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  • [R] How to create a data.frame with a unknow number of columns ?

    - by Olivier
    Hello I would like to create, in a function, a boucle to create a data.frame with a variable number of columns. WIth something like : a = c("a","b") b = c(list(1,2,3), list(4,5,6)) data.frame(a,b) I would like to get a data-frame like : a 1 2 3 b 4 5 6 Instead of I obtain : a 1 2 3 4 5 6 b 1 2 3 4 5 6 Thank you ! PS : I also try with rbind, but it's doesn't work...

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  • intercepting http traffic to/from Google Chrome

    - by anjanb
    I use Fiddler for intercepting HTTP traffic when using IE or Firefox. Now that I'm using chrome for most of my day, I would like to be able to see the http traffic using something like Fiddler. What do chrome developers use ? I prefer something automatic like Fiddler but something that needs config, etc would also help. P.S : I'm on windows vista 64-bit HOME PREMIUM, if that's important.

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  • PHP object class variable

    - by mck89
    I have built a class in PHP and I must declare a class variable as an object. Everytime I want to declare an empty object I use: $var=new stdClass; But if I use it to declare a class variable as class foo { var $bar=new stdClass; } a parse error occurs. Is there a way to do this or must I declare the class variable as an object in the constructor function? PS: I'm using PHP 4.

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  • Get Windows Last Reboot Timestamp?

    - by David.Chu.ca
    I have a PC on remote connected by network, but it occasionally crashes or is restarted by remote users. After the restart, some services and applications have to be in running status. So I would like to find out the reboot as soon as possible. I think PS may be a good choice with some scripts so that I could make remote call to get the last reboot timestamp information. Is there any way to get a remote Windows XP last reboot timestamp by using PowerShell 2.0?

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  • Replacing python docstrings

    - by tomaz
    I have written a epytext to reST markup converter, and now I want to convert all the docstrings in my entire library from epytext to reST format. Is there a smart way to read the all the docstrings in a module and write back the replacements? ps: ast module perhaps?

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  • image not shown in dvi after latexing

    - by Tim
    Hi, I include several images of eps format in latex. After latex command, there are some of the images missing in the dvi file. Not sure if it is related to the image size, most of the images missing have size around 83kB while those shown up have a size less than 40kB. After conversion from dvi to ps, the images are all back. Just wonder what is the reason causing the images missing in dvi file? Thanks and regards!

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  • print_any for F# 2.0

    - by user79339
    Hi, I am upgrading an old version 1.0 F# project to 2.0 using visual studio 2010. So many changes. I can't seem to find the print_any command that was littered all over the place in the old books and samples. I have installed powerpack but can't find it there either. Any idea where i can find this command. PS: I know I can easily implement it myself but was curious where this is now.

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  • mount command pid

    - by lakshmipathi
    Trying to mount a device and get the pid of mount command. cmd="/bin/mount /dev/sda1 /mnt" os.system(cmd) Now how to obtain the pid of mount command? There plenty of mounted device available on my system ,something like ps | grep mount won't work.

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  • How to restrict code from developers

    - by Kelvin
    My company is planning in hiring outsourcers to work for us, but concerned to give whole existing code to outside world. What is the proper way to deal with security of sharing code in such cases? Is it possible to restrict part of code for developers? So each of them could work on their project without having access to whole repository. P.S. The code we have is very integrated, and its hard to extract "one module", each module can use files from different locations. Thanks in advance

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  • Exporting DLL C++ Class , question about .def file

    - by Vhaerun
    I want to use implicit linking in my project , and nmake really wants a .def file . The problem is , that this is a class , and I don't know what to write in the exports section . Could anyone point me in the right direction ? The error message is the following : NMAKE : U1073: don't know how to make 'DLLCLASS.def' P.S: I'm trying to build using Windows CE Platform Builder .

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  • HTML tag to select Flash-player plugin to play flv

    - by Microkernel
    Hi all, If I have .flv files on my server at some location like http://www.example.com/archive/test.flv. In HTML page how can I tell the browser to use Flash player to play this video like youtube videos are played. Can someone tell me how to do this? Regards, Microkernel PS: I am noober than noob in web dev, so please give some code snippet or answers that beginners like me can understand. Thank you

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  • How can I search for a text and fill/click on a link with Selenium?

    - by Shady
    Here's the deal: Is there a way to search for an input name or type witch is not precise and fill it? For example, I want to fill any input with the name email with my email, but I maybe have some inputs named email-123, emailemail, emails etc... Is there a way to do something like * email * ? And how can I click on a link verifying some text that could be on the link, or above the link, or close, or at class etc ? ps: I'm using selenium ide with firefox

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  • jQuery Stop non-css animation

    - by Mark
    I'm trying to stop a non-css animation: http://jsbin.com/aqute4/4/edit Button 1 starts the animation nicely, totally lost on how to stop it though, since .stop() seems to need a DOM element... rather than a random object. Thanks in advance. PS: Original code comes from: http://james.padolsey.com/javascript/fun-with-jquerys-animate/

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  • An inaccessible class. VS2010.

    - by Mishgun_
    I realy dont know what the problem is with VS2010. I created a class, and when I'm trying create an exemplar of the class I get an error: "Error xxx is inaccessible due to its protection level. Example: public class Person { Person(string name, int age) { this.name = name; this.age = age; } public string name; public int age; } class Program { static void Main(string[] args) { Person ps = new Person("Jack", 19); } }

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  • WPF ComboBox drop-down (data bound) values not changing

    - by Jefim
    I bind the ItemsSource of a ComboBox to an ObservableCollection<MyClass>. In code I change the collection (e.g. edit the MyClass.Name property). The problem: the change is not reflected in the dropdown box if the ComboBox, yet when I seled the item from the dropdown it is displayed correctly in the selected item box of the ComboBox. What's going on? :) PS MyClass has INotifyPropertyChanged implemented

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  • Coda slider not working inside Tabbed Ajax

    - by voyageur
    I included the full page that has Coda slider (including header and scripts) inside a tabbed ajax script, but it failed to load ! link below. Is it not possible to have two java scripts load in one page? Thanx Web site here P.S. I asked the question in another post, but I got an answer that fixed things partially so I thought by accepting the answer the post is closed.

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  • What is the motivation behind c++0x lambda expressions?

    - by LoudNPossiblyRight
    I am trying to find out if there is an actual computational benefit to using lambda expressions in c++, namely "this code compiles/runs faster/slower because we use lambda expressions" OR is it just a neat development perk open for abuse by poor coders trying to look cool? Thanks. PS. I understand this question may seem subjective but i would much appreciate the opinion of the community on this matter.

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  • When, if ever, is "number of lines of code" a useful metric?

    - by user15071
    Some people claim that code's worst enemy is its size, and I tend to agree. Yet every day you keep hearing things like I write blah lines of code in a day. I own x lines of code. Windows is x million lines of code. Question: When is "#lines of code" useful? ps: Note that when such statements are made, the tone is "more is better".

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