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• join 3 files by first Column with awk ?

  - by noinflection

  i have three similar files, they are all like this: File A ID1 Value1a ID2 Value2a . . . IDN Value2n and i want an output like this Output ID1 Value1a Value1b Value1c ID2 Value2a Value2b Value2c ..... IDN ValueNa ValueNb ValueNc Looking to the first line, i want value1A to be the value of id1 in fileA, value1B the value of id1 in fileB, and so on which each field and each line. I thougth it like a sql join. I've tried several things but none of them where even close.

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• Why the compiler doesn't complain about this error ?

  - by M.H

  Hi I am writing some java questions to help my friends in the java exam. I wrote a question and I supposed that three errors will occurred in the code but the compiler complained only about two. the code is : class MyClass { static MyClass() { System.out.println("I am The First Statement here!"); this(); } } I expected the following errors : the constructor can't be static this can't be in a static function (since the constructor isn't valid) this here should be the first statement. NetBeans isn't complaining about the second error here. why ?

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• loading Data in VBA from a text file

  - by omegayen

  I am not very familiar with VBA but need to use it for a new software program I am using (not Microsoft related) I have a text file that has columns of data I would like to read into VBA. Specifically the text file has 4 entries per row. Thus I would like to load in the column vectors (N by 1). The text file is separated by a space between each entry. So for example I want to load in column one and save it as array A, then column two and save as array B, then column three and save as array C, and then column four and save as array D. This code snippet found below from http://www.tek-tips.com/faqs.cfm?fid=482 is something I found that can load in text to an array, but I need to adapt it to be able to save the columns as different arrays as specified above... Open "MyFile.txt" For Input As #1 ReDim Txt$(0) Do While Not EOF(1) ReDim Preserve Txt$(UBound(Txt$) + 1) Input #1, Txt$(UBound(Txt$)) Loop Close #1

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• How to code an efficient blacklist filter function in php?

  - by achairapart

  So, I have three arrays like this: [items] => Array ( [0] => Array ( [id] => someid [title] => sometitle [author] => someauthor ... ) ... ) and also a string with comma separated words to blacklist: $blacklist = "some,words,to,blacklist"; Now I need to match these words with (as they can be one of) id, title, author and show results accordingly. I was thinking of a function like this: $pattern = '('.strtr($blacklist, ",", "|").')'; // should return (some|words|etc) foreach ($items as $item) { if ( !preg_match($pattern,$item['id']) || !preg_match($pattern,$item['title']) || !preg_match($pattern,$item['author']) ) { // show item } } and I wonder if this is the most efficient way to filter the arrays or I should use something with strpos() or filter_var with FILTER_VALIDATE_REGEXP ... Note that this function is repeated per 3 arrays. However, each array will not contain more than 50 items.

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• Scoping two models on approved

  - by Shaun Frost Duke Jackson

  I have three models (Book,Snippet,User) and I'd like to create a scope for where(:approved = true) I'm doing this so I can use the merit gem to define ranking based on count of approved. I'm thinking that writing this as a scope might be to complex but I don't know as I've just started leaning scopes. I've currently got this in my Book & Snippet Model: scope :approved, -> { where(approved: true) } I've playing around with this in my user model but I don't think it's correct: scope :approved, joins(:books && :snippets) Could anyone help start me off or give me some suggestions on what to read?

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• Dart Can't get logging statements to compile

  - by Nate Lockwood

  I'm trying to learn how to implement logging using the examples/tutorial in: http://blog.dartwatch.com/2013/05/campaign-to-use-real-logging-instead-of.html#comment-form But having imported the libraries this line in main will not compile because the class 'PrintHandler' is not recognized and Google has not been a help in this case. My server application consists of a main and three classes. I'm new at Dart. Below I've extracted the logging code that I added. In what library is 'PrintHandler'? Is this a class I need to write? library server; import 'package:logging_handlers/logging_handlers_shared.dart'; import 'package:logging/logging.dart'; final _serverLogger = new Logger("server"); // top level logger void main() { Logger.root.onRecord.listen(new PrintHandler()); // default PrintHandler _serverLogger.fine("Server created"); } class A { } class B { } class C { }

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• Non US characters in section headers for a UITableView

  - by epatel

  I have added a section list for a simple Core Data iPhone app. I followed this so question to create it - How to use the first character as a section name but my list also contain items starting with characters outside A-Z, specially Å,Ä and Ö used here in Sweden. The problem now is that when the table view shows the section list the three last characters are drawn wrong. See image below It seems like my best option right now is to let those items be sorted under 'Z' if ([letter isEqual:@"Å"] || [letter isEqual:@"Ä"] || [letter isEqual:@"Ö"]) letter = @"Z"; Someone that have figured this one out? And while I'm at it... 'Å', 'Ä' and 'Ö' should be sorted in that order but are sorted as 'Ä', 'Å' and 'Ö' by Core Data NSSortDescriptor. I have tried to set set the selector to localizedCaseInsensitiveCompare: but that gives a out of order section name 'Ä. Objects must be sorted by section name' error. Seen that too?

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• issue with dll's embedded manifest file.

  - by satishtech

  I have created manifest file for my.dll. my.dll has a dependency on msvcr90.dll. In auto generated manifest file contains, ( i was using MS VC++ 2008 Express Edition) In side by side(winsxs) directory, there are three version on msvcr90.dll. my.dll started to using only the latest version of msvcr90.dll (9.0.30729.4148). Here in below topics i need the help: 1) my.dll is using only the latest version of msvcr90.dll . if i tried to make this dll as old. My application fails to start. How to make contidion that my.dll should refer only to the version which i mentioned in manifest file. 2) how can i tell my.dll should dependent on the msvcr90.dll which i providing in the local directory along with my.dll. I want to restrict my my.dll should not do search in the system directory for the msvcr90.dll.

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• Minimal files to run a fully-functional PostgreSQL in Windows

  - by fxam

  I would like to bundle PostgreSQL into my application. I downloaded the PostgreSQL 9 beta zip without the installer. After extraction, there are 8 directories. I found out that at least the following directories are required to run PostgreSQL properly, at least under my experiments. bin lib share The question is, are the above three directories really sufficient to run a fullly functional PostgreSQL? Do I need the 'include' and 'symbols' directories? Also, can I remove 'share\locale' if I don't use these locales?

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• Stored procs breaking overnight

  - by Chad

  We are running MS SQL 2005 and we have been experiencing a very peculiar problem the past few days. I have two procs, one that creates an hourly report of data. And another that calls it, puts its results in a temp table, and does some aggregations, and returns a summary. They work fine...until the next morning. The next morning, suddenly the calling report, complains about an invalid column name. The fix, is simply a recompile of the calling proc, and all works well again. How can this happen? It's happened three nights in a row since moving these procs into production.

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• c++ normalizing data sizes across systems

  - by Bocochoco

  I have a struct with three variables: two unsigned ints and an unsigned char. From my understanding, a c++ char is always 1 byte regardless of what operating system it is on. The same can't be said for other datatypes. I am looking for a way to normalize POD's so that when saved into a binary file, the resulting file is readable on any operating system that the code is compiled for. I changed my struct to use a 1-byte alignment by adding #pragma as follows: #pragma pack(push, 1) struct test { int a; } #pragma pack(pop) but that doesn't necessarily mean that int a is exactly 4 bytes on every os, I don't think? Is there a way to ensure that a file saved from my code will always be readable?

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• Multiple calls to /dev/stdin using python subprocess (*nix)

  - by Alex Leach

  Hi, I have a python subprocess call which I would like to link up to three pipes (two standard in and one standard out). I know that there is only one /dev/stdin, but there's all those other devices in /dev I don't know about, and don't know of any python os, sys or subprocess modules that will utilise them in a manner which allows me to give the device path to subprocess.Popen. The reason I ask is because I would like to pipe information from a mysql database or tar archive rather than a directory structure I currently have which has 28,000 directories in. The directory names alone uses a LOT of space! The alternative is to tar / gunzip the entire directory structure and manoeuvre through the compressed archive. With either solution, mysql or tar, I would still like to have two pipes into subprocess.Popen and one out, so that I can bypass the HDD. Any need for an example??

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• SEO Language information

  - by Kevin

  I was wondering if defining your language in HTML is better for search enigines. For example, I've got a French site, then i've got three options: 1.) have faith that google can say my site is french 2.) define language in the HTML tag <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="fr"> 3.) define language in a meta tag <meta http-equiv="content-language" content="FR-fr" /> Which option you believe is best? Or which combination of options?

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• How to perform "shell" icon embedding in Visual Studio 2010?

  - by JustABill

  As far as I can tell, there have been (at least?) three types of icon embedding. There's the original style used by shell32.dll and friends, .Net's embedding, and the new type that WPF uses. I'm looking for how to perform the first one, as I want to have a few other icons available as resources for a jumplist, which can only accept that style. However, I can't figure out how to embed in this style, only the other two. How do I do this? All the results I find on google, etc are for adding icons to ResX files or similar. I am using C#, if it matters.

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• iPhone: Custom UITableViewCell with multiple areas that respond to taps?

  - by Nick

  I've been asked to create a custom UITableViewCell with multiple areas that can be tapped. These areas won't have buttons or any graphics - they'll be invisible. 3 different methods will be called depending on which third of the cell the user taps i.e. || decrementFooCount || viewFooDetails || incrementFooCount || The cell has a few labels on it that need to be visible at all times - the fooName and fooCount. I'm thinking perhaps three hidden UIButtons over the cell? I also need to maintain the swipe to delete default behavior.

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• ClickOnce installing prereqs out of order

  - by Rick Make

  I have an Outlook plugin that I am deploying using ClickOne (right click on project file, choose publish, etc...). I recently created a blank XP VM with only Office 2007 installed. My ClickOnce installer recognizes that I need my three prerequisites (Office 2007 PIAs, .Net 3.5 Sp1, and VSTO 2010 tools). They download fine but then the installer tries to install the Office 2007 PIAs first and my install fails because .Net 3.5 Sp1 and VSTO 2010 tools are prerequisites for the Office 2007 PIAs. How can I change the install order of my prerequisites? Also, are there better options for deploying ClickOnce's applications?

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• Multiple levels of 'collection.defaultdict' in Python

  - by Morlock

  Thanks to some great folks on SO, I discovered the possibilities offered by collections.defaultdict, notably in readability and speed. I have put them to use with success. Now I would like to implement three levels of dictionaries, the two top ones being defaultdict and the lowest one being int. I don't find the appropriate way to do this. Here is my attempt: from collections import defaultdict d = defaultdict(defaultdict) a = [("key1", {"a1":22, "a2":33}), ("key2", {"a1":32, "a2":55}), ("key3", {"a1":43, "a2":44})] for i in a: d[i[0]] = i[1] Now this works, but the following, which is the desired behavior, doesn't: d["key4"]["a1"] + 1 I suspect that I should have declared somewhere that the second level defaultdict is of type int, but I didn't find where or how to do so. The reason I am using defaultdict in the first place is to avoid having to initialize the dictionary for each new key. Any more elegant suggestion? Thanks pythoneers!

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• Cannot output json from MySQL - getting null value

  - by sky

  I'm using following code but cannot return data from MySQL. This is the output: <script type="text/javascript"> var somethings= [null,null,null]; </script> It does have three post, but I couldn't get the title(message) output. EDIT: this is the code I'm using: <?php $session = mysql_connect('localhost','name','pass'); mysql_select_db('dbname', $session); $result= mysql_query('SELECT * FROM posts', $session); $somethings= array(); while ($row= mysql_fetch_assoc($result)) { $somethings[]= $row['something']; } ?> <script type="text/javascript"> var somethings= <?php echo json_encode($somethings); ?>; </script>

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• How to calculate a point with an given center, angle and radius?

  - by mystify

  In this SO question, someone asked for calculating an angle from three points. I need to do the opposite thing. I want to draw a clock, and I have tiny tick images. An art dude made 60 of them, each with an individual and accurate shadow. So there are 60 distinct images at 10x10 points in size, already correctly rotated in the center of that square. So every 6 degrees one tick image has to be placed. I would just need to calculate the x/y coordinate based on a center point, an radius and an angle. So I have: an center point an radius an angle Is there an easy way to calculate the x/y coordinate with this? Maybe cocoa-touch already has a useful function or method for this?

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• indicate tuncation in ToolTipStatusLabel automatically

  - by harper

  I have a .NET application with a StatusStrip holding three ToolTipStatusLabels. The Text of the labels are filled from the application as they show the status. For some circumstances they can hold an empty text. When I resize the window, the ToolTipStatusLabels are hidden when they cannot be fit in the StatusStrip. I would like to have the text truncated when the label cannot be fit in the StatusStrip. The default behavior to hide the label makes it difficult to distinguish between empty text or hidden label. To indicate that the text is truncated automatically, this should be indicated with an ellipsis (...). How can this be done?

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• Using ggplot in R

  - by g256

  I have a time series cvs file like this (in var there are the values): Hour,Date,Type,val1,val2,val3,val4,val5,val6..... 0100,0153,aaa, 0100,0153,bbb, 0100,0153,ccc, 0100,0153,ddd, 0200,0153,aaa, 0200,0153,bbb, 0200,0153,ccc, 0200,0153,ddd, . . 0100,0154,aaa, 0100,0154,bbb, 0100,0154,ccc, 0100,0154,ddd, . . I would like to use ggplot to plot the barplot mean of the time series of val1,val2,... for each type. One plot for each type except for ccc and ddd that should be considered as one type, so for this I should first sum up the value, then take the mean, then plot). So three plot at the end. Thanks for advice.

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• How do I combine similar method calls into a delegate pattern?

  - by Daniel T.

  I have three methods: public void Save<T>(T entity) { using (new Transaction()) { Session.Save(entity); } } public void Create<T>(T entity) { using (new Transaction()) { Session.Create(entity); } } public void Delete<T>(T entity) { using (new Transaction()) { Session.Delete(entity); } } As you can see, the only thing that differs is the method call inside the using block. How can I rewrite this so it's something like this instead: public void Save<T>(T entity) { TransactionWrapper(Session.Save(entity)); } public void Create<T>(T entity) { TransactionWrapper(Session.Create(entity)); } public void Save<T>(T entity) { TransactionWrapper(Session.Save(entity)); } So in other words, I pass a method call as a parameter, and the TransactionWrapper method wraps a transaction around the method call.

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• Regular expression to truncate a String

  - by user470184

  To truncate a String here is what I'm using : String test1 = "this is test truncation 1.pdf"; String p1 = test1.substring(0, 10) + "..."; System.out.println(p1); The output is 'this is te...' How can I access the file name extension so that output becomes : 'this is te... pdf' I could use substring method to access the last three characters but other file extensions could be 4 chars in length such as .aspx Is there a regular expression I can use so that "this is test truncation 1.pdf" becomes "this is te... pdf"

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• What is a good practice for handling SQL connections within a WCF call?

  - by Rising Star

  Suppose I want to create a (stateless) WCF service with three methods exposed on an endpoint: performSqlOperationA(), performSqlOperationB(), and performSqlOperationC(). Each method inserts data into a SQL database. The way I've seen things done at my office, each method would begin with code to initialize a SqlConnection object. Each method would end with code to safely dispose it. What is a good practice for coding these WCF methods so that the SqlConnection object is initialized and disposed in each method without having to do these things in each method? I know that I can have the connection initialized in the constructor for the class for the WCF methods, but I don't know about disposing it... The calls cannot be wrapped in a using block. One solution I'm familiar with is PostSharp, which allows me to set an attribute which causes specific code to automatically run at the beginning and end of each method call, but it would be greatly preferable to do this with only the .net framework.

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• CSS Float left question

  - by Minghui Yu

  <div id="slideshow-prevnext" class="slideshow-prevnext"> <a id="prev" class="left" href="#"><span class="invisible">Prev</span></a> <a id="next" class="right" href="#"><span class="invisible">Next</span></a> <a href="#" class="dot">&nbsp;</a> <a href="#" class="dot">&nbsp;</a> <a href="#" class="dot">&nbsp;</a> </div> I want the three <a href="#" class="dot">&nbsp;</a> appear on the left of and the two ("Prev" and "Next") on the right. How can I do it? I tried float:left but does not work. Edit: CSS is too long to post. Development site is here at : http://site2.ewart.library.ubc.ca/

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