Study group meeting once a month for existing/aspiring R contributors who want to gain/refresh basic skills in C programming.

The main study materials are from the C sessions of [CS50](https://cs50.harvard.edu/x/2025/), Harvard's Introduction to Computer Science. This will be supplemented with a chapter from [Deep R Programming](https://deepr.gagolewski.com/chapter/310-compiled.html) on R's C API.

See the [study group webpage](https://contributor.r-project.org/events/c-study-group-2025/) for the work schedule and further details.

There are other cohorts meeting at 12pm-1pm San Francisco time on Tuesdays (cohort 1) or 11am-12pm Sydney time on Thursdays (cohort 2) if this time is not so convenient.

R Contributors

Ella Kaye

C Study Group - cohort 3

Online event

We are looking forward to the April edition of the Karachi R User Meetup, sponsored by [Stat Devs](http://www.statdevs.com/) and[ R Consortium](https://www.r-consortium.org/)

It’s the age-old question – does advertising really work? Do the billions of pounds spent on marketing each year drive people to buy products – or would they just buy them anyway? And even if it does work, what is the optimal mix of spend across online and offline platforms? At what level do we exhaust our consumer base and end up wasting money? What happens if we stop advertising? These are just some of the questions econometric studies look to answer.

In partnership with December 19 (an independent media agency), we built a model to unpick the impact of over **£38M** of media spend on over **300,000 digital accounting product** sign-ups. It’s not just about the media though – we also used the model to assess the impact of factors outside of our control, for example advertising by our competitors, covid-19 lockdowns and Brexit – all of this through building our own econometric modeller in R.

During this talk, we’ll take you through our approach, including some of the more technical aspects within R – and how our insight is being used to spend the advertising budget more efficiently – whilst still increasing the number of sign-ups!

Karachi R User Group

Uzair Aslam

farhan khan

Umair Abbas

Muhammad Saad Khalid

Muhammad Umair

lohanadivya5

Does Advertising Work? How to measure the impact of our marketing investments?

**Event Announcement: Unilorin R User Group Meetup Series**
🎉 **Event Theme:** Understanding Quarto Documents: An In-Depth Exploration of Their Types, Formatting and a Step-by-Step Guide to Creation
📅 **Date:** Saturday, April 26, 2025 at 1 PM WAT
⏰ **Duration:** 2-hour session
📍 **Venue:** Zoom

Join us for another insightful session in the Unilorin R User Group Meetup Series! This event is perfect for anyone interested in creating professional, reproducible documents using **Quarto**—a powerful publishing system that integrates seamlessly with R.
Whether you're a beginner just starting with R Markdown or a more experienced user looking to level up with Quarto, this session will provide a comprehensive guide from concepts to creation.

🔍 **What You’ll Learn:**
**Introduction to Quarto Documents**
Get familiar with what makes Quarto unique and how it compares to R Markdown.
**Types of Quarto Documents**
Explore various document types—presentations, reports, dashboards, and websites—and when to use each.

**Formatting and Customization**
Learn how to structure your Quarto documents, apply themes, work with code chunks, and add citations and tables of contents.

**Step-by-Step Guide to Creating a Quarto Document**
Follow a hands-on walkthrough to create your first Quarto document, including YAML setup, writing content, rendering, and sharing your work.

**Bonus Tips & Best Practices**
Gain insights into publishing workflows, project organization, and reproducible research with Quarto.

This interactive and beginner-friendly session is designed to equip you with the skills to create stylish, functional, and reproducible documents for your academic, professional, or personal projects.

**RSVP Now!**
Let’s build together with R and Quarto. See you there!

Unilorin R Users Group

Dr. Samuel Farohunbi

Dr. MK Garba

Ogundepo Ezekiel

dw35919

Yusuf Akintunde Azeez

Ferhat Ünal

Kenneth Enwerem

Oluwagbade Odimayo

Alphonse Mugisha

Ayodeji Adekunle Ayo 

goajao

jafman022

John Lapah

Adams Dramani 

nihadkannur

Jacob Apibilla Ayembilla

Jyoti Bhogal

GRACIELA 

mmyusuf013

Simon Ereh

Understanding Quarto Documents: Types, Formatting, and Creation

Study group meeting once a month for existing/aspiring R contributors who want to gain/refresh basic skills in C programming.

The main study materials are from the C sessions of [CS50](https://cs50.harvard.edu/x/2025/), Harvard's Introduction to Computer Science. This will be supplemented with a chapter from [Deep R Programming](https://deepr.gagolewski.com/chapter/310-compiled.html) on R's C API.

See the [study group webpage](https://contributor.r-project.org/events/c-study-group-2025/) for the work schedule and further details.

There are other cohorts meeting at 11am-12am Sydney time on Thursdays (cohort 2) and 12pm-1pm on Fridays (cohort 3) if this time is not so convenient.

Victor Ordu

C Study Group - cohort 1

**¡Llega el Club de Libro: Mastering Shiny!**

**Organizado por R-Ladies Buenos Aires & R en Buenos Aires 🚀**
**📅 Encuentro 4: Miércoles 30 de abril, 18:30-20:00 (UTC-3)**

* **Capítulos a abordar:** Capítulo 6: Layout, themes, HTML
Presentan: [Luis Verde Arregoitia](https://github.com/luisdva/) & [Virginia García Alonso](https://github.com/virginiagarciaalonso)

**¿Querés aprender Shiny en un espacio colaborativo?**
Sumate a este club donde resolveremos ejercicios y debatiremos dudas sobre el libro Mastering Shiny de Hadley Wickham y Garrett Grolemund.
**Link al libro [Mastering Shiny - Hadley Wickham](https://mastering-shiny.org/)**

**¿Cómo funciona?**

* 10 encuentros virtuales de 1:30 hs entre marzo y julio
* Presentaciones sencillas de los capítulos por integrantes de la comunidad
* Resolución grupal de ejercicios
* Grabaciones de las sesiones
* Canal de Slack para dudas y recursos

**No importa si recién estás empezando con Shiny: ¡este club es para aprender juntas!**
**Si te animás a presentar un capítulo, podés hacerlo en este link: [http://tiny.cc/club_de_lectura_shiny](http://tiny.cc/club_de_lectura_shiny)**

**IMPORTANTE**
Para participar seleccioná "Asistiré" en este evento y asegurate de tener instalado Zoom en tu computadora.

**Por razones de seguridad no compartiremos el link para ingresar a Zoom de manera pública.** El mismo día del evento, horas antes enviaremos un mail a través de Meetup a todas las personas que confirmaron asistencia con el link para que puedas unirte a la videollamada.
**SI no lo llegas a recibir el link de zoom por favor comunicate por nuestro canal de slack #mastering-shiny o por mail [renbaires@gmail.com](http://renbaires@gmail.com/) para solucionarlo pronto.**

**¡Te esperamos! 💜💻**

R en Buenos Aires

Andrea Gomez Vargas

Ariana Bardauil

Emanuel Ciardullo

santiago bucciarelli

Malena Mendez Isla

Jesica Formoso

daniela zacharias

Monica

Alberti Alejandro Mora

Club de Libro Mastering Shiny: Encuentro 4

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