Afnan Foyez

Afnan embarked on a new journey in the field of data analytics after completing a comprehensive cloud computing bootcamp. It was during this time that he discovered the data school and delved into the world of Tableau.
His passion for technology and design seamlessly intertwined with his work on dashboards, capturing his interest and dedication.

Throughout his journey, Afnan recognized the profound impact of data in everyday life, realizing its prevalence and its ability to impact the quality of people's lives through insightful analysis. Motivated by this realization, he became deeply intrigued by the transformative power of data to facilitate understanding and drive positive change.

When not immersed in the meticulous process of data cleansing or constructing visually captivating dashboards, Afnan finds solace in cycling, embracing the beauty of nature, and actively pursuing his interest in learning the Arabic language.

Certifications

Blog Posts

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Mon 02 Oct 2023 | Afnan Foyez
Brief Overview of SQL Data Types
Data types determine how information is stored, managed, and retrieved. They play a vital role in ensuring data accuracy, integrity, and efficiency
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Sat 30 Sep 2023 | Afnan Foyez
NYC Cafeteria Inspections: Dashboard Week Day 5
The final day of Dashboard Week has arrived, marking the end of an enriching training journey for us at DSNY4. It was a day tinted with somberness, beginning with a relentless downpour that brought public transportation in NYC to a halt
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Wed 27 Sep 2023 | Afnan Foyez
Rick and Morty API: Dashboard Week Day 3
Today we were given the task to use the Rick and Morty API in order to retrieve data and create a dashboard. The API seems to be well documented, once I noticed this I went straight to Postman and started make calls to the API to see what kind of data it would return
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Tue 26 Sep 2023 | Afnan Foyez
Slovakian Youth Survey: Dashboard Week Day 2
Today we were tasked with survey data from Kaggle. The data consists of questions and their respective responses from Slovakians, aged between 15-30. Topics are wide in rage covering religion, interests, phobias etc. The dataset needed very little prep
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Thu 28 Sep 2023 | Afnan Foyez
Bundesliga Web Scraping: Dashboard Week Day 1
And so, Day One of Dashboard Week began, a journey into the unknown. We were aware of the daunting task at hand - to produce both a dashboard and a blog post every day. However, what we didn't know was the nature of the datasets we'd be working with, or if they would require extensive preparation
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Wed 13 Sep 2023 | Afnan Foyez
The Power of Dashboard Wireframes
  A dashboard wireframe is a visual representation or sketch of how you intend to design a dashboard, usually made at an early stage of the dashboard creating process
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Fri 08 Sep 2023 | Afnan Foyez
Date Time Functions In Tableau Explained
Date and time are crucial aspects of data analysis in Tableau. They allow us to visualize time-related data effectively. In this blog post, we'll explore some of the most essential date and time functions Tableau has to offer, along with real-world examples of how to use them
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Wed 16 Aug 2023 | Afnan Foyez
Creating a Fixed Axis Comet Chart
What is a comet chart? A comet chart, also known as baseball bat chart, is a type of visualization that can be used to show change or difference. Although it is similar to a barbell chart, a comet chart can be read more intuitively because of its shape
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Tue 01 Aug 2023 | Afnan Foyez
Introduction to the world of REGEX
What is Regex? Regex is short for Regular Expressions, it is a powerful and standardized pattern matching language which is used to search manipulate and validate text. It is the brain child of Stephen Kleene, an American mathematician
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Tue 25 Jul 2023 | Afnan Foyez
Create Your Own Pixel Map to Use in Tableau
In this blog, we will explore how you can create a pixel map which we can use in Tableau. Step 1: Start by navigating to the website called "https://pixelmap.amcharts.com/". Next, customize the settings of your pixel map as per your preference
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Mon 24 Jul 2023 | Afnan Foyez
Databases, Data Lakes and Data Warehouses: What is the difference?
Database: An organized collection of data structured to optimize the creation, querying, and storage of electronic information. It serves as a repository for various data types, allowing efficient data retrieval and manipulation
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Sun 02 Jul 2023 | Afnan Foyez
Using a Parameter Filter to Aggregate Dates in Tableau
In Tableau you can use parameter filters to aggregate dates, in this blog we will explore how. We will use the superstore data set and create a simple line chart showing sales across time
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Sat 22 Jul 2023 | Afnan Foyez
Relational Databases: Normalized vs Denormalized Data
What does it mean when data is normalized or denormalized? Let's break down the difference using an example of a simple database for a fictional store
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Fri 30 Jun 2023 | Afnan Foyez
LODs
What Are LODs? LODs, or Level of Detail expressions, are a powerful capability within Tableau that allow you to perform calculations at different levels of detail in your data; regardless of which dimensions are within your view
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Wed 05 Jul 2023 | Afnan Foyez
Interactivity: Using Parameter Actions to Highlight Selected Fields in Tableau
In Tableau you can set up parameter actions in order to highlight fields selected by the user. In this blog we will cover the steps required to do so. Step 1: Create the chart that you want to highlight
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Wed 28 Jun 2023 | Afnan Foyez
The Design Element of a Business Dashboard
Creating an effective business dashboard requires careful consideration and attention to detail. Unlike personal project dashboards meant for public display on Tableau Public for example, a business dashboard is tailored to a specific audience and serves a distinct purpose
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Sun 25 Jun 2023 | Afnan Foyez
Taking the Alteryx Designer Core Exam?
I am writing this to document my experience preparing for and taking the Alteryx Designer Core exam as someone without any prior experience with Alteryx. I hope that you, the reader, might benefit from it
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Thu 22 Jun 2023 | Afnan Foyez
The Summarize Tool
In summary, the Summarize tool in Alteryx is used to aggregate and summarize data based on specified grouping criteria. It allows you to perform calculations and generate a summary for different groupings within a dataset
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Wed 14 Jun 2023 | Afnan Foyez
How to swap sheets on a dashboard using parameters
For this example we will create two different sheets, a map and a bar chart. We will be swapping in between these two sheets. Step 1: Once we have our 2 sheets we need to create a parameter and create a calculated field that has just the parameter within it, it should look like this
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Tue 13 Jun 2023 | Afnan Foyez
How to add GIFs in your Tableau Server project folder
Step 1: First find a gif that you like
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Wed 07 Jun 2023 | Afnan Foyez
From Ancient Charts to Interactive Dashboards: Exploring the Journey of Data Visualization
Before the world of data visualization, it was commonplace for information to be stored and analyzed solely through tables and columns; lacking the visual representations that provide a more intuitive understanding of data
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