Blog

June 18, 2026 12 min read

Interactive Masterclass: Advanced Data Manipulation with Pandas & Seaborn

We are excited to share the materials for our data engineering and exploratory data analysis (EDA) session: Advanced Data Manipulation & EDA with Pandas: Preprocessing for Machine Learning. This session serves as the critical bridge from raw data …
June 18, 2026 15 min read

Interactive Masterclass: Introduction to Machine Learning & Modelling Techniques

We are excited to share the materials for our interactive conceptual masterclass: Introduction to Machine Learning & Modelling Techniques (Supervised, Unsupervised & Reinforcement Learning). This session was designed specifically for …
September 19, 2025 3 min read

Data's Grand Tour: Navigating the Modern Data Architecture Maze

We’re excited to share the complete materials from our session at Flo 2025: Data’s Grand Tour — Navigating the Modern Data Architecture Maze. This 45-minute presentation covers the full landscape of modern data architectures, from …
January 15, 2025 7 min read

From Pandas to Polars: A Paradigm Shift in DataFrame Processing

Welcome to the first installment of our Polars blog series! If you’ve spent years mastering Pandas and are curious about what makes Polars the talk of the data community, this post is your gateway. We’ll explore the fundamental …
April 18, 2024 3 min read

Advanced Pandas GroupBy and Window Functions for Data Engineering and Analytics

Session Outline: Advanced GroupBy and Window Functions in Pandas 1. Introduction to GroupBy and Its Role in Data Engineering (5 minutes) Overview: Recap of GroupBy as a split-apply-combine paradigm, as defined by Wes McKinney in Python for Data …
November 1, 2020 2 min read

Time Intelligence in PowerBI

Data Analysis Expressions (DAX) includes time-intelligence functions that enable you to manipulate data using time periods, including days, months, quarters, and years, and then build and compare calculations over those periods. Data Model The date …
April 26, 2020 1 min read

Handle multiple datetime formats representation using lubridate

Handling Heterogeneous datetime formats We`ll be using parse_date_time function of lubridate package. Multple datetime formats can be passed under orders attribute of the above function as shown below - library(lubridate) dates <- c( …
April 24, 2020 2 min read

Download Data from a github folder using httr package in R

Import Libraries and Request to the master branch of git The following chunk of code, import required libraries and request the master branch of the required git repository. library(httr) library(tidyverse) req <- …
December 1, 2019 1 min read

Hackerrank SQL - Aggregation

Following problems are discussed here. To solve the same, please visit hackerrank website{:target="_blank"}. Weather Observation Station 17 Weather Observation Station 18 Weather Observation Station 19 Weather Observation Station 20 …
December 1, 2019 2 min read

Hackerrank SQL - Advanced Select

Following problems are discussed here. To solve the same, please visit hackerrank website{:target="_blank"}. New Companies Binary Tree Nodes Occupations The PADS Type of Triangle New Companies select company.company_code, company.founder, …