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• change data frame columns to rows

  - by Sol Lago

  Sorry if this is obvious: I found a lot of questions similar to mine but I can't figure it out for my own data. I have a data frame that looks like this: A <- c(1,6) B <- c(2,7) C <- c(3,8) D <- c(4,9) E <- c(5,0) df <- data.frame(A,B,C,D,E) df A B C D E 1 1 2 3 4 5 2 6 7 8 9 0 And I need this: df X1 A 1 A 6 B 2 B 7 C 3 C 8 D 4 D 9 E 5 E 0 Thanks!

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• Django site runs into "504 timeout error"

  - by jack

  I have a Django based site on Nginx+FastCGI which keeps running into "504 timeout error" after about 30 minutes since FastCGI process restarted. I did a "ps -aux" check and a lot of FastCGI processes are with D status. How can I figure out which part of the site make FastCGI processes not responsing?

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• Correct term for PSD to HTML to CMS

  - by John Magnolia

  Hi, I have heard a lot of different terms to describe the process of turning a website design into a editable CMS. Currently I take the design and "slice" this up into HTML and CSS then I "plug" this into a CMS. I would class this as frontend development depending on the level of customisation required for the CMS. The reason I ask is I am currently writing up my CV and have become stuck on the correct term for this. Kind Regards

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• C# Lambda expression syntax: are brackets necessary?

  - by DevNovice

  I'm new in C# and earlier I saw the lambda expression is like (params) => { expression;} but in LINQ, I saw examples like IEnumerable<string> customerFirstNames = customers.Select(cust => cust.FirstName); No brackets. Are they the same or is there any difference? Thanks a lot.

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• lambda operator c# learnig

  - by Night Walker

  Hello all Can you recommend me on places where i can read and see examples on usage of Lambda operator in c# . I will really like to see a lot examples on it... Thanks.

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• does channel 9 have subtitle [closed]

  - by jciwolf

  hello everyone you know msdn channel 9 has a lot of excellent video about wcf ,silverlight and so on ,but what let me down is that I am not very good at english,and the show is speak quickly sometime so I can't understand what they say where I can find the subtitle

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• Is a primary key automatically an index?

  - by Lieven Cardoen

  If I run Profiler, then it suggests a lot of indexes like this one CREATE CLUSTERED INDEX [_dta_index_Users_c_9_292912115__K1] ON [dbo].[Users] ( [UserId] ASC )WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF) ON [PRIMARY] UserId is the primary key of the table Users. Is this index better than the one already in the table: ALTER TABLE [dbo].[Users] ADD CONSTRAINT [PK_Users] PRIMARY KEY NONCLUSTERED ( [UserId] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

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• Update Database from Entity Data Model without loosing content

  - by user293818

  Hi there, my Topic should tell you already what i am asking for. Is there any way to update my database from an entity data model without lossing the inserted content? I can't be bothered copying all this stuff everytime i make a change. Thanks a lot. Chris

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• Both OpenID and normal Login on the same View?

  - by PlayKid

  Hi there, Is there any site that show both OpenID and normal login on the same view? Most of the sites either have OpenID implementation or Normal Login implementation on different views. I tried to do that, but it seems my code is very dirty, passing a blank username and password if using OpenID, otherwise OpenID will be blank but passed the username and password. But then I lose the capability of verifying whether the user has entered the correct values, is there any best practice for me to do that? Thanks a lot

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• C# - Basic question: What is '?' ?

  - by Amokrane

  Hi, I'm wondering what ? means in C# ? I'm seeing things like: DateTime? or int?. I suppose this is C# specific to C# 4.0? I can't look for it in Google because I don't know the name of this thing. The problem is I'm using DateTime and I have a lot of cast errors (from DateTime to DateTime?). Thank you

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• Is there a memory efficient and fast way to load big json files in python?

  - by user210481

  I have some json files with 500MB. If I use the "trivial" json.load to load its content all at once, it will consume a lot of memory. Is there a way to read partially the file? If it was a text, line delimited file, I would be able to iterate over the lines. I am looking for analogy to it. Any suggestions? Thanks

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• ABBYY Mobile OCR Engine for Iphone

  - by Heavy Bytes

  I am looking to use/buy a OCR solution for my next iPhone app. Searching through the answers on this site didn't really help me a lot. Did anybody ever use ABBYY Mobile OCR Engine for iPhone? What interests me is how good is it (recognition) and how much does it cost? Thank you.

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• where should I do the calculating stuff,PHP or Mysql?

  - by SpawnCxy

  I've been doing a lot of calculating stuff nowadays.Usually I prefer to do this job in PHP rather than Mysql though I know PHP is not good at this cuz I thought mysql may be worse.But I found some performance problem :some pages were loaded so slowly that 30 seconds' timelimit is not enough for them!So I wonder which is the better practice to do the calculations,and any princles for that?Suggestions would be appreciated.

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• Dynamically resizing CFWINDOW to fit content

  - by Ryan French

  Hi all, Am currently working on a site that uses a lot of cfwindow objects and I was wondering if anyone knows of a way to dynamically resize the window so that all the content fits in without the need for scroll bars. I have tried using the overflow=visible configuration but it doesnt seem to make a difference. Thanks in advance for any advice.

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• Gzip web service extension with IIS

  - by agiko

  When i complete gzip with IIS, and i restart the server the problem came: that the "web service extension" the point to "c:\windows\system32\inetsrv\gzip.dll" has been auto deleted! so awesome, but why? And i google it, but find nothing about it, have anyone even meet this questiong? Please help me, thanks a lot!

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• In node.js slow readable stream attached to a faster pushing message queue eats up memory

  - by Vishal

  In my node.js program I have a response stream attached to a message queue (zeromq) delivering data at a very high rate. Due to slow network connection the response stream and its underlying implementation is unable to consume data at that pace thus occupying a lot of memory. Do you have any suggestion to solve this problem. For reference please see the code snippet below: zmq.on("message", function(data) { res.write(data); // End response on some event });

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• domain name vs ip address, same server, but different speed

  - by bn

  I have two similar sites: - two of them have almost exactly the same codes, and running on the same server - both sites are the same, they just use different language. - database of the slower site is populated (maybe only the user table) the other tables for site content is the same - the faster uses root to access database one of the sites is not released yet, so it uses IP Address to access the site instead of domain name the site that is using IP address is faster (lot faster) the site that is using domain name is slower do you know why is this happening what could be the reason?

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• SimpleModal Strange ASP.NET Button problem

  - by bhsstudio

  Hi I have the following codes $('#<%= btnOpen.ClientID %>').click(function() { $('#content').modal(); }); <asp:Button ID="btnOpen" runat="server" Text="Open" /> When I click on the button, the modal window will appear for about 0.5 second and disappear right away.Can anyone help me please? Thanks a lot!

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• Typedef in C# across several source files

  - by Danvil

  I am writing a C wrapper an would like to use a typedef aquivalent to define some types which should be valid in quite a lot of source files. Those "types" are just different aliases to [u]int16/32/64_t, but are useful to distinguish function parameters. One could use using MyId=System.Int32;, but this needs to be redeclared in every file as far as I see... Is there a better way?

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• How can I change column length using HQL query?

  - by gmugmu

  I tried session.createSQLQuery("ALTER TABLE People MODIFY address VARCHAR(1000);").executeUpdate(); but this throws org.hibernate.exception.SQLGrammarException: could not execute native bulk manipulation query After a lot of googling, the recommendation is to use HQL instead of SQL query to do bulk updates. Not sure how to use HQL to accomplish this. There seems to be no decent HQL documentation for updating column length in a table. Thanks so much for the help.

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• vba excel, get start range and end range of a vertically merged cell

  - by vbauser

  Hi.. actually my question is just like the title says.. i need to find out the first cell and the last cell of a vertically merged cell.. lets say i merge the Cells B2 down to B50 how can i get in VBA the start cell(=B2) and the end cell(=B50) ? thanks a lot

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• what are best practices on asking user to add the facebook app to their page?

  - by simple

  Hello I am looking for a best way to ask/forward user so he/she adds my app to their page one way is to make them follow the link http://www.facebook.com/add.php?api_key=[your application api key]&pages (http://www.facebook.com/add.php?api_key=1fc2946c634702dfc75cce79c97c8cec&pages -real life example) wrapping up the question: as facebook has made a lot of changes maybe the above method is the outdated one(though it is supported), and is there are any more ways to get same result?

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• Visual Studio 2010 - Is it slow for anyone else?

  - by AngryHacker

  I've read a lot of stuff about VS2010 being much more performant than VS2008. When I've finally installed it, I found that it, in fact, is much slower (save for the Add References dialog). For instance, Silverlight projects take twice as long to load, the startup of the IDE itself is much slower, etc... Am I missing something here or is it like this for everyone?

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• SQL most executed query?

  - by Esabe

  Hi everyone, I have a database in SQL Server 2008, and there are a lot of machines making queries against it. I know there is a SQL Server profiler, but I don't know very well how to use it. Is there any way to know what are the most common queries executed in the database? Through the profiler or not, it doesn't matter. Thank you very much in advance!

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• calling a java webservice from html page and javascript

  - by Jukki

  Hey guys, I'm trying to call a java implemented web service (using the NetBeans IDE) from javascript. I have read a lot about jQuery and AJAX but i cant seem to get a hand on it. suppose my web service WSDL is found at: http://localhost:8080/MICE_Server/MapEditorService?WSDL web method name : sayHello(String name) which returns a string. how would i be able to to this in javascript? thanks in advance for ur help!!

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