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r - How to pass dynamic column names in dplyr into custom function?

I have a dataset with the following structure: Classes tbl_df' and 'data.frame': 10 obs. of 7 variables: $ GdeName : ... .names = c(NA, -10L)) See Question&Answers more detail:os...

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networking - How to disable/enable network connection in c#

Basically I'm running some performance tests and don't want the external network to be the drag factor. I'm ... point home that would be cool. See Question&Answers more detail:os...

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ASP.NET Web API, unexpected end of MIME multi-part stream when uploading from Flex FileReference

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make column data as hyperlink (dataTable JQUERY)

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c++ - Disambiguate overloaded member function pointer being passed as template parameter

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Regex for parsing directory and filename

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c# - Get previous and next item in a IEnumerable using LINQ

I have an IEnumerable of a custom type. (That I've gotten from a SelectMany) I also have an item ... with readability being my primary concern. See Question&Answers more detail:os...

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Disable WebView touch events in Android

How do you disable all touch events in an Android WebView (or scrolling in particular)? I would like the activity to handle all touch events. See Question&Answers more detail:os...

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Jquery to open Bootstrap v3 modal of remote url

I have a page of links to internal pages I need to open up in a Bootstrap modal DIV. The problem is that ... shed some lights on this please? See Question&Answers more detail:os...

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PHP get previous array element knowing current array key

I have an array with specific keys: array( 420 => array(...), 430 => array(...), 555 => array( ... function, what set the current array element. See Question&Answers more detail:os...

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python - Line plot with arrows in matplotlib

I have a line graph that I want to plot using arrows instead of lines. That is, the line between successive pairs of ... a nicer way to do it? See Question&Answers more detail:os...

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trim - Php how to remove any last commas

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multithreading - Does Android Service run from a separated thread instead of UI?

I am currently using a alarmmanager to start a service for posting of location to http. The problem is when ... separated from the ui thread? See Question&Answers more detail:os...

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java - Android Context.bindService always returns false and ServiceConnection object is never triggered

I have followed the Local Service example provided by Google, but my Context::bindService(...) always returns ... am targeting Android 1.6 See Question&Answers more detail:os...

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Jenkins website root path

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ruby - Rails.cache error in Rails 3.1 - TypeError: can't dump hash with default proc

I running into an issue with the Rails.cache methods on 3.1.0.rc4 (ruby 1.9.2p180 (2011-02-18 revision ... . Any suggestions? Thanks in advance! See Question&Answers more detail:os...

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ios - detect "Allow Notifications" is on/off for iOS8

I am trying to detect the Local notification settings for the App in iOS 8 for UIUserNotificationSettings, it returns me ... [alert show]; } } See Question&Answers more detail:os...

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java - Close resource quietly using try-with-resources

Is it possible to ignore the exception thrown when a resource is closed using a try-with-resources statement? Example: class ... ) { } } } } See Question&Answers more detail:os...

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How does XSS work?

Can someone explain how XSS works in plain english? Maybe with an example. Googling didn't help much. See Question&Answers more detail:os...

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hash - Java: A "prime" number or a "power of two" as HashMap size?

Many books and tutorials say that the size of a hash table must be a prime to evenly distribute the keys in all ... two" as the hash table size? See Question&Answers more detail:os...

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How to count duplicates in Ruby Arrays

How do you count duplicates in a ruby array? For example, if my array had three a's, how could I count that See Question&Answers more detail:os...

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sdl - How to suppress console output in Python?

I'm using Pygame/SDL's joystick module to get input from a gamepad. Every time I call its get_hat() ... when the SDL library was compiled. See Question&Answers more detail:os...

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Generating iOS and Android icons in Cordova / PhoneGap

I have a freshly created Cordova project with the following config.xml setup (used the instructions from http://docs. ... .png" /> </widget> See Question&Answers more detail:os...

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javascript - How to compare two HTML elements

How can we compare two HTML elements whether they are identical or not ? I tried this thing but ... completely working implementation strategy. See Question&Answers more detail:os...

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c# - Catch Application Exceptions in a Windows Forms Application

Is there anyway to catch expections that is thrown by anywhere in the code? I would like to catch ... catch blocks for each functionality. See Question&Answers more detail:os...

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java - Convert Current date to integer

I want to convert the current date to integer value. By default, it returns long. When I try to convert long ... to integer(10 digit number)? See Question&Answers more detail:os...

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java - ProGuard for Android and GSON

I'm setting up ProGuard for my Android project. My project also uses GSON. I've researched ProGuard configurations ... for GSON in Android? See Question&Answers more detail:os...

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sql - Why don't DBMS's support ASSERTION

So I recently learned about ASSERTION in my databases course, and my prof noted that major databases don't ... with triggers or anything else. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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