# imports
import weka.core.converters.ConverterUtils.DataSource as DS
import weka.classifiers.Evaluation as Evaluation
import weka.classifiers.trees.J48 as J48
import java.util.Random as Random
import os
# load data
data = DS.read(os.environ.get("MOOC_DATA") + os.sep + "annea...
# Note: install jfreechartOffscreenRenderer package as well for JFreeChart library
# imports
import weka.classifiers.Evaluation as Evaluation
import weka.classifiers.functions.LinearRegression as LinearRegression
import weka.core.converters.ConverterUtils.DataSource as DS
import java.util.Ran...
###### Used for both Classification and Regression examples
library(randomForest)
library(car) ## For the Soils data
data(Soils)
######################################################
## RF Classification Example
set.seed(656) ## for ...
Ajax :
New request :
Client sends request : Server , Do you have new notification ?
Server sends response : Client , NO
connection ends
New request :
Client sends request : Server , Do you have new notification ?
Server sends response : Client , NO
connection ends
New request ...
By default, accessing an individual item in a template dom-repeat loop is by calling {{item}}. Passing in an as= attribute to template will allow you to switch out the default {{item}} syntax for something that is more customized to the module you are working with. In this case, we want to grab the ...
; IF d0 == 10 GO TO ten, ELSE GO TO other
CMP #10,d0 ; compare register contents to immediate value 10
; instruction affects the zero flag
BEQ ten ; branch if zero flag set
other:
; do whatever needs to be done for d0 != 10
BRA ...
If the first parameter is NOT NULL, NVL2 will return the second parameter. Otherwise it will return the third one.
SELECT NVL2(null, 'Foo', 'Bar'), NVL2(5, 'Foo', 'Bar') FROM DUAL;
NVL2(NULL,'FOO','BAR')NVL2(5,'FOO','BAR')BarFoo
A function that extends the functionality of the array by creating an object oriented remove function.
// Need to restrict the extension to elements that can be compared.
// The `Element` is the generics name defined by Array for its item types.
// This restriction also gives us access to `index(...
If oDic.Exists("US") Then
msgbox "The Key US Exist. The value is " + oDic("US")
Else
msgbox "Key Does not exist."
End If
Data is usually perceived as something static that is entered into a database and later queried. But in many environments, data is actually more similar to a product in an assembly line, moving from one environment to another and undergoing transformations along the way.
■ OLTP: online transactio...
Nested if()...else statements take more execution time (they are slower) in comparison to an if()...else ladder because the nested if()...else statements check all the inner conditional statements once the outer conditional if() statement is satisfied, whereas the if()..else ladder will stop condit...
The if statement is a conditional statement that allows a program to enter or not a specific section of code depending if the condition(s) of the statement are met or not. It can be found in mostly all the existing programming languages.
The if statement will usually take the following shape:
if(s...
It is possible to ask a program to execute a specific section of code only if an if statement is considered false. For this, we use the else key word.
if(statement)
{
// Code to execute if the statement is true.
}
else
{
// Code to execute if the statement is false.
}
Both code se...
Lets have a look at the native app lifecycle methods for different platforms.
Android.
//Xamarin.Forms.Platform.Android.FormsApplicationActivity lifecycle methods:
protected override void OnCreate(Bundle savedInstanceState);
protected override void OnDestroy();
protected override void OnPause()...
Consider the following code:
public async Task MethodA()
{
await MethodB();
// Do other work
}
public async Task MethodB()
{
await MethodC();
// Do other work
}
public async Task MethodC()
{
// Or await some other async work
await Task.Delay(100);
}
...
By default, floating point operations on float and double do not strictly adhere to the rules of the IEEE 754 specification. An expression is allowed to use implementation-specific extensions to the range of these values; essentially allowing them to be more accurate than required.
strictfp disable...
