This plugin is mandatory to make Gerrit able to receive message from other services. As an example, it has to be install to use Sonar Gerrit plugin
Install jar file under plugins folder
Default configuration is sufficient
A feature that has near zero variance is a good candidate for removal.
You can manually detect numerical variance below your own threshold:
data("GermanCredit")
variances<-apply(GermanCredit, 2, var)
variances[which(variances<=0.0025)]
Or, you can use the caret package to find...
If a feature is largely lacking data, it is a good candidate for removal:
library(VIM)
data(sleep)
colMeans(is.na(sleep))
BodyWgt BrainWgt NonD Dream Sleep Span Gest
0.00000000 0.00000000 0.22580645 0.19354839 0.06451613 0.06451613 0.06451613
Pred ...
Closely correlated features may add variance to your model, and removing one of a correlated pair might help reduce that. There are lots of ways to detect correlation. Here's one:
library(purrr) # in order to use keep()
# select correlatable vars
toCorrelate<-mtcars %>% keep(is.numeric)
...
By default all enum values are resolved to numbers. Let's say if you have something like
enum MimeType {
JPEG,
PNG,
PDF
}
the real value behind e.g. MimeType.PDF will be 2.
But some of the time it is important to have the enum resolve to a different type. E.g. you receive the value fr...
Using canvas elements
HTML provides the canvas element for building raster-based images.
First build a canvas for holding image pixel information.
var canvas = document.createElement('canvas');
canvas.width = 500;
canvas.height = 250;
Then select a context for the canvas, in this case two-di...
To externalise a distributed systems configuration Spring Cloud Config provides server and client-side support needed for externalising and centralising your configuration.
To get started quickly you could use Spring Initializr to bootstrap your server. Add the Config Server dependency to automatic...
To setup JVM options inside elastic beanstalk, your bundle file must be like this:
-bundle.zip
|--.ebextensions //do not forget the dot at the beginning of the name
|--jvm.config
|--java_app.jar
And, the jvm.config file must be set like this:
option_settings: ...
On Mac OSX computers with MacPorts installed, open a terminal window and type:
port list | grep scala
This will list all the Scala-related packages available. To install one (in this example the 2.11 version of Scala):
sudo port install scala2.11
(The 2.11 may change if you want to install a...
ORMLite is an Object Relational Mapping package that provides simple and lightweight functionality for persisting Java objects to SQL databases while avoiding the complexity and overhead of more standard ORM packages.
Speaking for Android, OrmLite is implemented over the out-of-the-box supported da...
Launch standalone player activity
Intent standAlonePlayerIntent = YouTubeStandalonePlayer.createVideoIntent((Activity) context,
Config.YOUTUBE_API_KEY, // which you have created in step 3
videoId, // video which is to be played
100, //The time,...
Routes in Laravel are case-sensitive. It means that a route like
Route::get('login', ...);
will match a GET request to /login but will not match a GET request to /Login.
In order to make your routes case-insensitive, you need to create a new validator class that will match requested URLs agains...
Most of the time a TabLayout is used together with a ViewPager, in order to get the swipe functionality that comes with it.
It is possible to use a TabLayout without a ViewPager by using a TabLayout.OnTabSelectedListener.
First, add a TabLayout to your activity's XML file:
<android.support.des...
A DataGridView is a control in .NET UI design, which consists of rows and columns used to arrange data.
Often there is need to depict data either from a spreadsheet or database on a UI design in an application. When this data is to be shown grouped by its properties, we choose a DataGridView.
In C...
The most sensitive information of a WordPress install is stored in the wp-config.php file. If a hacker gets access to this file then they have total control of your website.
By default wp-config.php is stored in the WordPress install folder. To make this file harder to steal you can move it out of ...
If you have an attribute that needs to be saved and retrieved to database as an object, then specify the name of that attribute using the serialize method and it will be handled automatically.
The attribute must be declared as a text field.
In the model you must declare the type of the field (Hash...
You need to get some details from your OAuth provider of choice. We'll be looking at Google, but ASP.NET is also set up to allow out-the-box use of Twitter, Facebook and Microsoft (obviously).
You'll want to go to the Google developer console (https://console.developers.google.com/) and create a pr...
app.module.ts
Add these into your app.module.ts file to use reactive forms
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.comp...
