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• Passing a filepath to a R function?

  - by Philipp

  Hi everybody, I tried to pass a filepath to a function in R, but I failed =/ I hope someone here can help me. >heat <- function(filepath) { chicks <- read.table(file=filepath, dec=",", header=TRUE, sep="\t") ... } When I call the function, nothing happens... >heat("/home/.../file.txt") ... and "chicks" is not found >chicks Error: Object 'chicks' not found What is the correct way to pass a path to a function? Best wishes from Germany, Phil

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• Hibernate Lazy Loading Proxy Incompatable w/ Other Frameworks

  - by bowsie

  I've come across several instances where frameworks that take POJOs to do some work crap-out with proxied hibernate beans. For example if I xml annotate a bean for framework X and pass it to framework X it doesn't recognise the bean because it is passed the proxied object - which has no annotations for framework X. Is there a common solution to this? I'd prefer not to define the bean as eager loaded, or turn of lazy-loading anywhere in the application. Thoughts? Thanks.

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• What's the Microsoft Ajax equivalent to jquery.ajaxSetup() or .ajaxError()?

  - by Seth Petry-Johnson

  I have an ASP.NET MVC site that uses both Microsoft Ajax [Ajax.BeginForm()] and jQuery to make asynchronous requests. I want to configure both frameworks such that a generic error handler is automatically attached if the developer does not explicitly specify a failure callback. In jQuery I can accomplish this with either .ajaxSetup() or .ajaxError(). What is the equivalent in the Microsoft Ajax client library? I'm fairly sure it's something in the Sys object but I can't find it...

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• Decide which caching startegy to use ?

  - by hib

  Hi all, I want to cache my loaded data so that I can reduce my application start time . I know several strategies to store application data i.e. core data, nsuserdefaults , archiving . Now my scenario is that suppose that I have array of maximum 10 objects each object having 5 fields . So I can not decide which strategy to store this array an later retrieving the same . Thanks .

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• Get attribute of JQuery ui.draggable

  - by Jon

  Hi Everyone, I'm using JqueryUI for drag and drop on one of my pages and for some reason I can't seem to get an attribute of the ui.draggable object being passed into my droppable drop event. ui.draggable.attr("src") and $(ui.draggable).attr("src") both return undefined, however if I type ui.draggable.html() I will get the html back. Any ideas?

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• Create a table using obj-c for MAC and display values in the table.

  - by lohith

  Can anyone guide me how to create a table using obj-c for MAC. The program should read values from an NSArray object and display the values on the table.I wld appreciate if anyone helped me out.

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• [Silverlight] MessageBox Black Page

  - by nCdy

  I do Silverlight MVC project on VWDEE2010 when I do private void button1_Click(object sender, RoutedEventArgs e) { MessageBox.Show("I am a button"); } Message shows on BlackScreen on background and only when I click OK it returnts me to my page. Why black page and what ways to avoid ? Thank you.

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• Unity 2 - Why has the BuildUp method changed?

  - by hayrob

  I am starting to use Unity 2 , having happily used earlier versions. I notice that the IUnityContainer.BuildUP(object obj) method has been removed. Why has this happened?

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• variables reference value of string

  - by xdevel2000

  How can I get the reference value of a string object? If I hava a class like class T() { } T t = new T(); System.out.println( t); print out T@a3455467 that is the reference value inside t but for string? maybe with method hashCode()??

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• How to cancel a touch sequence

  - by Alex

  I have an UIImage view that responds to touch events. I want to cancel the touch sequence if the touch goes outside of certain bounds. How can I do that? I know that I can inspect the coordinates of the touch object, what I don't know is how to cancel the sequence. I don't see any event in the API that allows for that.

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• simple question of pushViewController

  - by user217572

  messagecontroller is nothing but object of initialize nib file. [self.navigationController pushViewController:messageController animated:YES]; this statement executes in normal condition this statement also works on state maintainace testing , this line executes properly but not open new view ,why?

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• Python - how to check if weak reference is still available

  - by Alex

  Hi all, I am passing some weakrefs from Python into C++ class, but C++ destructors are actively trying to access the ref when the real object is already dead, obviously it crashes... Is there any Python C/API approach to find out if Python reference is still alive or any other known workaround for this ? Thanks

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• Difference between abstract class and interface

  - by nectar

  A class implementing an interface has to implement all the methods of the interface, but if that class is implementing an abctract class is it necessary to implement all abstract methods? If not, can we create the object of that class which is implementing the Abstract class???

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• ASP 0177 : 800401f3 error in classic ASP page.

  - by Arup Chaudhury

  I have some classic ASP pages showing error all of a sudden. The error is as follows: Server object error 'ASP 0177 : 800401f3' Server.CreateObject Failed /CustCare/mainwebpage_Midas.asp, line 84 Invalid ProgID. For additional information specific to this message please visit the Microsoft Online Support site located at: http://www.microsoft.com/contentredirect.asp. Now line 84 is as follows: Set MyCon = Server.CreateObject("ADODB.Connection") What can be the reason that is causing this error and how to solve it. Please suggest.

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• detect the most used colour in an image using python

  - by sree01

  Hi, I want to find the most used colour in an image using python. for example detect the colour of the object in the following image http://www.shopcrazy.com.ph/wp-content/images/2007/02/shiny-bags-01.jpg. how to detect the base colour from the RGB codes(example - red in the above image).

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• Kernel.Select from ruby causing Thread(0x7f1a159abd58): deadlock (fatal)

  - by ElTren

  I don't have multiple threads or anything like that, and I thought select() was non-blocking, however, as I add more items to an array used as the IO object, and using select(), after about 1000~ items in the array (with some interaction on them).. the whole script exits with a deadlock / fatal error... Hope any1 could help Thank you so much!

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• How to use WebRequest to POST some data and read response?

  - by Ryan

  Need to have the server make a POST to an API, how do I add POST values to a WebRequest object and how do I send it and get the response (it will be a string) out?

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• Use the serialVersionUID or suppress warnings?

  - by Okami

  Dear all, first thing to note is the serialVersionUID of a class implementing Interface Serializable is not in question. What if we create a class that for example extends HttpServlet? It also should have a serialVersionUID. If someone knows that this object will never be serialized should he define it or add an annotation to suppress those warnings? What would you do and why? Thanks for sharing your thoughts. Okami

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• Horizontal scrolling in a wx.RichTextCtrl

  - by Sam

  I have a RichTextCtrl created as follows: self.userlist = wx.richtext.RichTextCtrl(self, style=wx.TE_MULTILINE|wx.TE_READONLY|wx.HSCROLL) It all works fine, except for the wx.HSCROLL style. If I change the RichTextCtrl to a regular TextCtrl, it correctly horizontal scrolls on long lines, rather than wrapping, but on the RichTextCtrl it wraps regardless. Is there an easy way to make it scroll horizontally? (I do, unfortunately, need the RichTextCtrl's featureset for this object.)

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• Finding web source of Drag&Drop with Qt

  - by UncaughtException

  I'm trying to implement a simple notebook in Qt. Microsoft OneNote allows text or an image from a website to be inserted by Drag&Drop with an attached link to the source that looks like this for the stackoverflow logo on the 'ask' page: Inserted from <http://stackoverflow.com/questions/ask. With the QT dropsite example, I examined all the information thats transported by the QMimeData object, but didn't find something really helpful. Do you know a way to do this in pure Qt or at least with not so much platform-dependant code?

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• foo and _foo - about variables inside a class

  - by kame

  class ClassName(object): """ """ def __init__(self, foo, bar): """ """ self.foo = foo # read-write property self.bar = bar # simple attribute def _set_foo(self, value): self._foo = value def _get_foo(self): return self._foo foo = property(_get_foo, _set_foo) a = ClassName(1,2) #a._set_foo(3) print a._get_foo() When I print a._get_foo() the function _get_foo prints the variable self._foo . But where does it come from? self._foo and self.foo are different, aren't they?

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• Java for-each loop - Is it possible to get the index?

  - by Amir Rachum

  Is it possible to use a for-each loop in Java and somehow still get the index of the iteration? for (Object obj : ListOfObject) { // I want to know the index of obj! }

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• pattern to transfer search model to dao

  - by zeroed

  We have a dao as a project (jar file). Clients use its interfaces and factories to operate with database. Using standard CRUD operations, dao allows you to search an entity by some search criteria. What is the best way to represent this criteria? Is transfer object appropriate pattern in this situation? How should client create SearchModel instance? Please, share. Regards.

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• Having an issue while trying to implement In-App Purchase

  - by Raymond

  This is my first time to implement In-App purchase and I am using the tutorial located here: Ray Wenderlich Now I am sure this is something simple, but I am having issues figuring out, so I figured I would ask all of the gurus out here. The compiler is saying that _products is Use of undeclared identifier - (void)productPurchased:(NSNotification *)notification { NSString * productIdentifier = notification.object; [_products enumerateObjectsUsingBlock:^(SKProduct * product, NSUInteger idx, BOOL *stop) { if ([product.productIdentifier isEqualToString:productIdentifier]) { *stop = YES; } }]; }

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• Indirect load of type fails in PowerShell

  - by Dan

  When invoking [System.Configuration.ConfigurationManager]::GetSection("MySection") from within a PowerShell prompt, it throws an exception because the assembly containing the type represented by "MySection" in the app config is unable to be loaded. However, I have previously loaded the assembly containing that type, and I am even able to instantiate the type directly using 'new-object'. How is the ConfigurationManager resolving types such that the assemblies already loaded into the PowerShell app domain are not visible to it?

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