R for Good Academy Blog

Can Juliet manage without Romeo? How much she should spend, save, and invest to achieve that?

R4GoodPersonalFinances
R package
RBloggers
personal finance
retirement
life-cycle model
financial planning
financial report
You will learn how to quickly get to optimal decisions about discretionary spending and portfolio allocation by simulating scenarios for a single-person household. We will use reasonable defaults to simplify the example, but you can customize them to your own scenarios.
July 27, 2025
Kamil Wais, Olesia Wais

We released R4GoodPersonalFinances 1.0.0!

R4GoodPersonalFinances
R package
Personal Finances
life-cycle model
net-worth
portfolio optimization
This major release introduces probably first in the world (open-sourced) implementation of a new multilevel life-cycle modeling of a household finances. It connects life-cycle models with single-period net-worth Markowitz optimization models and allows for high degree of personalization. The implementation is based on a novel theoretical framework, described by Thomas M. Idzorek and Paul D. Kaplan in “Lifetime Financial Advice: A Personalized Optimal Multilevel Approach” (2024).
June 10, 2025
Kamil Wais, Olesia Wais

Why and How to Calculate Retirement Ruin Probability?

R4GoodPersonalFinances
R package
RBloggers
Personal Finances
retirement
withdrawal rates
Safe Withdrawal Rate
SWR
survival rates
Gompertz model
You will learn why so called Safe Withdrawal Rates (SWR) might not be reliable. You will understand the importance of considering the uncertainties of our lifespan and portfolio returns. You will learn what retirement ruin probability is, how to calculate it, and when to apply it while being aware of its limitations.
April 19, 2025
Kamil Wais, Olesia Wais

How to Determine Our Optimal Asset Allocation?

R4GoodPersonalFinances
R package
R
RBloggers
asset allocation
investing
EDO
TIPS
ETF
Merton Share
Risk Adjusted Returns
You’ll learn how to manage your savings through investments that are simple, cost-effective, and poised for long-term growth. You’ll also understand why it’s unwise to keep all savings exclusively as cash, bonds, and stocks. The authors will introduce and walk you through a formula, the Merton Share formula, to help identify an optimal balance between risky and safe assets in your portfolio and adjust it to changing economy.
October 31, 2024
Kamil Wais, Olesia Wais

How should I start learning Data Science skills?

Data Science
MOOCs
R
programming languages
books
studies
recommendations
On numerous occasions, I’ve been approached with queries on how to begin acquiring Data Science skills. Should you dive into a stack of books, enroll in online courses, pursue post-graduate studies, learn from English content or in your native language, or perhaps invest in paid workshops? Or maybe you’re considering self-studying from the plethora of free content available online. Now, there are even more possibilities than there were when I started with Data Science. Even back then, I found myself struggling to make the right decision and find the optimal path.
September 24, 2023
Kamil Wais

For whom is the R4Good.Academy? Is it for You?

R4Good.Academy
Wondering if our educational program R4Good.Academy is the right fit for you? Don’t worry about your background, age, experience, or technical skills. Our content may not suit everyone, but perhaps not for the reasons you think. Before we delve into whether the R4Good.Academy is the right fit for you, let’s first clarify who the academy is intended for.
August 24, 2023
Kamil Wais

What are the benefits of learning Data Science, Programming, and Personal Finance skills simultaneously?

Data Science
Programming
Personal Finances
Ever thought about the skills you wish you’d learned earlier in life? Wondering which ones are truly paramount? Reflecting on my own experience, I’ve pinpointed three key areas: Data Science, Programming, and Personal Finances. Each field is valuable in its own right. Yet, it’s when they’re combined that things get really interesting. This blend creates a powerful synergy that can greatly enhance both our professional and personal paths. Let’s dig deeper into these skills individually, and then examine the profound impact of integrating them.
August 14, 2023
Kamil Wais
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DISCLAIMER! The content on this blog is provided solely for educational purposes. It does not constitute any form of investment advice, recommendation to buy or sell any securities, or suggestion to adopt any investment strategy. Any investment strategies and results discussed herein are for illustration purposes only. The content reflects the observations and views of the author(s) at the time of writing, which are subject to change at any time without prior notice. The information is derived from sources deemed reliable by the authors, but its accuracy and completeness cannot be guaranteed. This material does not take into account specific investment objectives, financial situations, or the particular needs of any individual reader. Any views regarding future outcomes may or may not materialize. Past performance is not indicative of future results. This content is not investment advice or information recommending or suggesting an investment strategy within the meaning of Article 20(1) of Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse. Investing always involves risks, and any investment decisions are made at your own responsibility.