dataframe
KEEP
dataframe | KEEP | |
---|---|---|
3 | 61 | |
712 | 3,287 | |
2.9% | 0.5% | |
9.6 | 5.4 | |
5 days ago | 10 days ago | |
Kotlin | Markdown | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
dataframe
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Plotting Financial Data in Kotlin with Kandy
For working with datasets (loading and processing), I use Kotlin DataFrame. It is a library designed for working with structured in-memory data, such as tabular or JSON. It offers convenient storage, manipulation, and data analysis with a convenient, typesafe, readable API. With features for data initialization and operations like filtering, sorting, and integration, Kotlin DataFrame is a powerful tool for data analytics. I also use the Kandy - Kotlin plotting library, designed specifically for full compatibility with Kotlin DataFrame. It brings many types of plots (including statistical) with rich customization options via a powerful Kotlin DSL. The best way to run all of this is Kotlin Notebook. It works out of the box, has native rendering of Kandy plots and DataFrame tables, and has IntelliJ IDEA support. It can also be run in Jupyter notebooks with a Kotlin kernel and on Datalore.
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How to use jvm libraries on Multiplatform (js related) project
kotlin-dataframe only supports JVM, it is not (yet) a multiplatform library and cannot be used in Kotlin/JS projects. https://github.com/Kotlin/dataframe/issues/24
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Kotlin Team AMA #3: Ask Us Anything
Kotlin DataFrame is a library for in-memory data manipulation
KEEP
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JEP draft: Exception handling in switch
`Either foo()` and `Foo foo() throws MyError` and are pretty much isomorphic.
https://github.com/Kotlin/KEEP/blob/master/proposals/stdlib/...
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Project Valhalla: A look inside Java's epic refactor
Nice. So for example, it looks like Kotlin has a nearly identical feature at the language level which will be optimizable when Valhalla ships: https://github.com/Kotlin/KEEP/blob/master/notes/value-class...
> In the future, in a Valhalla-capable JVM, JVM primitive classes will enable efficient representation of Kotlin value classes with an arbitrary number of underlying fields on JVM.
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Unchecked Java: Say Goodbye to Checked Exceptions Forever
Most other languages agree that checked exceptions are not good by not having them.
As for alternatives, Try/Result and similar monads have decent adoption even in Java, but personally I quite like the Kotlin philosophy [1] to not have generic error containers and either use runtime exceptions or make failures of the return type.
[1] https://github.com/Kotlin/KEEP/blob/master/proposals/stdlib/...
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Meet Kotlin 1.9 "data object"
If you want to read more and don't want to google it: https://github.com/Kotlin/KEEP/blob/data-objects/proposals/data-objects.md
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Coroutine books or resources
Under the hood: https://github.com/Kotlin/KEEP/blob/master/proposals/coroutines.md .
- How @Compose annotation works under the hood?
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KotlinConf ’23 Recap
you can check more here
- Implicit function arguments?
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If you could remove one feature from Kotlin which one would that be?
You can use explicit API mode, then everything needs explicit visibility
- Is runCatching in use in any of your projects ? My team is abusing it
What are some alternatives?
kotlindl - High-level Deep Learning Framework written in Kotlin and inspired by Keras
KorGE - KorGE Game Engine. Multiplatform Kotlin Game Engine
spring-fu - Configuration DSLs for Spring Boot
compose-multiplatform - Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
multik - Multidimensional array library for Kotlin
kotlin-multiplatform-libsodium - A kotlin multiplatform wrapper for libsodium, using directly built libsodium for jvm and native, and libsodium.js for js targets.
Decompose - Kotlin Multiplatform lifecycle-aware business logic components (aka BLoCs) with routing (navigation) and pluggable UI (Jetpack Compose, SwiftUI, JS React, etc.)
htmx - </> htmx - high power tools for HTML
kotlin-wrappers - Kotlin wrappers for popular JavaScript libraries
kotlin-power-assert - Kotlin compiler plugin to enable diagrammed function calls in the Kotlin programming language
swift-evolution - This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.