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Remove duplicated rows
...moval, either from specific columns/variables (as in this question) or considering all columns/variables. dplyr is part of the tidyverse.
Data and package
library(dplyr)
dat <- data.frame(a = rep(c(1,2),4), b = rep(LETTERS[1:4],2))
Remove rows duplicated in a specific column (e.g., columna)
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Using the last-child selector
...ode:
$(function(){
$("#nav li:last-child").css("border-bottom","1px solid #b5b5b5")
})
You can find more info about here : http://api.jquery.com/css/#css2
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Calling Objective-C method from C++ member function?
...voke a specific Objective-C method FROM C++
int MyObjectDoSomethingWith (void *myObjectInstance, void *parameter);
#endif
MyObject.h
#import "MyObject-C-Interface.h"
// An Objective-C class that needs to be accessed from C++
@interface MyObject : NSObject
{
int someVar;
}
// The Objective-C...
Intercepting links from the browser to open my Android app
...
Use an android.intent.action.VIEW of category android.intent.category.BROWSABLE.
From Romain Guy's Photostream app's AndroidManifest.xml,
<activity
android:name=".PhotostreamActivity"
android:label="@string/appl...
Role/Purpose of ContextLoaderListener in Spring?
...r is that it creates a WebApplicationContext and WebApplicationContext provides access to the ServletContext via ServletContextAware beans and the getServletContext method.
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How to cancel a local git commit
...
I don't know what this did, but a lot of files appeard on my change list, files I didn't touch
– FRR
Feb 5 '15 at 14:05
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Android: set view style programmatically
...without extending as the 3 arg constructor is public anyhow developer.android.com/reference/android/widget/…, android.util.AttributeSet, int)
– Dori
Jan 27 '14 at 10:44
1
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Python add item to the tuple
I have some object.ID-s which I try to store in the user session as tuple. When I add first one it works but tuple looks like (u'2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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HTML File Selection Event
...rk if the user picks the same file more than once in a row since the file didn't change.
– bob0the0mighty
Oct 26 '16 at 15:21
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.NET NewtonSoft JSON deserialize map to a different property name
...y("score ")]
public string Score { get; set; }
[JsonProperty("team_id")]
public string TeamId { get; set; }
}
public class Team
{
public string v1 { get; set; }
[JsonProperty("attributes")]
public TeamScore TeamScores { get; set; }
}
public class RootObject
{
public Lis...