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  • traverse a binary decison tree using python?

    - by kaushik
    how to traverse a binary decision tree using python language. given a tree,i want know how can we travesre from root to required leaf the feature of the required leaf are given in an dictionary form assume and have to traverse from root to leaf answering the questions at each node with the details given in feature list.. the decision tree node has format ((question)(left tree)(right tree)) while traversing it should answer question at each node and an choose left or right and traverse till leaf?

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  • Android & Web: What is the equivalent style for the web?

    - by Legend
    I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for the web? I mean, with a predefined list of widgets that can be defined using a markup language and then control them using code? I have come across Google's Web Toolkit that does something like this but I'd like to hear what other's think as well.

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  • conversion from C++ to C

    - by Dave
    Hi I am interested by converting some code from C++ to C (mostly because i need to use the library with/from other C program and other language) . C is a better gateway for that I am interested to replicate few C++ concept like inheritance for inst . Does anyone know good references or has already work on some similar issues. For inst how to deal with inheritance , adding new members variable/ methods to child class , ... Thx for your help

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  • Have you actually convinced anybody to Scala?

    - by Lukasz Lew
    I had limited success myself. I was able to hype a few persons about Scala. But in fact none of them made a meaningful effort to try to switch (usually from Java). I would like to read both success and failure stories here. Both long tries and short ones. My goal is to find ways of presenting Scala to another person, friend, co-worker (not an audience) that will make them want to use this great language.

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  • BSoD when creating threads

    - by Behrooz
    I am trying to create +5 threads synchronously so there shouldn't be any concurrency error. Code: System.Threading.Thread t = new System.Threading.Thread(proc); t.Start();//==t.BlueScreen(); t.Join(); Is darkness a feature ? I am doing something wrong? OS:Microsoft windows vista(unfortunately) x64 Language:C# 3.0|4.0 .Net version:3.5|4

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  • AviSaveOptions() dialog window is distorted!

    - by Roey
    Hi All. I'm using windows XP , hebrew version. I am trying to save an AVI file using the Video For Windows API in C++, when I run the AviSaveOptions() function, the dialog opens as a thin unclickable strip at the corner of the screen. Would it have anything to do with the language (Hebrew)? maybe with the vfw driver itself? what might cause a windows dialog window to be distorted/invisible? thanks Roey

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  • What are good introductory resources for expert developers new to the .NET framework?

    - by Craig Shearer
    I have a client who wants to transition off their old environment into .NET. The client has a good grounding in basic OO concepts (their existing development environment supports this) and are expert developers, but need a quick "up to speed" introduction to the .NET framework (C# as the chosen language) for building Line of Business applications (they're keen on Silverlight). Any recommendations?

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  • convert Ruby to C languge

    - by alaamh
    I have seen this sample written in Ruby code, how i can simulate it in C language? Open3.popen3(command) do |stdin, stdout, stderr| @stop_stdin = stdin while !stdout.eof do output = stdout.read(1024 * 100) list_pipes.each do |out| out.print output end end end

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  • I've heard that LaTeX is Turing complete. Are there any programs written in LaTeX?

    - by ire_and_curses
    It's possible to do interesting things with what would ordinarily be thought of as typesetting languages. For example, you can construct the Mandelbrot set using postscript. It is suggested in this MathOverflow question that LaTeX may be Turing-complete. This implies the ability to write arbitrary programs (although it may not be easy!). Does anyone know of any concrete example of such a program in LaTeX, which does something highly unusual with the language?

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  • How to show telugu font in emulator correctly

    - by raman
    i am developing an application in which i get the unicode using json and it showing correctly the unicode when i am trying to see in the debug mode,Now the problem is that how can i show in the emulator,i have using the UTF-8 for rendering the unicode bt it didn't show ? And when i am trying to show in using the setTypeface it showing the Telugu font in a simple program even but not correctly.i am using the Pothana2000.ttf to convert the telugu unicode to Telugu language. Suggestions welcome.Need reply urgently.

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  • DB management for Heroku apps

    - by zetarun
    Hi all, I'm fairly new to both Rails and Heroku but I'm seriously thinking of using it as a platform to deploy my Ruby/Rails applications. I want to use all the power of Heroku, so I prefer the "embedded" PostgreSQL managed by Heroku instead of the addon for Amazon RDS for MySQL, but I'm not so confident without the possibility to access my data in a SQL client... I know that in a well made app you have no need to access DB, but there are some situations (add rows to a config table, see data not mapped in a view, update some columns for debugging issues, performance monitoring, running queries for reporting, etc.) when this can be good... How do you solve this problem? What's you experience in a real life app powered by Heroku? Thanks!

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  • C struct memory layout?

    - by Eonil
    I have C# background. Very newbie to low level language like C. In C#, memory layout by compiler by default, and I have to specify some special attribute to override this behavior for exact layout. As I know, C does not re-align by default. But I heard there's a little re-aligning behavior which very hard to find. Can I know about C's memory layout behavior? (what should be re-aligned and not)

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  • Flex Button Size Setting For Implementing Multilanguage

    - by user961496
    I'm creating a flex app with multilanguage support. But there's a problem with the design when I try to implement multilanguage support. For example : In Chinese : ?? In English : Good Morning The button size is not enough when I change the language to English. Although I set the button width with dynamic size, but the button will closing the objects around it Code is here http://pastebin.com/7fDB2VU2

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  • How do you use a flash object as a link?

    - by Matthew Crumley
    Is it possible to use a flash document embedded in HTML as a link? I tried just wrapping the object element with an a like this: <a href="http://whatever.com"> <object ...> <embed ... /> </object> </a> In Internet Explorer, that made it show the location in the status bar like a link, but it doesn't do anything. I just have the .swf file, so I can't add a click handler in ActionScript.

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  • Why is the content of slice not changed in GO?

    - by Kid
    I thought that in GO language, slices are passed by reference. But why the following code doesn't change the content of slice c? Am I missing something? Thank you. package main import ( "fmt" ) func call(c []int) { c = append(c, 1) fmt.Println(c) } func main() { c := make([]int, 1, 5) fmt.Println(c) call(c) fmt.Println(c) } The result printed is: [0] [0 1] [0] while I was expecting [0] [0 1] [0 1]

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  • Accessing Erlang business layer via REST

    - by Polyn
    For a college project i'm thinking of implementing the business layer in Erlang and then accessing it via multiple front-ends using REST. I would like to avail of OTP features like distributed applications, etc. My question is how do I expose gen_server calls/casts to other applications? Obviously I could make RPC calls via language specific "bridges" like OTP.net or JInterface, but I want a consistent way to access it like REST.

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  • writing a scrip in java

    - by giri
    Hi I am working with telecom company.I am familiar with java programming language.But now I have a task to write a script , with linux operating systems.I have to write a script for fetching data from other computer and check some conditions. How can I do that using Java. Plz help me. Thanks.

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  • How to reference a particular JSON in a function call.

    - by Jane Wilkie
    Hi guys! I have two javascript routines.. the first one declares some JSON and it contains a function that takes two arguments, the first argument being the json object that needs traversing and the second argument is the tab that the rendering is done in. The second routine merely passes the name of the JSON that needs traversing and tab to render in. The code is below.... <script language="JavaScript1.2" type="text/javascript"> var arr = [ {"id":"10", "class":"child-of-9", "useless":"donotneed"}, {"id":"11", "class":"child-of-10", "useless":"donotneed"}]; var arrtwo = [ {"id":"12", "class":"child-of-12", "useless":"donotneed"}, {"id":"13", "class":"child-of-13", "useless":"donotneed"}]; function render_help(json,tab){ var html=''; for(var i=0;i<json.length;i++){ var obj = json[i]; for(var key in obj){ var attrName = key; var attrValue = obj[key]; if (attrName == "id"){ html = html +'<B>'+attrValue+'</B>'+'<BR><BR>'; }else if (attrName == "class"){ html = html + attrValue + '<BR><BR>'; } } } document.getElementById(tab).innerHTML=(html); } </script> <script language="JavaScript1.2" type="text/javascript"> render_help(arr,"helptab"); </script> Various testing and strategically placed alert boxes indicate that the tab parameter is being passed and interpreted correctly. I know this because when I change .... document.getElementById(tab).innerHTML=(html); to document.getElementById(tab).innerHTML=("Howdy"); and it renders "Howdy" just fine. Putting an alert box (alert(json)) in to check the value of json yields.... [object.Object],[object.Object] The JSON object remains elusive. For the purposes of this scripting I need the JSON "arr" to be iterated over. I feel like the answer is fairly obvious so far no luck. Admittedly I am new with Javascript and I am apparently missing something. Does anyone have a clue as to what I'm overlooking here? Happy New Year to you all! Janie

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  • haskell sorting

    - by snorlaks
    Hello, How can it be done in most simply way to write (or maybe there is something embedded in haskell) function which takse as arguments list of tuples (String, Int) and Int x and return top x tuples as list according to x value. I wonder if its possible to write a function which also takes 3 argument which is the name of (or index) of filed in tuple according to which sorting has to be done. What are best solutions to make it quite generic, Im new to haskell I would do somethink like that in imperative languages without any problems but I want to know how to write it in quite good way in haskell, thanks for help

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  • ASP.NET javascript close page after timeout?

    - by AliRiza Adiyahsi
    I want show an information page after success db opartions. And after the info I want to close each pages (information page and main page) I wrote this in button oncommand event: //but this code does not work Response.Write("<script language='javascript'>setTimeout('self.close();',3000);</script>"); at the same time, I want to show an information message. And then I want to close all, after three seconds.I hope I could explain :) Thanks.

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  • Guidelines for LBS Mobile application development

    - by Suriyan Suresh
    i need some help!, i am planning to develop such LBS Mobile Application which find nearest things based on gps data from mobile. 1.what are the best free and (preferably) open source technologies for development?. 2.What programming language to use for development of such application?. 3.what are the points to be considered? I need the general overview of the requirements for planning, I was interested in having a general understanding of the data, tools, and frameworks required to accomplish the job.

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