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  • Reading Matrices in MATLAB and assigning coordinates to the entries

    - by Michael Schofield
    Hi, I'm a bit new to MATLAB. Basically, I have a 25x25 Matrix, complete with various random entries ranging from 0 to 3. I need to write a program that reads this matrix, and assigns x-y coordinates to the entries, so that when I ask for an input of a particular x-y coordinate which has, say an entry of 3, then it will result in an error. I'm a bit overwhelmed - but I understand the general concept of what I'm supposed to be finding. I'm wondering if I should use a plot instead to help me.

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  • Process AJAX response with long runing tasks

    - by mpz
    I have long time task in controller action. I use delayed job for it. (Also in heroku it is good practice for perfomance - dyno must work for small time in each request) But my client need result of it work and users can wait on that task. It is more clear: no any addition models or records in it, simple view and js... I think about such way: On client run AJAX with very long timeout (5 min for example) Client make request to server as usual On controller in action1 def start_work (with delay work setup) i need NO any response to client After work performs (delay job finished) i need run new action2 with response to client Client recieve response after about 1-5 min It is possible?

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  • Can you help me refactor this piece of clojure code to produce a seq?

    - by ique
    I want to produce a seq that I can later do a (map) over. It should look like this: ((0 0) (0 1) (0 2) (0 3) ... (7 7)) The piece of code I have to do it right now seems very, very ugly to produce such a simple result. I need some help getting this straight. (loop [y 0 x 0 args (list)] (if (and (= y 7) (= x 7)) (reverse (conj args (list y x))) (if (= x 7) (recur (+ y 1) 0 (conj args (list y x))) (recur y (+ x 1) (conj args (list y x))))))

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  • difference between 2 pieces Python code

    - by draw
    Hello, I'm doing an exercise as following: # B. front_x # Given a list of strings, return a list with the strings # in sorted order, except group all the strings that begin with 'x' first. # e.g. ['mix', 'xyz', 'apple', 'xanadu', 'aardvark'] yields # ['xanadu', 'xyz', 'aardvark', 'apple', 'mix'] # Hint: this can be done by making 2 lists and sorting each of them # before combining them. sample solution: def front_x(words): listX = [] listO = [] for w in words: if w.startswith('x'): listX.append(w) else: listO.append(w) listX.sort() listO.sort() return listX + listO my solution: def front_x(words): listX = [] for w in words: if w.startswith('x'): listX.append(w) words.remove(w) listX.sort() words.sort() return listX + words as I tested my solution, the result is a little weird. Here is the source code with my solution: http://dl.dropbox.com/u/559353/list1.py. You might want to try it out.

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  • find all occurrences of comparison with == in visual studio

    - by Emiswelt
    Hi there I made the mistake of using == for comparing IP addresses instead of using the equals() method of the IPAddress class in C#, which will result in the comparison of references instead of values. Since the solution I am currently working on is very large for a one-man project ( 100.000 lines of source code), I am very sure that I still have some of these wrong statements in my code. Is there any possibility to tell Visual Studio to find all occurrences of == operations on a specific class for me, so that I can find and clean up the bugged comparisons? with best regards, emi

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  • What is linux equivalent of running a .bat file on windows from PHP using system()

    - by undefined
    I have a PHP script that runs a .bat file on my windows machine using $result = system("cmd /C nameOfBatchFile.bat"); This sets some environmental variables and is used to call Amazon EC2 API from the command line. How do I do the same from a Linux server? I have renamed my .bat file to a shell (.sh) and changed the script to use 'export' when setting env vars. I have tested by running the code from a putty terminal and it does what it should. So I know the commands in the script are good. How do I run this from PHP? I have tried running the same command as above with the new filename and I don't get any errors, or file not found etc but it doesn't appear to work. Where do I start trying to solve this?

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  • How much effort does it take to spoof an Ip Address in a call to a webservice?

    - by Rory Becker
    I don't want to know how... Just how complicated.... I'm thinking of securing a webservice or 2 based on the incoming client ipaddress of the caller. Is this in any way secure? Surely if the IPaddress was being spoofed then the result would have to be sent back to the address that was being spoofed and therefore not reach the spoofer? Update: Ok so from what I can tell.... I should create a Gettoken() method which checks the IPaddress and passes out a cryptographically significant token with a timeout to any valid IP address. This is then required by any other method before any kind of side effect is allowed. Since an Attacker can't (likely) get the token without having a valid IP, he will be unable to validly call any of my "dangerous" webmethods ?

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  • python regular expressions, how to extract longest of overlapping groups

    - by xulochavez
    Hi How can I extract the longest of groups which start the same way For example, from a given string, I want to extract the longest match to either CS or CSI. I tried this "(CS|CSI).*" and it it will return CS rather than CSI even if CSI is available. If I do "(CSI|CS).*" then I do get CSI if it's a match, so I gues the solution is to always place the shorter of the overlaping groups after the longer one. Is there a clearer way to express this with re's? somehow it feels confusing that the result depends on the order you link the groups.

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  • How to Deal with SET ANSI_NULLS ON or OFF ?

    - by Shantanu Gupta
    I want to call this procedure that sends one value that can be NULL or any int value. SELECT DomainName, DomainCode FROM Tags.tblDomain WHERE SubDomainId =@SubDomainId I simply want to use this single query rather than what i m doing right now in below given code. I searched for this how could i do this then i got this Link. According to this I have to set ANSI_NULLS OFF I am not able to set this inside this procedure before executing my sql query and then reset it again after doing this. ALTER PROCEDURE [Tags].[spOnlineTest_SubDomainSelect] @SubDomainId INT AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; -- Insert statements for procedure here IF @SubDomainId IS NULL SELECT DomainName, DomainCode FROM Tags.tblDomain WHERE SubDomainId IS NULL ELSE SELECT DomainName, DomainCode FROM Tags.tblDomain WHERE SubDomainId =@SubDomainId END What will be the better practice to do deal with ANSI_NULLS or Using If Else

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  • Is the "message" of an exception culturally independent?

    - by Ray Hayes
    In an application I'm developing, I have the need to handle a socket-timeout differently from a general socket exception. The problem is that many different issues result in a SocketException and I need to know what the cause was. There is no inner exception reported, so the only information I have to work with is the message: "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond" This question has a general and specific part: is it acceptable to write conditional logic based upon the textual representation of an exception? Is there a way to avoid needing exception handling? Example code below... try { IPEndPoint endPoint = null; client.Client.ReceiveTimeout = 1000; bytes = client.Receive(ref endPoint); } catch( SocketException se ) { if ( se.Message.Contains("did not properly respond after a period of time") ) { // Handle timeout differently.. } }

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  • JavaScript Prototype and Encapsulation

    - by Adam Davies
    Sorry I'm probably being a realy noob here...but: I have the following javascript object: jeeni.TextField = (function(){ var tagId; privateMethod = function(){ console.log("IN: privateMethod"); } publicMethod = function(){ console.log("IN: publicMethod: " + this.tagId); } jeeni.TextField = function(id){ console.log("Constructor"); this.tagId = id; } jeeni.TextField.prototype = { constructor: jeeni.TextField, foo: publicMethod }; return jeeni.TextField; }()); Now when I run the following code I get the corresponding result: var textField1 = new jeeni.TextField(21); // Outputs: Constructor textField1.foo(); // Outputs: IN: publicMethod: 21 console.log(textField1.tagId); // Outputs: 21 console.log(textField1.privateMethod); // Outputs: undefined So my question is why is privateMethod hidden and tagId is not. I want them both to be private scope. Please help a noob. Thanks

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  • Sum of distinc rows after a 1-many table join

    - by Lock
    I have 2 tables that I am joining. Table 1 has 1-many relationship with table 2. That is, table 2 can return multiple rows for a single row of table 1. Because of this, the records of table 1 is duplicated for as many rows as are on table 2.. which is expected. Now, I have a sum on one of the columns from table 1, but because of the multiple rows that get returned on the join, the sum is obviously multiplying. Is there a way to get this number back to its original number? I tried dividing by the count of rows from table 2 but this didnt quite give me the expected result. Are there any analytical functions that could do this? I almost want something like "if this row has not yet been counted in the sum, add it to the sum"

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  • passing session id via url

    I'm trying to get my script to use url session id instead of cookies. The following page is not picking up the variable in the url as the session id. I must be missing something. First page http://www.website.com/start.php ini_set("session.use_cookies",0); ini_set("session.use_trans_sid",1); session_start(); $session_id = session_id(); header("location: target.php?session_id=". $session_id ); Following page - http://www.website.com/target.php?session_id=rj3ids98dhpa0mcf3jc89mq1t0 ini_set("session.use_cookies",0); ini_set("session.use_trans_sid",1); print_r($_SESSION); print(session_id()) Result is a different session id and the session is blank. Array ( [debug] = no ) pt1t38347bs6jc9ruv2ecpv7o2

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  • Can using Chronic impair you sense of time?

    - by Trip
    Haha.. I'm using Chronic to parse the time users add in the Calendar. Where the code works and implements the right time, the end result is that, IF a user adds a time, then it has no date, and because it has no date, it will not show in results. Any ideas? def set_dates unless self.natural_date.blank? || Chronic.parse(self.natural_date).blank? # check if we are dealing with a date or a date + time if time_provided?(self.natural_date) self.date = nil self.time = Chronic.parse(self.natural_date) else self.date = Chronic.parse(self.natural_date).to_date self.time = nil end end unless self.natural_end_date.blank? || Chronic.parse(self.natural_end_date).blank? # check if we are dealing with a date or a date + time if time_provided?(self.natural_end_date) self.end_date = nil self.end_time = Chronic.parse(self.natural_end_date) else self.end_date = Chronic.parse(self.natural_end_date).to_date self.end_time = nil end end end

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  • Cakephp, Retreive Data for HABTM Models using conditional find

    - by ion
    There are 2 Models: Project & Category that are bind with HABTM relationship. I would like to perform a search from projects controller that can do the following: FIND all DISTINCT Project.scedule WHERE Category.slug != 'uncategorised' Apologies for the syntax, I'm no sequel expert. What I have managed to do is to retrieve all projects that do not belong to Category uncategorised into an array however I'm not sure as to how to search again the array result for DISTINCT Project.schedule values (needed to fill out a form drop down) I hope I made myself clear.

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  • C# Closing a form during a constructor

    - by pm_2
    Is it possible to close a form while the constructor is executing (or simply to stop it showing at this stage)? I have the following code: public partial class MyForm : Form { public MyForm() { if (MyFunc()) { this.Close(); } } } Which errors in Main(), here: static void Main() { ... // Following line errors Application.Run(new MyForm()); } I’ve tried checking the result of MyForm like this: static void Main() { ... MyForm frm = new MyForm(); if (frm != null) { // Following line errors Application.Run(frm); } } But that doesn’t seem to help. Can anyone tell me a way around this, please? Maybe a way to check the form to see if it still exists?

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  • question in sql server 2005 Proc

    - by bassam
    i have this Proc CREATE Proc [dbo].Salse_Ditail -- Add the parameters for the stored procedure here @Report_Form varchar(1) , @DateFrom datetime , @DateTo datetime , @COMPANYID varchar(3), @All varchar(1) , @All1 varchar(1) , @All2 varchar(1) , @All3 varchar(1) , @All4 varchar(1) , @All5 varchar(1) , @Sector varchar(10), @Report_Parameter nvarchar(max) as BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. DECLARE @STRWhere nvarchar(max) IF @All5=0 AND @All4=0 AND @All3=0 AND @All2=0 AND @All1=0 and @All=1 set @STRWhere= N'and Sector_id = @Sector' if @Report_Form =1 or @Report_Form =3 or @Report_Form =4 SELECT RETURNREASONCODEID, SITE,SITE_NAME,Factory_id,Factory_Name,Sector_id,sector_name,Customer_name, Customer_id,ITEMID,ITEMNAME,SALESMANID,SALESMAN_NAME,Net_Qty,Net_Salse,Gross_Sales,Gross_Qty, NETWEIGHT_Gross,NETWEIGHT_salse_Gross,NETWEIGHT_NET,NETWEIGHT_salse_NET,Return_Sales,Free_Good, CollectionAmount FROM hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form if @Report_Form =2 SELECT RETURNREASONCODEID , RETURNREASONDESC, SITE , SITE_NAME , Factory_id , Factory_Name , Sector_id , sector_name , Customer_name , Customer_id , ITEMID , ITEMNAME , SALESMANID , SALESMAN_NAME , Return_Sales FROM dbo.hal_bas_new_rep WHERE DATAAREAID =@COMPANYID AND INVOICEDATE >= @DateFrom AND INVOICEDATE <= @DateTo and Report_Activti = @Report_Form and RETURNREASONCODEID in ( SELECT Val FROM dbo.fn_String_To_Table(@Report_Parameter,',',1) ) /* @STRWhere question how i can but the virble here */ end GO i want to but virble put a variable under where Expression and from this function buc I have many function i want to add if any one have answer pls send me

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  • MVC partial page update

    - by GB
    Hello, I have an MVC project where I have a form with fields a user can enter and save. On that same page I have a table which shows a brief listing of information that the user just saved. The problem I am having is trying to update only the table after a save and not an entire page refresh. Is this possible in jquery or MVC? If so does anyone have an example. Here is what the action in the controller looks like: public ActionResult RefreshList() { string _employeeID = Request.QueryString["empIDSearch"]; this.ViewData["coursehistorylist"] = _service.ListCoursesByEmpID(_employeeID); return View("CourseHistoryList"); } The function in the view: (and this is where I'm confused on how to update only the table) $.ajax({ url: "/Home/RefreshList", type: "POST", success: function(result) { alert("got here"); }, error: function(xhr, ajaxOptions, thrownError) { alert(xhr.status + " " + thrownError + " " + ajaxOptions); } }); Thanks.

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  • c++ - QListWidget

    - by user1889459
    I created a working QListWidget with multiple items, but I can't figure out how to make it user-friendly. It looks like this: 1000 1001 1002 ... But I want it to look like this, where firt 4 numbers have a meaning, while all the rest info is just for user. 1000 Name LastName and some other helpful info 1001 tom jeff smallville 1002 ming vase, 1992 ... For example, this line fotoId = ui->devices->currentItem()->text().toInt(); should give me same result in both cases.

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  • How to remove all words written in capital letters ONLY (by using sed and/or awk)

    - by Virtual_Lotos
    I am trying to delete all words written in capital letters only by using sed: sed -r "s/\b[A-Z]\w*\s*//g" < file1 > file2 But this solution capture all the words starting with capital letters and delete them (this in not the goal). Here's an example: file1 content: AAAAAAAAAAAA BBbbbbb AbAbAbAb aaaaaBBBBB AAAAAA BBBBBB A1-B1 a1-b1 A1-b1 AA AAAAA BBBBB AAAAA Abbbb AAA AAAAA AAAABB Abbbb Baaaa Aaaaa AB AAAAAA1 BBBBBBb AAAAAA 1 BBBBBB b Result should be like this (file2 content): BBbbbbb AbAbAbAb aaaaaBBBBB A1-B1 a1-b1 A1-b1 AA Abbbb AAA Abbbb Baaaa Aaaaa AB AAAAAA1 BBBBBBb AAAAAA 1 BBBBBB b Each line of at least one digit or one lowercase letter should remain intact (should not be deleted).

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  • jQuery IE7 on-the-fly images

    - by Scott Evernden
    The simplified version of the problem I am seeing in IE7 can be demonstated using FireBug Lite. On a page loaded with jQuery, I open FireBug Lite (via bookmarket) and I enter the following: image = $('<img src="http://example.com/boofar.jpg" border="12" width="95" height="95" title="Booya">')[0]; and the result echoed is: <img title="Booya" contentEditable="inherit" start="fileopen" loop="1" src="http://example.com/boofar.jpg" border="12"> Where are the width and height attributes? Furthermore, image.width; and image.attributes.width.value; return 0 and "0". Seen this with both jQuery 1.2.6 as well as 1.4.2. It does the right thing in IE8 and FF. Any ideas where those attributes went? Very annoying....

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  • Prolog: find all numbers of unique digits that can be formed from a list of digits

    - by animo
    The best thing I could come up with so far is this function: numberFromList([X], X) :- digit(X), !. numberFromList(List, N) :- member(X, List), delete(List, X, LX), numberFromList(LX, NX), N is NX * 10 + X. where digit/1 is a function verifying if an atom is a decimal digit. The numberFromList(List, N) finds all the numbers that can be formed with all digits from List. E.g. [2, 3] -> 23, 32. but I want to get this result: [2, 3] -> 2, 3, 23, 32 I spent a lot of hours thinking about this and I suspect you might use something like append(L, _, List) at some point to get lists of lesser length. I would appreciate any contribution.

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  • PHP attempting to make JavaScript friendly timestamp, failing, returns 1.34899651119E+12

    - by chris
    Well, not sure whats going on. I have been trying to follow by examples I have found here on stack, on google, even an answer someone gave me a week+ ago, which unfortunately I wasn't able to test until today. Anyway I am attempting to generate a javascript friendly timestamp via php so I can get my times synced up. The best logic I could find overall was something dealing with microtime. However that doesn't seem to work as expected, not even in the slightest. Right now I am using microtime(true)*1000; and am getting 1.34899651119E+12 for the result. Did I some how manage to mess up that one tiny line of code, Im not sure.

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  • Using Boost statechart, how can I transition to a state unconditionally?

    - by nickb
    I have a state A that I would like to transition to its next state B unconditionally, once the constructor of A has completed. Is this possible? I tried posting an event from the constructor, which does not work, even though it compiles. Thanks. Edit: Here is what I've tried so far: struct A : sc::simple_state< A, Active > { public: typedef sc::custom_reaction< EventDoneA > reactions; A() { std::cout << "Inside of A()" << std::endl; post_event( EventDoneA() ); } sc::result react( const EventDoneA & ) { return transit< B >(); } }; This yields the following runtime assertion failure: Assertion failed: get_pointer( pContext_ ) != 0, file /includ e/boost/statechart/simple_state.hpp, line 459

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  • str_replace problem

    - by user330840
    I am trying to change title data into URL. I need to get rid off all text starting from "deadline" from the following dynamic data which I get from $title: New York deadline May 14th, 2010 (urgent) New Hampshire deadline May 19th, 2010 New Jersey deadline I expect the result should be like this new-york new-hampshire new-jersey Here is the code I have tried $newurl = strip_tags(str_replace("deadline","","$title")); $code_entities_match = array( '&quot;' ,'!' ,'@' ,'#' ,'$' ,'%' ,'^' ,'&' ,'*' ,'(' ,')' ,'+' ,'{' ,'}' ,'|' ,':' ,'"' ,'<' ,'>' ,'?' ,'[' ,']' ,'' ,';' ,"'" ,',' ,'.' ,'_' ,'/' ,'*' ,'+' ,'~' ,'`' ,'=' ,' ' ,'---' ,'--','--'); $code_entities_replace = array('' ,'-' ,'-' ,'' ,'' ,'' ,'-' ,'-' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'-' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'' ,'-' ,'' ,'-' ,'-' ,'' ,'' ,'' ,'' ,'' ,'-' ,'-' ,'-','-'); $newtitle = str_replace($code_entities_match, $code_entities_replace, $newurl); $urltitle = strtolower($newtitle); Unfortunately, the results are: new-york-deadline-may-14th-2010-urgent new-hampshire-deadline-may-19th-2010 new-jersey- Anyone can help?

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