you have a big Data Entry Web Application Like Microsoft CRM, what is the strategies and technologies that you follow to build a website like it? I don't want to use any Dynamic Web Page Generation software, because it have a lot of limitations.. Also I don't want to design every page and repeat everything what's the best approach? Any Ideas or Head lines on this issue? Thanks in Advance...

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  • Parsing SQL in .NET

    - by Eli
    I'm trying to build a .NET Managed data provider and I need to be able to parse SQL commands. What are good, free (as in beer) objects to do this? - I haven't seen any standard .NET assemblies for this yet. Thanks, Eli.

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  • Creating a new wordpress post from twitter tweets

    - by pingu
    Hi guys, I'd like to build an application that, on interval, it checks for tweets containing a particular hashtag, and creates an individual Wordpress post for each tweet that it finds. What is the best way to do this? Are there existing plugins/tools available, or should I write my own custom plugin?

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  • Google Appengine: Java or Python

    - by husayt
    We are going to use Google Appengine platform for our next big web project.But we are not sure which flavour to use: Java or Python. Could you please, advise on cons and pros of each approach? Which is the best way in order to build more scalable and efficient solution quicker. Thanks in advance

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  • clang: error: linker command failed with exit code 1, only when testing on device

    - by woutr_be
    I was just about to test my app on a device when I ran into this problem, I'm getting this Linker Error. I've already checked all my compile sources and Build Phases, but there's no sign of my importing things twice. ld: duplicate symbol _calculateNextSearchPage in /Users/wouter/Sites/test/FastPdfKit.embeddedframework/FastPdfKit.framework/FastPdfKit(FastPdfKit) and /Users/wouter/Sites/test/FastPdfKit.embeddedframework/FastPdfKit.framework/FastPdfKit(FastPdfKit) for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) This only happens when testing on a device, not in the simulator.

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  • GNU make: should -j equal number the number of CPU cores in a system?

    - by Johan
    Hi What is you experience with the make -j flag? There seem to be some controversial if the jobs are supposed to be equal to the numbers of cores, or if you can maximize the build by adding one extra job that can be cued up while the others "work". The question is if it is better to use -j4 or -j5? And have you seen (or done) any benchmarking that support one or the other? Thanks Johan

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  • DDD: Getting aggregate roots for other aggregates

    - by Ed
    I've been studying DDD for the past 2 weeks, and one of the things that really stuck out to me was how aggregate roots can contain other aggregate roots. Aggregate roots are retrieved from the repository, but if a root contains another root, does the repository have a reference to the other repository and asks it to build the subroot?

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  • Face Detection API for Objective-C

    - by Elomar Nascimento dos Santos
    Hello, everybody. Does someone here knows a face detection API for Objective-C? I just want to detect one or more faces inside a photo, so it's not necessary face recognition. I want to build something similar to the iPhoto's feature that puts a square on all faces in a photo. It would be nice if the API can be used on iPhone apps too. Regards.

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  • users authentication and dht

    - by mtasic
    Lets say that I have only DHT (distributed hash table) implemented (in Python), and I want to build authentication service over P2P network, but without introducing centralized authentication server with such a service. Can it be done, and if so how can I achieve this? I'm familiar with how Skype and Wuala have done this, but I am looking for decentralized solution without single point of failure.

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  • simple webservice code ?

    - by Surya sasidhar
    hi, i write a simple webservice code in asp.net when i build the service and run the service it is working fine. when i try to access the webservice it is giving some problem , problem means i am not getting that method (webservice method). After completing writing the webserivce i take a asp.net page (.aspx) and in solution explorer i add a webservices and it is added successfully. but when i adding namespace it is not getting the service name ( i not able to add the namespace of websercice

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  • Compile classfile issue in Spring 3

    - by Prajith R
    I have used spring framework 3 for my application. Everything is ok while developed in Netbeans But i need a custom build and done for the same The build created without any issue, but i got the following error The error occurred while calling the following method @RequestMapping(value = "/security/login", method = RequestMethod.POST) public ModelAndView login(@RequestParam String userName, @RequestParam String password, HttpServletRequest request) { ...................... But There is no issue while creating the war with netbeans (I am sure it is about the compilation issue) have you any experiance on this issue ... There is any additional javac argument for compile the same (netbeans used there custom task for the compilation) type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: Failed to invoke handler method [public org.springframework.web.servlet.ModelAndView com.mypackage.security.controller.LoginController.login(java.lang.String,java.lang.String,javax.servlet.http.HttpServletRequest)]; nested exception is java.lang.IllegalStateException: No parameter name specified for argument of type [java.lang.String], and no parameter name information found in class file either. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:659) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563) javax.servlet.http.HttpServlet.service(HttpServlet.java:637) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) com.mypackage.security.controller.AuthFilter.doFilter(Unknown Source) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) root cause org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: Failed to invoke handler method [public org.springframework.web.servlet.ModelAndView com.mypackage.security.controller.LoginController.login(java.lang.String,java.lang.String,javax.servlet.http.HttpServletRequest)]; nested exception is java.lang.IllegalStateException: No parameter name specified for argument of type [java.lang.String], and no parameter name information found in class file either. org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:171) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:414) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:402) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563) javax.servlet.http.HttpServlet.service(HttpServlet.java:637) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) com.mypackage.security.controller.AuthFilter.doFilter(Unknown Source) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) root cause java.lang.IllegalStateException: No parameter name specified for argument of type [java.lang.String], and no parameter name information found in class file either. org.springframework.web.bind.annotation.support.HandlerMethodInvoker.getRequiredParameterName(HandlerMethodInvoker.java:618) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveRequestParam(HandlerMethodInvoker.java:417) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.resolveHandlerArguments(HandlerMethodInvoker.java:277) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:163) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:414) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:402) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:771) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:716) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:563) javax.servlet.http.HttpServlet.service(HttpServlet.java:637) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) com.mypackage.security.controller.AuthFilter.doFilter(Unknown Source) org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.

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  • @webservice inheritance java

    - by javamonkey79
    I am trying to build a java ee webservice that has a common base class, but the child classes are the actual @webservice classes (and expose the parent class methods as @webmethod's) Like this: public abstract class Parent { @WebMethod public void doSomething(){//...does stuff} } @WebService public class Child extends Parent {} I've tried (and have failed): - annotating the parent class as a webservice as well - making sure all parent methods are annotated with @WebMethod Is this possible, if so, how?

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  • What is the strangest/weirdest program you've ever made?

    - by MrValdez
    Programmers are strange people. We build things out of thin air, a part of our sanity and with weird codes that would make any grown sane man cry. But sometimes, a programmer builds a program that is too weird even by their insane standards. What program have you created that is weird and strange? (One program per answer please)

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  • Can XP 32bit use the Windows 7 64bit upgrade?

    - by user295734
    Purchased a new computer, actually the parts to build one. Unsure what windows 7 to purchase. Need at least professional, seems to be around $200 upgrade to $300 full version. If I put the old XP on my new machine, will i be bale to use the 64bit windows 7 Pro upgrade instead of having to buy the full version? Will it still do a clean install?

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