In LR Classifier, he probabilities describing the possible outcomes of a single trial are modeled using a logistic function. It is implemented in the linear_model library
from sklearn.linear_model import LogisticRegression
The sklearn LR implementation can fit binary, One-vs- Rest, or multinomia...
New Java programmers often forget, or fail to fully comprehend, that the Java String class is immutable. This leads to problems like the one in the following example:
public class Shout {
public static void main(String[] args) {
for (String s : args) {
s.toUpperCase();
...
Apache Kafka™ is a distributed streaming platform.
Which means
1-It lets you publish and subscribe to streams of records. In this respect it is similar to a message queue or enterprise messaging system.
2-It lets you store streams of records in a fault-tolerant way.
3-It lets you process streams...
K-fold cross-validation is a systematic process for repeating the train/test split procedure multiple times, in order to reduce the variance associated with a single trial of train/test split. You essentially split the entire dataset into K equal size "folds", and each fold is used once fo...
This tool let you list, create, alter and describe topics.
List topics:
kafka-topics --zookeeper localhost:2181 --list
Create a topic:
kafka-topics --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
creates a topic with one partition and no replication....
This tool lets you produce messages from the command-line.
Send simple string messages to a topic:
kafka-console-producer --broker-list localhost:9092 --topic test
here is a message
here is another message
^D
(each new line is a new message, type ctrl+D or ctrl+C to stop)
Send messages with...
This tool let's you consume messages from a topic.
to use the old consumer implementation, replace --bootstrap-server with --zookeeper.
Display simple messages:
kafka-console-consumer --bootstrap-server localhost:9092 --topic test
Consume old messages:
In order to see older messages, you...
This consumer is a low-level tool which allows you to consume messages from specific partitions, offsets and replicas.
Useful parameters:
parition: the specific partition to consume from (default to all)
offset: the beginning offset. Use -2 to consume messages from the beginning, -1 to consume ...
This tool allows you to list, describe, or delete consumer groups.
Have a look at this article for more information about consumer groups.
if you still use the old consumer implementation, replace --bootstrap-server with --zookeeper.
List consumer groups:
kafka-consumer-groups --bootstrap-s...
On initial startup of your app, the FCM SDK generates a registration token for the client app instance.
If you want to target single devices or create device groups, you'll need to access this token by extending FirebaseInstanceIdService.
The onTokenRefresh callback fires whenever a new token is g...
This example uses the gson library to map java objects to json strings. The (de)serializers are generic, but they don't always need to be !
Serializer
Code
public class GsonSerializer<T> implements Serializer<T> {
private Gson gson = new GsonBuilder().create();
@Over...
Make a simple Hello World Example using your django.
let's make sure that you have django installed on your PC first.
open a terminal and type: python -c "import django"
-->if no error comes that means django is already installed.
Now lets create a project in django. For that write ...
In Unit Test layer we usually test the Business Layer functionalities. And in order to do this, we will remove the Data Layer (Entity Framework) dependencies.
And the question now is: How can I remove the Entity Framework dependencies in order to unit test the Business Layer functions?
And the ans...
Download visual studio code from here Visual studio code. Select your target installer[mac|windows|linux].
Go to downloaded file in your local.
Below steps in volved for installing
Installation finished successfully.
After installing Visual studio code configure .net core and C#.
Configure C# based on market-place.
Reference Url: C# market place .net core
Launch Visual studio code.
Press [ctrl + P]
paste "ext install csharp" this and hit.
Once done above steps , C# extension available i...
Open the project folder in VScode.
Sample here i am setting break point in home controller.
Now click the debug option.
add debug configuration like below. Make sure .Net core Launch(web) is selected.
You can see break point will hit , once you start debugging by press run icon.
Then gi...
In our AppServiceProvider.php
public function boot()
{
HasMany::macro('toHasOne', function() {
return new HasOne(
$this->query,
$this->parent,
$this->foreignKey,
$this->localKey
);
});
}
Suppose we have shop modal and ...
