General Dev>In The News

Using NumPy to replace Pandas GroupBy-Apply pattern for performance

CommunityNews

CommunityNews

Using NumPy to replace Pandas GroupBy-Apply pattern for performance

Using NumPy to replace Pandas GroupBy-Apply pattern for performance.
If you use PySpark a lot you would know that the DataFrame API is great. However there are times when it is not sufficient because it does not cover every single piece of functionality we may want. This is where the Pandas UDF functionality comes in. The nice thing about the Pandas UDF functionality is that it uses Arrow for data transfer between Spark and Pandas which minimizes serialization-deserialization costs. I have a slight preference for Pandas Function API over Pandas UDF but now let’s get to the meat of the post which is about speeding up the Pandas GroupBy-Apply pattern by using NumPy instead.

Read in full here:

This thread was posted by one of our members via one of our news source trackers.

View thread on forum
#performance#pandas
0 559 0

Where Next?

View thread on forum
performance
pandas
Home General Dev>In The News
#performance#pandas
0 559 0
Last post

Popular General Dev topics Top

First poster: dimitarvp
General Dev>In The News

Remote working: Is Big Tech going off work from home?
On Wednesday last week, Google’s Fiona Cicconi wrote to company employees. She announced that Google was bringing forward its timetable ...
bbc.co.uk
#remote
31 1342 10
New
First poster: bot
General Dev>In The News

I made a home security system, powered by a Raspberry Pi 3
Raspberry Pi security alarm — the basics. In November last year — I started building a DIY security alarm system, using a Raspberry Pi a...
blog.cavelab.dev
/security
0 2111 0
New
First poster: Korbin73
General Dev>In The News

Whatever happened to Elm, anyway?
Whatever happened to Elm, anyway?. I see this question pop up quite frequently in lots of different arenas - folks are curious as to wha...
derw.substack.com
/elm
17 1142 12
New
First poster: joeb
General Dev>In The News

Rust has been forked to the Crab Language
GitHub - crablang/crab: A community fork of a language named after a plant fungus. All of the memory-safe features you love, now with 100...
github.com
/rust
0 1222 1
New
First poster: dyowee
General Dev>In The News

Go Package for Building Progressive Web Apps
A Go package for building Progressive Web Apps. A package for building progressive web apps (PWA) with the Go programming language (Gola...
go-app.dev
#apps/go#web/wasm
2 1104 1
New
CommunityNews
General Dev>In The News

SLUM: The Shadow Library Uptime Monitor
SLUM: The Shadow Library Uptime Monitor. This dashboard tracks the availability of popular shadow libraries in real time from a US-based...
open-slum.org
#library#monitor
0 2036 0
New
CommunityNews
General Dev>In The News

Deepseek - starting this week we'll open-source 5 repos
We’re a tiny team @deepseek-ai pushing our limits in AGI exploration. Starting this week , Feb 24, 2025 we’ll open-source 5 repos – one ...
github.com
#github/deepseek
1 736 0
New
First poster: chris.johan
General Dev>In The News

It looks like Microsoft is about to kill Skype
Skype’s days appear to be numbered, as a hidden string in the latest Skype for Windows preview suggests Microsoft will shutter the servic...
windowscentral.com
#microsoft
3 433 2
New
CommunityNews
General Dev>In The News

Self-Hosting a Firefox Sync Server
After switching from Firefox to LibreWolf, I became interested in the idea of self-hosting my own Firefox Sync server. Although I had see...
blog.diego.dev
#hosting#firefox
0 615 0
New
CommunityNews
General Dev>In The News

The Meter, Golden Ratio, Pyramids, and Cubits, Oh My
The French originated the meter in the 1790s as one/ten-millionth of the distance from the equator to the north pole along a meridian thr...
iforgeiron.com
0 207 0
New

Other popular topics Top

AstonJ
Science/Tech>Tech Chat

What are you watching?
Or looking forward to? :nerd_face:
#community
483 11078 254
New
Rainer
Community>Journals

Programming Erlang Book Club
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
/erlang/book-programming-erlang-2nd-edition#book-club
195 6634 95
New
AstonJ
General Dev>Hardware

Seen any cool new keyboards?
We have a thread about the keyboards we have, but what about nice keyboards we come across that we want? If you have seen any that look n...
/keyboards#mechanical-keyboards
49 5587 39
New
PragmaticBookshelf
Game Dev>Learning Resources

Hands-on Rust: Effective Learning through 2D Game Development and Play
Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters...
pragprog.com
#pragprog/rust#published-book/book-hands-on-rust
116 9419 30
New
Exadra37
Linux>Questions

What is the most minimalist Linux server distro?
I am asking for any distro that only has the bare-bones to be able to get a shell in the server and then just install the packages as we ...
#linux#servers
66 23964 24
New
AstonJ
Backend>Chat

Rails console using 100% CPU in dev (fix)
If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
/ruby/rails
3 3971 3
New
Help
Game Dev>Questions

Can I use Java to program a game for Nintendo switch?
I am trying to crate a game for the Nintendo switch, I wanted to use Java as I am comfortable with that programming language. Can you use...
/java#nintendo
8 3968 3
New
PragmaticBookshelf
Backend>Learning Resources

Ash Framework
Explore the power of Ash Framework by modeling and building the domain for a real-world web application. Rebecca Le @sevenseacat and ...
pragprog.com
#pragprog/elixir#published-book/ash/book-ash-framework
15 5191 9
New
PragmaticBookshelf
Backend>Learning Resources

MySQL 9 Essentials
A concise guide to MySQL 9 database administration, covering fundamental concepts, techniques, and best practices. Neil Smyth MySQL...
pragprog.com
#pragprog#published-book/mysql/book-mysql-9-essentials
2 2579 0
New
mindriot
General Dev>Reviews

Keyboard Review: UHK60V2 vs Defy vs Voyager vs Glove80 vs Svalboard
Ok, well here are some thoughts and opinions on some of the ergonomic keyboards I have, I guess like mini review of each that I use enoug...
/keyboards#uhk60v2#defy#voyager#glove80#svalboard
5 3327 7
New
Back to top

Sponsor Spotlight

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

General Dev>In The News

General Dev In The News ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap