Reflection on My Dashboard Development Journey

I was totally clueless when I first dipped my toes in dashboard development. I thought it was just about making charts, but soon, I discovered it entailed much more. In the beginning, the ride was quite turbulent. I had to learn many things—lots of trial and error, with plenty

Introduction to Exploratory Data Analysis with Seaborn

In my previous blog, I talked about the various data visualisation libraries available in Python, and I highlighted Seaborn as the one I'm focused on learning first. If you haven't checked it out yet, you can find it here: Data Visualization Libraries. Since then, I'

Python Data Visualization Libraries

The two tools I use for data visualisation are Excel and Tableau. They are easy to share with most business users. They have been my go-to tools. But now I want to make a shift. They're not as efficient when exploring data and understanding the data I'

Cohort Analysis- What is it? What do you do with it? How to read it?

My first encounter with Cohort Analysis occurred during a Tableau course I took a few years back. Before that, I had no clue what it was all about. I was blown away by how powerful and insightful it can be. Sadly, I don't get to use this kind

Design Thinking Meets Dashboard Development

This blog is a week late- apologies. I spent my last weekend turning around a hefty assignment. The project? I was tasked to assist Daniel, a national marketing manager at Spotify, in navigating through an enormous Excel file with ~ 58,000 data points on Spotify and its competitor, YouTube. Daniel

Data Storytelling

I'll never forget the time I was so terrified of public speaking that I went to my manager with teary eyes because I couldn't deal with the prospect of being the person launching the new BI solution developed by our parent company to over a hundred

Algorithmic Thinking for a Better Life

I remember my first encounter with the term "algorithm." It was in a high school computer science class. At the time, it didn't really make a big impact on me. Fast forward two decades and my perspective has shifted significantly. A big part of this change

Exploratory Data Analysis (EDA) as a Framework to Improve Learning

I never thought I'd go to university, as no one in my family had before me. But in year 11, a teacher changed my trajectory, and I began to believe hard work was key to academic success. Despite all the hours I put in during my undergrad, my

Bias in Machine Learning

Machine learning, part of AI, is everywhere, and there's no denying it's changing the game in a big way. But as much as I'm all for data-driven decisions and the cool things AI can do, I think people need to be aware that it&

Frequentist vs Bayesian Statistics: Understanding the Key Differences

Hi everyone! I'm back from my holiday. Did you miss me? It's been hard to get back into the swing of things, but I think I'll manage. Before I departed for my holiday, many of my blogs have been on exploring statistics. It'

Introduction to Markov Chain

A couple of weeks back, while brushing up on my Monte Carlo Simulation knowledge for the blog post, I stumbled upon the term "Markov Chain" in some YouTube recommendations. Naturally, it piqued my curiosity, so I decided to have a look. Surprisingly, it turned out to be quite

Monte Carlo Simulation-An Overview

During my studies in Applied Finance years ago, I recall sitting in an economics class, slightly disengaged and restless. However, the moment my lecturer announced the topic for the day was "Monte Carlo simulation", my attention snapped back. Oddly enough, it wasn't the financial implications that

Vector Embeddings & Vector Databases for Beginners

I've been delving into the world of databases in preparation for an upcoming project. I'll admit, I'm feeling both anxious and excited, more anxious, I would say, about it. I can sense self-doubt lurking in the shadows and have been actively working to conquer

What is Exponential Distribution?

In my year two days, I think I was seven then, my brother and I always seemed to be the last to be collected from school. Our usual spot was the bench near the entrance, eyes fixed on the gate, waiting for the familiar sight of either mom or dad

What is Poisson Distribution?

When I used to work in a retail pharmacy, I've always been intrigued by the trend in customer arrival before the door shuts. This particular pharmacy I used to work at closes its doors at 8:00 pm every Thursday and is situated in a shopping centre. In

Binomial Distribution Simplified

If you've ever delved into probability distribution through online videos, chances are you've encountered countless coin-flipping examples. They're classic examples, but let's be honest- they are a bit snooze-inducing. My brain thinks it's nap time whenever it sees those coins

What is Normal Distribution?

Last week, I blogged about probability distributions, providing a beginner's view. I finished the blog by asking for a guess of which distribution I would dive into this week. I bet most would have guessed "normal distribution". Am I right? Probability tells me that it'

Probability Distributions for Beginners

If I told my younger self that statistics would become cool one day, I'm pretty sure she would have laughed in my face and said, "Statistic, hip? Yeah, right, what BS," and rolled her eyes. I remember how much I hated statistics when I studied pharmacy;

Bayes' Theorem for Beginners

You know, contrary to what most people might think, math isn't really my strong suit. I've always found it kind of tough because, honestly, it can be pretty abstract and those Greek symbols just add to the confusion. Math's like a puzzle where each

Understanding Instagram Algorithms

"You're not good enough." "What do you have to share with the world?" "People are going to laugh and ridicule you". For years, I allowed voices like these to hold me back. Then, I came across Austin Kleon's book, Show

What is Geographic Information System (GIS)?

Back in school we used to group kids into two categories: street smart or book smart. Little did I know then that intelligence comes in many different dimensions. Depending on the sources, the number of intelligence types may vary, but here I've compiled a list of nine: 1.

Data Lakehouse Explained

Occasionally, I find myself craving for chimaek, the perfect combo of Korean fried chicken and beer. This flavourful union of crispy chicken and bubbly beer is nothing short of heavenly. Just last night, I succumbed to my cravings that had been simmering for weeks. We were a group of five,

What is Data as a Product?

Just the other day, I was deep into a workshop on agile practices. While tackling an exercise, I steered the discussion towards data and its role in driving business success. This discussion took me down memory lane to an event I had attended earlier this year. The event was put

Outliers and Anomalies in Data

A colleague of mine, a whiz when it comes to data science, ran a training session about data outliers and anomalies earlier this week. She even demoed a tool she developed for spotting these quirky data points. Regrettably, I couldn't attend the training session because of a conflicting

LangChain for Beginners

LangChain has been appearing frequently on my LinkedIn feed lately, particularly with the recent release of a short course on DeepLearning.AI taught by Harrison Chase, its creator, along with Andrew Ng. Intrigued, I decided to research it further. Surprisingly, even ChatGPT did not know LangChain, as it is a