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  • creating matrix with probabilities

    - by John Chan
    Hi all, I want to generate a matrix of NxN to test some code that I have where each row contains floats as the elements and has to add up to 1 (i.e. a row with a set of probabilities). Where it gets tricky is that I want to make sure that randomly some of the elements should be 0 (in fact most of the elements should be 0 except for some random ones to be the probabilities). I need the probabilities to be 1/m where m is the number of elements that are not 0 within a single row. I tried to think of ways to output this, but essentially I would need this stored in a C++ array. So even if I output to a file I would still have the issue of not having it in array as I need it. At the end of it all I need that array because I want to generate a Market Matrix file. I found an implementation in C++ to take an array and convert it to the market matrix file, so this is what I am basing my findings on. My input for the rest of the code takes in this market matrix file so I need that to be the primary form of output. The language does not matter, I just want to generate the file at the end (I found a way mmwrite and mmread in python as well) Please help, I am stuck and not really sure how to implement this.

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  • Lines-of-code counting for many C# solutions

    - by Eric
    I am currently researching a solution for counting lines of code in C#. I pretty much need a combination of the following two tools: http://richnewman.wordpress.com/2007/07/01/c-and-vbnet-line-count-utility/ http://www.locmetrics.com/index.html My problem is that I need to recursively scan a folder containing a lot of visual studio solutions. So can't really use the first tool without any major work on its code, as it's only able to scan a single solution at a time. But I also need to split the results for each solution, preferably even the contained projects. This disqualifies the second tool I found. I also found NDepend which suffers from the same problem. Do you know of any free tools that do what I need? I am unable to find anything suitable.

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  • How do I draw a filled circle onto a graphics object in a hexadecimal colour?

    - by George Powell
    I need to draw a circle onto a bitmap in a specific colour given in Hex. The "Brushes" class only gives specific colours with names. Bitmap bitmap = new Bitmap(20, 20); Graphics g = Graphics.FromImage(bitmap); g.FillEllipse(Brushes.AliceBlue, 0, 0, 19, 19); //The input parameter is not a Hex //g.FillEllipse(new Brush("#ff00ffff"), 0, 0, 19, 19); <<This is the kind of think I need. Is there a way of doing this? The exact problem: I am generating KML (for Google earth) and I am generating lots of lines with different Hex colours. The colours are generated mathematically and I need to keep it that way so I can make as many colours as I want. I need to generate a PNG icon for each of the lines that is the same colour exactly.

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  • jQuery validate - how do I ignore letter case?

    - by Jamie
    Probably a goofy question, but I can't seem to find anything in google land. I simply need one of my methods to ignore the case of the entered field. I am doing a city name match, but need both "Atlanta" and "atlanta" to be valid. How should I edit this to get the validation love that I need? jQuery.validator.addMethod("atlanta", function(value) { return value == "Atlanta"; //Need 'atlanta' to work too }, '**Recipient must reside in Chicago City Limits**'); Pre thanks to any and all :)

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  • ff extension: how to read a cookie name and value on the current page

    - by encryptor
    My extension works on a application, which requires user login. Once the user has logged in, I need to read the cookies and use them in my xmlhttprequests. So initially i need to check if the cookie is set, if not, I direct the user to the login page. Once logged in, I need to read the cookies and send it as part of mt further requests. Can someone plese help me on how to read cookies from a xmlhttprequest or otherwise (if we dont even know the name of the cookie) there is to function as getRequestHeader.. but what i need is something like that

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  • Replacing multiple patterns in a block of data

    - by VikrantY
    Hi All, I need to find the most efficient way of matching multiple regular expressions on a single block of text. To give an example of what I need, consider a block of text: "Hello World what a beautiful day" I want to replace Hello with "Bye" and "World" with Universe. I can always do this in a loop ofcourse, using something like String.replace functions availiable in various languages. However, I could have a huge block of text with multiple string patterns, that I need to match and replace. I was wondering if I can use Regular Expressions to do this efficiently or do I have to use a Parser like LALR. I need to do this in JavaScript, so if anyone knows tools that can get it done, it would be appreciated.

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  • Pascal's repeat... until vs. C's do... while

    - by Bob
    In C there is a do while loop and pascal's (almost) equivalent is the repeat until loop, but there is a small difference between the two, while both structures will iterate at least once and check whether they need to do the loop again only in the end, in pascal you write the condition that need to met to terminate the loop (REPEAT UNTIL something) in C you write the condition that need to be met to continue the loop (DO WHILE something). Is there a reason why there is this difference or is it just an arbitrary decision?

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  • Detecting position with drag-and-drop and jQuery?

    - by Matthew Westrik
    Hi, I need to know how to detect the position of a dragged item as opposed to other divs. I need to detect whether an item is dropped outside of two different divs. (I am building a mac dock type start page and I need to know how to do this so I can delete icons by dragging them off the bar.) Any help would be greatly appreciated.

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  • Android phone contact 2.1

    - by Sudeep SR
    Hi in my application i need to show all the phone contact including contact image, currently i read all the data in to array and show ,but in some lower end phones it create problem ,like out of memory is there any alternative way to display the all the phone contact NB: the default phone contact intent is not my requirment , i need to get all the phone numbers, and also if first name is empty i need to show the organization name

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  • count subtitled grouping in excel please...

    - by total newbie
    Excel sheet is subtitled but need now to do a count of the items in each grouping so need to find subtilted rows by using a macro and count the number of items in each grouped section (column a) placing the count value in the relevant subtitled row in Column A. no idea where to start can anyone help. Running the subtilteld function again adds another row but i need all of this on the same row..

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  • Simpler reachability ApI?

    - by Moshe
    I've downloaded the Reachability API and I'd like to know if there is a simpler version anywhere, or if someone can point out the bare-bones essential part of it, so that I don't need to add tons of files to my project. I don't need the whole API, I just need to check for any sort of connectivity, a particular host will be assumed available after that.

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  • .htaccess mod force extra characters

    - by user1090809
    I need to be able to write/post links on the web that look like 'mysite.com/?d=foo', and take the user to filepath '/foo.php'. Here is my htaccess: RewriteEngine on RewriteBase / RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME}\.php -f RewriteRule ^([^/]+)/$ $1.php [L] RewriteRule ^([^/]+(/[^/]+)*)/$ /$1.php [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_URI} !(\.[a-zA-Z0-9]{1,5}|/)$ RewriteRule ^([^.]+[^/.])$ /$1/ [R=301,L,NC] Baically I need to "force" '/?d=' before the filename, kinda like I've already modded my htaccess to force a trailing slash. How do I need to reconstruct my htaccess to make that possible?

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  • scanf segfaults and various other anomalies inside while loop

    - by Shadow
    while(1){ //Command prompt char *command; printf("%s>",current_working_directory); scanf("%s",command);<--seg faults after input has been received. printf("\ncommand:%s\n",command); } I am getting a few different errors and they don't really seem reproducible(except for the segfault at this point .<). This code worked fine about 10 minutes ago, then it infinite looped the printf command and now it seg faults on the line mentioned above. The only thing I changed was scanf("%s",command); to what it currently is. If I change the command variable to be an array it works, obviously this is because the storage is set aside for it. 1) I got prosecuted about telling someone that they needed to malloc a pointer* (But that usually seems to solve the problem such as making it an array) 2) the command I am entering is "magic" 5 characters so there shouldn't be any crazy stack overflow. 3) I am running on mac OSX 10.6 with newest version of xCode(non-OS4) and standard gcc 4) this is how I compile the program: gcc --std=c99 -W sfs.c Just trying to figure out what is going on. Being this is for a school project I am never going to have to see again, I will just code some noob work around that would make my boss cry :) But for afterwards I would love to figure out why this is happening and not just make some fix for it, and if there is some fix for it why that fix works.

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  • Echo items with value of three

    - by user342391
    I need to echo all items in my row that have the value of three. If a field has the value of three I then need to echo the 'name' and 'description' on that row. This is what I have so far $result = mysql_query($query1) or die(mysql_error()); while ($row = mysql_fetch_array($result)) { echo $row['status']; } I need to write 'if $row[`status´ == 3 echo 'description' 'name' else echo 'no current staus' I hope I made some sense because I am seriously confused

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  • Efficient persistent storage for simple id to table of values map for java

    - by wds
    I need to store some data that follows the simple pattern of mapping an "id" to a full table (with multiple rows) of several columns (i.e. some integer values [u, v, w]). The size of one of these tables would be a couple of KB. Basically what I need is to store a persistent cache of some intermediary results. This could quite easily be implemented as simple sql, but there's a couple of problems, namely I need to compress the size of this structure on disk as much as possible. (because of amount of values I'm storing) Also, it's not transactional, I just need to write once and simply read the contents of the entire table, so a relational DB isn't actually a very good fit. I was wondering if anyone had any good suggestions? For some reason I can't seem to come up with something decent atm. Especially something with an API in java would be nice.

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  • Facebook SDK , How To Put Name of user in wall post?

    - by Viola Courtney
    I got this code and working fine $access_token = $facebook->getAccessToken(); $vars = array( 'caption' => 'Caption message', 'message' => 'I need help', 'name' => 'I need Help', 'link' => 'http://www.google.com/', 'description' => 'description', 'picture' => '' ); But I want to replace the message or the name in to like : " (name of user) Need Help...

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  • Suggestion for creating custom sound recognition software to toggle audio

    - by Parrot owner
    I need to develop a program that toggles a particular audio track on or off when it recognizes a parrot scream or screech. The software would need to recognize a particular range of sounds and allow some variations in the range (as a parrot likely won't replicate its sreeches EXACTLY each time). Example: Bird screeches, no audio. Bird stops screeching for five seconds, audio track praising the bird plays. Regular chattering needs to be ignored completely, as it is not to be discouraged. I've heard of java libraries that have speech recognition with dictionaries built in, but the software would need to be taught the particular sounds that my particular parrot makes - not words or any random bird sound. In addition as I mentioned above, it would need to allow for slight variation in the sound, as the screech will likely never be 100% identical to the recorded version. What would be the best way to go about this/what language should I look into?

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  • url to http request object

    - by takeshin
    I need to convert string like this: $url = 'module/controller/action/param1/param1value/paramX/paramXvalue'; to url regarding current router (including translation and so on). Usually I generate the target urls using url view helper, but for this I need to specify all params, so I would need to manually explode the string. I tried to use request object, like this: $request = new Zend_Controller_Request_Http(); // some code here passing the $url Zend_Debug::dump($request->getControllerName()); // null instead of 'controllers' Zend_Debug::dump($request->getParams()); // null instead of array but this seems to be suspected. Do I need to dispatch this request? How to handle this case well?

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