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  • the easiest way to convert matrix to one row vector

    - by niko
    Hi, Does anyone know what is the best way to create one row matrix (vector) from M x N matrix by putting all rows, from 1 to M, of the original matrix into first row of new matrix the following way: A = [row1; row2, ..., rowM] B = [row1, row2, ..., rowM] Example: A = [1 1 0 0; 0 1 0 1] B = [1 1 0 0 0 1 0 1] I would be very thankful if anyone suggested any simple method or perhaps points out a function if it already exists that could generate matrix B from original matrix A.

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  • Python mechanize to follow image links?

    - by Shark
    mechanize's Browser class is great and it's follow_link() function is great too. But what to do with this kind of links: <a href="http://example.com"><img src="…"></a> Is there any way to follow such links? The text attribute of this type of links is simply '[IMG]', so AFAIK, there is no way to differentiate such links. Any help would be appreciated.

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  • Use of XMLHttpRequest in Dashboard widget failing

    - by Peter Zion
    I am unable to get an XMLHttpRequest object to work correctly in a Dashboard widget I am writing. I've isolated it to a trivial example not working in the global scope of the main.js file: xhr = new XMLHttpRequest; xhr.open( 'GET', "http://google.com", false ); xhr.send(''); When the last line is executed I get the error "ABORT_ERR: XMLHttpRequest Exception 102" (this is in the Dashcode debugger). Does anyone have any idea what could be wrong here?

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  • Getting Active Session counts with JMX (Java Management Extensions) API

    - by bLee
    I'm trying to use JMX API to get active session counts for a web application. Is it possible to use JMX API to get this kind of information? If yes, how reliable would it be? Any example code on how to get this done? I've been reading JMX tutorial and documentation, but they are giving me the overview of what the technology is. I just can't pinpoint to what I need, yet.

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  • How to create a web crawler/spider/robot?

    - by Chris
    Is there a way to make a web robot like websiteoutlook.com does? I need something that searches the internet for URLs only...I don't need links, descriptions, etc. What is the best way to do this without getting too technical? I guess it could even be a cronjob that runs a PHP script grabbing URLs from Google, or is there a better way? A simple example or a link to more information would be much appreciated.

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  • Android: TabHost

    - by paradroid666
    Hi, I have a question in regards to http://developer.android.com/resources/tutorials/views/hello-tabwidget.html Lots of issues are already discussed but this example only works for me if I in the onCreate() method do NOT use setContentView(R.layout.main); Why is that? What do I have to do if I want to mix a tab layout with other elements? Thanks. paradroid666

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  • How rspec works with rails3 for integration-tests?

    - by makevoid
    What I'm trying to ahieve is to do integration tests with webrat in rails3 like Yehuda does with test-unit in http://pivotallabs.com/talks/76-extending-rails-3 minute 34. an example: describe SomeApp it "should show the index page" visit "/" body.should =~ /hello world/ end end Does someone knows a way to do it?

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  • PHP bitwise left shifting 32 spaces problem and bad results with large numbers arithmetic operations

    - by Victor Stanciu
    Hello, I have the following problems: First: I am trying to do a 32-spaces bitwise left shift on a large number, and for some reason the number is always returned as-is. For example: echo(516103988<<32); // echoes 516103988 Because shifting the bits to the left one space is the equivalent of multiplying by 2, i tried multiplying the number by 2^32, and it works, it returns 2216649749795176448. Second: I have to add 9379 to the number from the above point: printf('%0.0f', 2216649749795176448 + 9379); // prints 2216649749795185920 Should print: 2216649749795185827

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  • PowerShell - Set Alias for Loaded Assembly

    - by Uros Calakovic
    I use this code to load a .Net assembly to PowerShell: [System.Reflection.Assembly]::Load("System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089") | out-null [System.Windows.Forms.MessageBox]::Show("Hello world") Can I set an alias for an assembly (for example 'System.Windows.Forms' = 'Forms') so that I don't have to type the assembly full name when calling static methods like MessageBox.Show()?

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  • Recursion Vs Loops

    - by sachin
    I am trying to do work with examples on Trees as given here: http://cslibrary.stanford.edu/110/BinaryTrees.html These examples all solve problems via recursion, I wonder if we can provide a iterative solution for each one of them, meaning, can we always be sure that a problem which can be solved by recursion will also have a iterative solution, in general. If not, what example can we give to show a problem which can be solved only by recursion/Iteration? --

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  • when appending in a file using ms-dos commands how to append immediately after the next word in the

    - by Arunachalam
    when appending in a file using ms-dos commands how to append immediately after the next word in the file ? for example echo here is today's date >c:\arun.txt date /t >> c:\arun.txt here in arun.txt its written has actual output: here is the date of 29-03-2010 but i want the output to be like this: here is the date of 29-03-2010 how to avoid carrage return while appending

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  • Multiple Git repositories in one directory

    - by Jakob
    Hello, I would like to deploy a directory to multiple developers having different permissions. So this is one thing Git cannot do. What about creating two repositories in one directory and assigning them different file lists by excluding files managed by the other repository with the .gitignore file. Example: /www/project/.git for all files execpt in /www/project/css /www/project/css/.git - only files in this directory Has anyone tried this solution? Or are there any better ways to handle this issue? Regards, Jakob

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  • How to map XMLType with JPA/Hibernate

    - by Moorthy
    How to persist XMLType column via JPA/Hibernate? As per oracle documentation, there are two ways in declaring storage clause for XMLType. They are, LOB and Object-Relational. I dont want to go with LOB. I have schema and register into database. I have not have example on how to design my Entity for XMLType. Does any one know please share it?

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  • Append class="external" to external links.

    - by K3
    What is the php code to append class="external" to links that are posted and are not the domain. For example my site is www.mysite.com and you post a link to www.mysite.com/news and a link to www.yoursite.com How do I set it so only non "mysite.com" links have the class specified?

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  • JSOn.Net library JsonConvert

    - by ozsenegal
    I'm using http://json.codeplex.com library.Im trying to convert XML to JSON and vice-versa. However they have an example,using "JsonConvert" class XmlDocument doc = new XmlDocument(); doc.LoadXml(xml); string jsonText = JsonConvert.SerializeXmlNode(doc); I cant find "JsonConvert" in namespace "Newtonsoft.Json".Only class i've found is "JavaScriptConvert". Any ideas?

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  • GNU Emacs23: cedet troubles

    - by Xavier Maillard
    Hi, Since I switched to CEDET as shipped with recent emacs release (23.2), CEDET does not work reliably anymore. For example I am no longer able to regenerate an EDE project. After looking aroud, it seems that all CEDET templates are missing from the tarball. Does anyone know how I can workaround this ? Regards

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  • Does WF4 have the ability to search for instances?

    - by racingcow
    Hello, I have a WF4 workflow service deployed in AppFabric. Is there any built-in way to do a generic search across all currently active workflow instances? For example, "get me a list of all active instances that have variable x = 5"? If someone could point me in the right direction on this it would be much appreciated.

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  • it means quick-select algorithm?

    - by matin1234
    Hi, I have a question from my homework. I think my teacher needs an algorithm like quick select for this question is this correct? The question: Following a program (Subroutine) as a "black box" is given (for example, inside it is not clear and we do not even inside it) with the worst case linear time, can find the middle of n elements. Using this black box, get a simple linear algorithm that takes input i and find the element which its rank is equal to i (among the n elements) Thanks.

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  • LineChart in WPF

    - by Maurizio Reginelli
    I havo to implement a custom control in WPF which contains a line chart. This control should permit to an user to define, with a control template, the number of grids, the font family and the font size of axis labels and other parameters. I'm wondering if one of you can address me to an example or give me some advice. Thank you in advance.

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  • How to loop through columns in an oracle pl/sql cursor.

    - by Lloyd
    I am creating a dynamic cursor and I would like to loop over the columns that exist in the cursor. How would I do that? For example: create or replace procedure dynamic_cursor(empid in varchar2, RC IN OUT sys_refcursor) as stmt varchar2(100); begin stmt := 'select * from employees where id = ' || empid; open crs for stmt using val; for each {{COLUMN OR SOMETHING}} --TODO: Get this to work loop; end;

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