ARFF files (Attribute-Relation File Format) are the most common format for data used in Weka. Each ARFF file must have a header describing what each data instance should be like. The attributes that can be used are as follows:
Numeric
Real or integer numbers.
Nominal
Nominal attributes m...
Depending on the version of Weka being used different methods for loading ARFF files should be utilised.
Weka <3.5.5
The following sample code shows how to load an ARFF file:
import weka.core.Instances;
import java.io.BufferedReader;
import java.io.FileReader;
...
BufferedReader reader = n...
Many databases can be used in Weka. Firstly, the DatabaseUtils.props file must be edited to match your database; specifically you must provide your database's name, location, port and correct driver.
jdbcDriver=org.gjt.mm.mysql.Driver
jdbcURL=jdbc:mysql://localhost:3306/my_database
Then the dat...
Attribute Image capitalizes all characters of enumeration literals. The function Case_Rule_For_Names applies upper case for the first character and makes the rest lower case.
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Strings.Maps.Constants; use Ada.Strings.Maps.Constants;
with Ada.Strings.Fixed...
The FULL hint tells Oracle to perform a full table scan on a specified table, no matter if an index can be used.
create table fullTable(id) as select level from dual connect by level < 100000;
create index idx on fullTable(id);
With no hints, the index is used:
select count(1) from fullTabl...
Simply specifying a file destination, echo will create, write, or append to a file.
<echo file=example.txt" append="false">
hello world
</echo>
To print the contents of a file, we can use loadfile to read a file into a local property, and then use echo to print the value of it.
<loadfile property="contents" srcFile="example.txt" />
<echo message="${contents}" />
Open phone's settings
open battery
open menu and select "battery optimization"
from the dropdown menu select "all apps"
select the app you want to whitelist
select "don't optimize"
Now this app will show under not optimized apps.
An app can check whether it's...
To get the raw value of a field on the Context Item:
Sitecore.Context.Item["Field Name"];
To get the raw value of a field on a given item, item:
item["Field Name"];
Let's say you've got a table of loans, and another related table of parcels, where each loan can have one or more parcels associated with it. If you want a query to show each loan and a list of all its associated parcels, but you only want each loan to show up once, then you could use something lik...
You might have realized that $emit is scoped to the component that is emitting the event. That's a problem when you want to communicate between components far from one another in the component tree.
Note: In Vue1 you coud use $dispatch or $broadcast, but not in Vue2. The reason being that it doesn'...
<?php
// hook into the init action and call create_book_taxonomies when it fires
add_action( 'init', 'create_book_taxonomies', 0 );
// create taxonomy genres for the post type "book"
function create_book_taxonomies() {
// Add new taxonomy, make it hierarchical (like categorie...
In most cases, the range_lookup is used as FALSE (an exact match). The default for this parameter is TRUE - it is less commonly used in this form, but this example shows one usecase.
A supermarket gives a bonus based on the customers monthly spend.
If the customer spends 250 EUR or more in a mon...
Sometimes, it can be difficult to find the mathematical symbol you need. There are several options here. The first (and quickest) is to use Detexify, where you draw the symbol you'd like, and it tries to find what you want, like as shown below:
Another option is to use the comprehensive LaTeX sym...
