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• C# Monte Carlo Simulation Package Needed

  - by Yunzhou

  I'm relative new to C# and doing a project using Monte Carlo Simulation. Basically my question is the following. I have two uncertain variable inputs, A and B, and they will go through a model and give an output C. So C = f(A,B). I know A's probability distribution (Triangular) and B's probability distribution (Discrete). How can I get the probability distribution of C? What I have done now is that I can generate random numbers based on A's triangular distribution as well as B's discrete distribution. Each pair of randomly generated A and B gives a resultant C. I've run this model 1000 times thus I can get 1000 possible values of C. The difficulty is to get the corresponding probabilities of each value of C. Obviously it's not 1/1000 unless C is uniformly distributed. Is there any Monte Carlo Simulation package/library I can use?

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• Works using Django development server, but throws import error with Apache using mod_wsgi

  - by Raj

  I have a Django project that works fine with the development server that comes with it. No errors are produced at all when I use "django manage.py runserver" and the app works fine, but when I try to use it with mod_wsgi and Apache the browser displays "Internal Server Error" with a 500 error code and it generates an import error in the Apache error log. Here's the error in the log: ImportError: No module named registration I'm using the Django registration module which is located in a path like this: /opt/raj/photos/registration I know that the registration app is in the path because I can fire up a Python shell, import sys, and get a list of paths using sys.path. Here are some of the paths output from Python shell: sys.path ['', '/opt/raj/pyamf', '/opt/raj', '/opt/raj/pictures', '/opt/raj/pictures /registration', '/usr/lib/python2.6',....] Any thoughts would be appreciated.

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• Many ascx-to-one ascx.cs bug in VS2008

  - by pukipuki

  I'm developing second language support for the site. So I made duplicate .ascx and .aspx files for existing ascx.cs and aspx.cs Most of the time everything works fine.. but suddenly I'm getting: Type 'ctrl_car' exists both in 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\rzhdengine\d072cc72\b9d5698b\App_Web_xdmblegv.dll', and in 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\rzhdengine\d072cc72\b9d5698b\App_Web_gkptrzo2.dll' (translated from russian) ctrl_car ctrl = (ctrl_car) LoadControl("car.ascx"); I have few such strings of code... and same error occurs with one of them. But WITHOUT any changes from me with those files. Sometimes it works on another VS... sometimes regetting project helps... but it is always waste of time (

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• Error when running a GWTTestCase using maven gwt plugin

  - by adancu

  Hi, I've created a test which extends GWTTestCase but I'm getting this error: mvn integration-test gwt:test Running com.myproject.test.ui. GwtTestMyFirstTestCase Translatable source found in... [WARN] No source path entries; expect subsequent failures [ERROR] Unable to find type 'java.lang.Object' [ERROR] Hint: Check that your module inherits 'com.google.gwt.core.Core' either directly or indirectly (most often by inheriting module 'com.google.gwt.user.User') Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.1 sec <<< FAILURE! GwtTestMyFirstTestCase.java is in /src/test/java, while the GWT module is located in src/main/java. I assume this shouldn't be a problem. I've done everything required according to http://mojo.codehaus.org/gwt-maven-plugin/user-guide/testing.html and of course that my gwt module already has com.google.gwt.core.Core indirectly imported. http://maven.apache.org/maven-v4_0_0.xsd" 4.0.0 com.myproject main jar 0.0.1-SNAPSHOT Main Module <properties> <gwt.module>com.myproject.MainModule</gwt.module> </properties> <parent> <groupId>com.myproject</groupId> <artifactId>app</artifactId> <version>0.1.0-SNAPSHOT</version> </parent> <dependencies> <dependency> <groupId>com.myproject</groupId> <artifactId>app-commons</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.google.gwt</groupId> <artifactId>gwt-dev</artifactId> <version>${gwt.version}</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <configuration> <outputFile>../app/src/main/webapp/WEB-INF/main.tree</outputFile> </configuration> </plugin> <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>gwt-maven-plugin</artifactId> <executions> <execution> <goals> <goal>test</goal> </goals> </execution> </executions> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <configuration> <classesDirectory> ${project.build.directory}/${project.build.finalName}/${gwt.module} </classesDirectory> </configuration> </plugin> </plugins> </build> Here is the test case, located in /src/test/java/com/myproject/test/ui public class GwtTestMyFirstTestCase extends GWTTestCase { @Override public String getModuleName() { return "com.myproject.MainModule"; } public void testSomething() { } } Here is the gwt module I'm trying to test, located in src/main/java/com/myproject/MainModule.gwt.xml: <inherits name='com.myproject.Commons' /> <source path="site" /> <source path="com.myproject.test.ui" /> <set-property name="gwt.suppressNonStaticFinalFieldWarnings" value="true" /> <entry-point class='com.myproject.site.SiteModuleEntry' /> Can anyone give me a hint or two about what I'm doing wrong? Thanks in advance.

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• Specify JDK for Maven to use

  - by DanInDC

  Hi all. I am trying to build a Hudson plugin I've modified and it requires jdk1.6. This is fine, but I don't see how I can tell maven where the different jdk is. I've found few mentions on the internet but they don't seem to apply to me. Some suggest adding some config to .m2/settings.xml but I don't have a settings.xml. Plus, I don't want to use 1.6 for all maven builds. One kink is I am using mvn in cygwin, if that matters at all. It appears I should be able to make the specification in the project pom file, but the existing pom is pretty bare. So bottom line is, is there a way to specify a jdk for a single invocation of maven?

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• Dividing a string into substring in JAVA

  - by Santhosha

  Hi, As per my project I need to devide a string into two parts. below is the example: String searchFilter = "(first=sam*)(last=joy*)"; Where searchFilter is a string. I want to split above string to two parts first=sam* and last=joy* so that i can again split this variables into first,sam*,last and joy* as per my requirement. I dont have much hands on experience in java. Can anyone help me to achieve this one. It will be very helpfull. Thanks in advance

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• What is a good git server frontend for self hosted git repositories

  - by Ritesh M Nayak

  I am planning on deploying git for a project I am currently working on and was wondering if there are any free softwares that provide an easy to use web view of the git repository. I am primarily interested in using the front end to track changes, see diff information etc. There is a list of such front ends available here. Does anyone have any experience with any of these ? Which one would you suggest An open source clone of github would do just fine actually :D but I know thats too much to ask .

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• How do I mirror a SVN repository on CodePlex?

  - by James Curran

  I'm the creator (and so far, only developer) of a CodePlex project. I've writing it on my laptop, using a Subversion repository on my home network. Submitting my changes to CodePlex via the TeamServer interface is driving me crazy, and I'd really like a simple way of syncing my svn repos with CodePlex via there new SVN interface. svnsync or synmerge seem to be the way to go, but neither's instructions seem clear to a guy who's only ever used TortoiseSVN. And they seem to also seem need local access to the destination server (which clearly for CodePlex, is impossible) So, could someone give simple instructions how to do this?

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• How to define clock input in Xilinx

  - by seventeen

  Hey, I have almost no experience with Xilinx. I have a group project for a Digital Logic course that is due soon, where my partner, who was supposed to take care of the Xilinx simulations decided to bail on me. So here I am trying to figure it out last minute. I have designed a synchronous counter using a few JK Flip Flops and I need to define the CLK input for the FJKCs. I have drawn up the correct schematic, but I cannot figure out how to define a clock input. Any help appreciated, and yes, this is homework. I just can't find any basic xilinx documentation/tutorials online and I honestly don't have time to learn the whole IDE.

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• ASP.NET MVC TDD with LINQ and SQL database

  - by dean nolan

  I am trying to start a new MVC project with tests and I thought the best way to go would have 2 databases. 1 for testing against and 1 for when I run the app and use it (also test really as it's not production yet). For the test database I was thinking of putting create table scripts and fill data scripts within the test setup method and then deleting all this in the tear down method. I am going to be using Linq to SQL though and I don't think that will allow me to do this? Will I have to just go the ADO route if I want to do it this way? Or should I just use a mock object and store data as an array or something?. Any tips on best practices? How did Jeff go about doing this for StackOveflow?

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• Quick way to create JSF custom component

  - by michael lucas

  I know of two ways of creating custom JSF components: 1. Native JSF way: creating JSF component class, tag, etc. 2. Facelets way: defining component in a xhtml file and then creating appropriate decrption in facelets taglib. Currently I work on a project in which introducing facelets is unfortunately out of the question. On the other hand, creating custom components the standard JSF way seems like a pain in the ass. Is there maybe a third party library that allows creating custom components in the way similar to facelets but doesn't entail the need of using non-standard renderer?

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• Implementing Domain Driven Design

  - by Steve Dunn

  Is anyone using the techniques from Domain Driven Design? I've recently read the Eric Evans book of the same name (well, most of it!) and would be interested to hear from anyone who's implemented all/some of it in a project (particularly in C#/C++) I've kept this question open ended as I'd like to see as many comments as possible, but I have a few questions in particular: 1 - Should value types be real 'value types' if the language supports it? e.g. a struct in C# 2- Is there any feature in C# that makes clearer the association between the language and the model (for instance, this is an entity, this is an aggregate etc.)

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• Projecting a 3D point to 2D screen coordinate OpenTK

  - by sinsro

  Using Monotouch and OpenTK I am trying to get the screen coordinate of one 3D point. I have my world view projection matrix set up, and OpenGL makes sense of it and projects my 3D model perfectly, but how to use the same matrix to project just one point from 2D to 3D? I thought I could simply use: Vector3.Transform(ref input3Dpos, ref matWorldViewProjection, out projected2Dpos); Then have the projected screen coordinate in projected2DPos. But the resulting Vector4 does not seem to represent the proper projected screen coordinate. And I do not know how to calculate it from there on.

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• ASP.net dealing issues with production system

  - by nettguy

  First time i am going to work on (maintenance project) application that is already in production.The application was developed in ASP.net 3.5/C# 3.0(web forms) with jQuery,Ajax,Sql server 2005 and microsoft enterprise library 4.0.,WCF services. Questions (bear with me if my question is wrong) 1) Is it possible to use Visual Studio (2008 with SP1) to debug the remote application (i.e already in production)?.What are the tools do i need to use in order to keep track the things in case something went wrong? 2) Simply looking into Log file ,will solve the issues? 3) After having done with enhancements,is it possible to directly deploy the DLLs into production server.Won't it affect the running application? Please guide me what are the procedures i need to follow.Client is ready to provide any tools for my support.(What are the area do i need to aware to handle production system) Thanks in advance.

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• iPhone autorotation for too many objects on screen

  - by Denis

  Hi! I have a BlahAppDelegate, BlahViewController and no nibs in my iPhone app project. Only some subclasses of UIView in addition. All this is situated in main.m. My app has 6 subclassed UIViews. Each of it contains 18 UIImageViews. I need to get autorotating work. Or custom rotating. Or something. For example it would be nice to fade the screen out when device is rotated, then move/resize views and then fade screen out. But I don't know how to automate it, without writing a resizing code for each of objects. Please help me if you can.

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• VS2013: How to debug a web application under a specific app domain?

  - by burnt1ce

  I have a few applications running under one app domain using port 80. I'm using port 80 to test and develop web application code. I want to take those same applications and publish them in a different app domain under a different port, 8001. This way, clients can view my applications that's using port 8001 while I develop and compile my project on port 80. However, when I debug my application, it freezes both the web applications on both port 80 and 8001. How can I debug my application under port 80 without affecting the web applications under port 8001?

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• Django ORM and multiprocessing

  - by Ankur Gupta

  Hi, I am using Django ORM in my python script in a decoupled fashion i.e. it's not running in context of a normal Django Project. I am also using the multi processing module. And different process in turn are making queries. The process ran successfully for an hr and exited with this message "IOError: [Errno 32] Broken pipe" Upon futhur diagnosis and debugging this error pops up when I call save() on the model instance. I am wondering Is Django ORM Process save ? Why would this error arise else ? Cheers Ankur

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• Why doesn't .NET find the OpenSSL.NET dll?

  - by Lazlo

  EDIT (the whole question, it was too unclear) I want to use OpenSSL.NET The OpenSSL.NET install instructions page: INSTALL Make sure you have libeay32.dll and ssleay32.dll in the current working directory of your application or in your PATH. DONE In your .NET project, add a reference to the ManagedOpenSsl.dll assembly. DONE I have put libeay32.dll and ssleay32.dll in both my bin/Debug and bin/Release directories. I have also put them in system32. Here is my FULL code: using System; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { try { OpenSSL.Crypto.RSA rsa = new OpenSSL.Crypto.RSA(); } catch (Exception e) { Console.WriteLine(e.InnerException.Message); } Console.Read(); } } } I get the following error: (Unable to load DLL 'libeay32') Here is the Process Monitor log (upon request): What am I doing wrong? Why isn't the DLL found?

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• How get Android 2.1 SDK to recognize new class: SignalStrength

  - by Doughy

  The new Android 2.1 SDK (version 7) has a new class called SignalStrength: http://developer.android.com/reference/android/telephony/SignalStrength.html I updated my SDK in Eclipse to include the 2.1 add-on, and now I am trying to use this new class. However, when I go to do an import android.telephony.SignalStrength, it can't find it. Do I have to somehow reset my project to refresh the SDK so it knows about the new libraries? How can I get it to recognize this new class? Thanks.

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• How to retrieve path for a file embedded in Resources (Resource Manager) - .net C#

  - by curiousone

  Hi, I am trying to retrieve file path for a html file that is embedded in resource (resx file) in VS2008 C# project. I want to give path of this file to native webbrowser control (PIEHtml) to be able to navigate (DTM_NAVIGATE) in my application. I know I can pass the string to this control using DTM_ADDTEXTW but since html text size is so big, I dont want to pass string to the control. I need to somehow extract the file path for this html file embedded inside resource manager. I tried using but this does not give the file path of html inside assembly: private ResourceManager resManager = new ResourceManager("AppName.FolderName.FileName", System.Reflection.Assembly.GetExecutingAssembly()); this.lbl.Text = resManager.GetString("StringInResources"); and also read Retrieving Resources in Satellite Assemblies but it did not solve my problem. Can somebody please provide info as to how to achieve this ? thanks,

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• How can I electronically transfer money to another account using Bank Transfer (BACS)

  - by Mooktakim Ahmed

  I'm working on a project where we collect payments from users using credit/debit/PayPal payments. The service is taking payments from users on behalf of a 3rd party organisation. Once we take the payment, minus fees, we want to transfer the amount to the organisations bank account. For now, what we can do is pay the organisation using Online Banking BACS bank transfer. But I would like to know if there is a way to do this automatically using an API. If we need to somehow register the 3rd parties bank account details before making transfers, this is fine. We just want to automate the whole process, since at the moment the transfer is a manual step. Are there any gateways or APIs I can use for this? In the UK?

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• DefaultSchedulerService in ASP.NET application

  - by Samir P

  Hi, My project has a requirement to implement look-ahead caching i.e. triggering another request on invokation of a specific request. The following details in short the implementation - HttpModule parses the SOAPRequest and matches entry in a configuration file for look-ahead candidate. If the request matches, it prepares the Parameters dictionary and starts appropriate workflow. Single workflow runtime is used across all requests is ensured through initializing the runtime instance at Application_Start event and stored in Application Dictionary. Using persistence service and DefaultScheduler service. We can't implement windows service model, as current requirement mandates passing the SOAPRequest parameters as arguments. ManualSchedulerService is not in contention due to synchronous nature of it's actual behaviour. Still the performance is pretty bad and product team is not happy. Can anybody suggest me better solution? Thanks, Samir

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• Definition could not be found error compiling ClassReference in CSS file to Swf file

  - by Roaders

  Hi All I am compiling my css files to swf files and loading them at run time. I have no problem compiling these and using ClassReference statements most of the time: .miniCashLadderGridStyle { color : #2a2a2a; backgroundAlpha : 0; borderSkin : ClassReference("mx.skins.ProgrammaticSkin"); headerSortSeparatorSkin : ClassReference("mx.skins.ProgrammaticSkin"); horizontalSeparatorSkin : ClassReference("company.assets.GridHorzDivLine"); verticalSeparatorSkin : ClassReference("company.assets.GridVertDivLine"); } That works fine. The assets come from a seperate swc, However this: header-background-skin : ClassReference("company.view.grid.skin.HeaderBackground"); Does not work. The difference is that the HeaderBackground is a class in the same project as the css file. That does compiel fine if I move the style into my mxml file though. I wonder if the compiler uses different source paths when compiling the css fiels or something. This is in FlashBuilder 4 build 269271 SDK 13963

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• When should assertions stay in production code?

  - by Carl Seleborg

  Hi all, There's a discussion going on over at comp.lang.c++.moderated about whether or not assertions, which in C++ only exist in debug builds by default, should be kept in production code or not. Obviously, each project is unique, so my question here is not so much whether assertions should be kept, but in which cases this is recommendable/not a good idea. By assertion, I mean: A run-time check that tests a condition which, when false, reveals a bug in the software. A mechanism by which the program is halted (maybe after really minimal clean-up work). I'm not necessarily talking about C or C++. My own opinion is that if you're the programmer, but don't own the data (which is the case with most commercial desktop applications), you should keep them on, because a failing asssertion shows a bug, and you should not go on with a bug, with the risk of corrupting the user's data. This forces you to test strongly before you ship, and makes bugs more visible, thus easier to spot and fix. What's your opinion/experience? Cheers, Carl See related question here

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• Help a Python newbie with a Django model inheritance problem

  - by Joshmaker

  I'm working on my first real Django project after years of PHP programming, and I am running into a problem with my models. First, I noticed that I was copying and pasting code between the models, and being a diligent OO programmer I decided to make a parent class that the other models could inherit from: class Common(model.Model): self.name = models.CharField(max_length=255) date_created = models.DateTimeField(auto_now_add=True) date_modified = models.DateTimeField(auto_now=True) def __unicode__(self): return self.name class Meta: abstract=True So far so good. Now all my other models extend "Common" and have names and dates like I want. However, I have a class for "Categories" were the name has to be unique. I assume there should be a relatively simple way for me to access the name attribute from Common and make it unique. However, the different methods I have tried to use have all failed. For example: class Category(Common): def __init__(self, *args, **kwargs): self.name.unique=True Spits up the error "Caught an exception while rendering: 'Category' object has no attribute 'name' Can someone point me in the right direction?

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