Language Selection

English French German Italian Portuguese Spanish

Programming Leftovers

Submitted by Roy Schestowitz on Monday 20th of June 2022 07:38:32 AM Filed under
Development
  • Why You Should (or Shouldn’t) Build an API Client

    These days web Application Programming Interfaces (APIs) are everywhere (scientific data sources, your system for Customer relationship management, cat facts API…). Do you need to write some R code wrapping a web resource such as an API? Packaging it up might be useful to you or your team for the same reason as any code. Now, whether you really want to publicize the package and to guarantee its maintenance might be slightly trickier than for other packages, as the usefulness and status of your package will depend on the web API being up and running according to expectations. This creates a surface for failures that might be more or less scary depending on your trust in the upstream maintainers.

    In this post, we will go over whether you should bother maintain a package wrapping a web API and we will provide suggestions of useful resources.

  • How to declare a Two Dimensional Array of pointers in C?

    A Two Dimensional array of pointers is an array that has variables of pointer type. This means that the variables stored in the 2D array are such that each variable points to a particular address of some other element.

  • R Vectors

    A vector is the basic data structure in R that stores data of similar types. For example,

    Suppose we need to record the age of 5 employees. Instead of creating 5 separate variables, we can simply create a vector.

  • PySpark SQL Case When

    We will discuss about Pyspark – a significant data processing technology that can handle data on a petabyte-scale, PySpark When Otherwise, and SQL Case in PySpark When.

  • PySpark Fillna() Method

    We’ll learn about the PySpark library in this session. It is a general-purpose, in-memory, distributed processing engine that lets you effectively manage the data across several workstations. We’ll also learn about the PySpark fillna() method that is used to fill the null values in the dataframe with a custom value, along with its examples.

  • Pandas Isin() Method

    Pandas isin() method helps search the input set of values in the given DataFrame . We will discuss Pandas, its isin() method, and its examples.

  • Select Multiple Columns in Pandas

    We will be discussing Pandas in Python, an open-source library that delivers high-performance data structures and data analysis tools that are ready to use. We will also learn about the DataFrame, the advantages of Pandas, and how you can use Pandas to select multiple columns of a DataFrame . Let’s get started!

  • Where is the memory allocated for Arrays in Java?

    Each time an array is declared in the program, contiguous memory is allocated to it.

»

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6