Značky: #Rozne

Are you learning the R programming language? Do you want to learn how to do more tasks with R? Check out our Do More With R tutorials below -- many with videos shorter than 10 minutes.

In the table below, you can easily search all the tutorials by task, general topic, and specific R packages.

Available categories: big data, collaboration, dataviz, data analysis, data export, data import, data wrangling, ggplot, GIS, Microsoft, programming, RStudio, and vscode.

Some examples:

ggplot and other R data visualizations

Do you need to make static plots with R? Interactive graphs? Animations? Search below for terms such as ggplot, dataviz, and color. You'll get results such as Add color to ggplot2 visualization with the ggtext package , How to create interactive visualizations and linked interactive graphics with ggiraph and How to use built-in R colors and external palettes

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Značky: #Analytics, #Rozne

Minimal APIs in ASP.NET Core allow you to easily create RESTful APIs with minimal code and configuration. No matter what type of API we build, it is always important to minimize the amount of data transferred over the network, which saves bandwidth and improves the responsiveness of the app. We do this by compressing the payloads of both requests and responses.

Of course, that means we must decompress those payloads at the other end. In ASP.NET Core 7, request decompression is supported out of the box: You can now use the new request decompression middleware to enable your API endpoints to accept requests that have compressed data.

This article examines how you can work with request compression and decompression in ASP.NET Core 7 Minimal APIs. (Note that we discussed response compression in ASP.NET Core in a previous article.) To use the code examples provided in this article, you should have Visual Studio 2022 installed in your system. If you don’t already have a copy, you can download Visual Studio 2022 here .

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Značky: #C#, #Rozne

Do you have data sets scattered all over the place: multiple local folders, Git repos, cloud services, databases? Is it sometimes difficult to remember which data set contains what, and where they're all stored?

Thanks to the pointblank R package , you can document your data sets via R scripts in a report that not only describes column types and data provenance, but also includes where the data set is stored, how it gets updated, what if any key projects use it, and anything else you'd like to add. Since each data dictionary report is generated by an R script, you can include whatever metadata fields are important to you, then use that same structure for each data set.

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Značky: #Rozne

The unique approach of the Rust programming language results in better code with fewer compromises than C, C++, Go, and the other languages you probably use. It also gets updated regularly, often every month.

Where to download the latest Rust version

If you already have a previous version of Rust installed via rustup, you can access the latest version via the following command:

$ rustup update stable

The new features in Rust 1.69

Announced April 20 , Rust 1.69 offers no new major features but contains many small improvements, including more than 3,000 commits from more than 500 contributors, the Rust release team said.

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Značky: #Rust, #Rozne

Adoption of Java 17, the most recent Long Term Support (LTS) version of Java, has skyrocketed, growing 430% in the past year, according to New Relic’s latest report on Java usage. The report also found that Amazon Corretto is now the most-used Java Development Kit (JDK), with a 31% share of Java instances.

More than 9% of Java production applications use Java 17 today, versus fewer than 1% in 2022, the 2023 State of the Java Ecosystem Report report says. Java 17, aka JDK 17 , was published in September 2021. As an LTS release, Java 17 receives several years of Premier-level and extended support from Oracle.

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Značky: #Rozne, #Java

Many organizations reach a stage in their growth where the monolithic applications that once served them well start to hold them back. Perhaps the business needs new functionality that the existing architecture can’t support, or more flexible ways to store and access data for their apps. Team growth, conflicting performance requirements, and new competitive technologies can also pose a challenge to a singular, monolithic codebase. Adopting an event-driven microservices architecture can help you address these challenges.

Microservices overcome the limitations of monolithic apps by dividing those apps into small, purpose-built services, which can be custom tailored to the business problem they’re meant to solve. They provide you with the freedom to choose your own programming languages, frameworks, and databases as you see fit. Microservices can remodel, manage, and store data according to their own needs, providing you with complete control over how best to solve your business problems.

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Značky: #Rozne, #Microservices, #Containers, #Kubernetes, #Analytics

Python's datetime library, part of its standard library, provides datatypes and methods for working with dates and times. Dates and times are slippery, inconsistent things, however, and libraries for working with them can only smooth things over so much.

In this article, we'll explore how to use Python's datetime library, its datatypes, and its methods. You'll learn how to make the most of these features while steering clear of their traps and complexities in Python.

datetime objects and namespacing

The name datetime refers to both the datetime library and to one of the Python datatypes. The library is namespaced as just datetime . But the datatype for date-time objects is namespaced as datetime.datetime .

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Značky: #Rozne, #Python

One of the nicest improvements to developer experience in recent JavaScript history is the introduction of the async and await keywords, introduced in ES2017. Together, these elements make it easy to write asynchronous logic with a simple syntax. Under the hood, they use promises, but for many cases, async and await will help you write more readable and maintainable asynchronous code without thinking about implementation. In this article, we'll first look at how to use async await in your JavaScript programs. Then, we'll talk about some of the downstream implications of using the syntax.

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Značky: #JavaScript, #Rozne