Sherina Mahtani

Sherina graduated from the University of Nottingham with a degree in Business Management. She is a certified Tableau Data Analyst and has completed the Alteryx Core Certification. Currently, Sherina is pursuing her PowerBI Data Analyst license.

Before discovering her passion for data, Sherina founded two successful companies in Hong Kong. However, after studying Data Science and Machine Learning in Python, she rekindled her long-lost love for data analytics.

During her data analytics training, Sherina worked across the Marketing, Banking, and Technology consulting sectors, collaborating with diverse clients. This experience has equipped her with the ability to adapt to different industries, understand unique business challenges, and deliver tailored data solutions that drive value.

She possesses advanced knowledge of Tableau Desktop, Tableau Prep, and SQL, along with foundational expertise in PowerBI.

Sherina aims to leverage her creative and business acumen, combined with her analytical skills, to provide impactful data consultancy to clients across various sectors.

Certifications

Blog Posts

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Fri 31 Mar 2023 | Sherina Mahtani
Dashboard Week Day 5 - Sleep Analysis
For my last and final day in training and dashboard week, we had a sleep analysis experiment to analyze which had around 450 subjects from a dataset from Kaggle
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Thu 30 Mar 2023 | Sherina Mahtani
Dashboard Week - Day 4 (Diversity Analysis)
Today we were given the task or analysing Real World Fake Data Season 2 where our cohort was divided into 4 categories analysing either the financial overview, citizen service requests, emergency calls or diversity score card
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Wed 29 Mar 2023 | Sherina Mahtani
Dashboard Week - Day 3 (NBA)
I was actually quite excited to do a day in Power BI as I’ve been learning about it on Udemy and started getting the hang of it. However, the task was webscraping through Power BI which isn’t something I was taught or had learned
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Tue 28 Mar 2023 | Sherina Mahtani
Dashboard Week - Day 2 (The Cat Tracker)
Today my heart was racing so fast mainly because my time management skills were horrendous. Couldn't make a decision about anything and was going down many many 'cat' holes today. Today's task was using a dataset that tracks cats when theyre out of the house
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Thu 23 Mar 2023 | Sherina Mahtani
Fill Through in Tableau Prep
Before you start, you will not be able to do this procedure without a Record ID or Row ID (or some field that is an ordinal field that gives the dataset an order - e.g. Days of the Week, Number of Month, Year etc.) 1. Get rid of the nulls 2
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Wed 08 Mar 2023 | Sherina Mahtani
Data Cube - An introduction to the concept
In layman terms, a data cube refers to a multi-dimensional data structure - so, data within a data cube is shown by specific dimensional values
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Tue 07 Mar 2023 | Sherina Mahtani
Webscraping made easy?
Let's first start with understanding what webscraping is and when you are actually allowed to do it. Scraping a web page involves fetching it and extracting from it. The extraction of data from a website, simply put. However, it can be illegal
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Thu 09 Feb 2023 | Sherina Mahtani
Z Score - An overview with examples
What is Z score? In simple terms, Z score is the number of standard deviations the data point is away from the mean. If a z-score is equal to 0, it is on the mean. A positive z-score indicates the raw score is higher than the mean average
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Fri 03 Feb 2023 | Sherina Mahtani
My experience as Project Manager
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Tue 24 Jan 2023 | Sherina Mahtani
RegEx - An Introduction and Cheat Sheet
What is Regex? * Regular Expressions * a way to specify part of a string that matches something * a way to check if a string contains something Why Regex? * More versatile * Universal - available in Tableau & Alteryx * It is used for finding, removing or replacing parts of string
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Mon 23 Jan 2023 | Sherina Mahtani
Fixed LoDs - What are they? What are they good for? When do you use them?
LoDs, standing for Level of Detail are calculations that can help you control the level of granularity or simply put, the level of detail of your expression. You can calculate LoDs using measures or dimensions without having to reference them in your view
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Thu 05 Jan 2023 | Sherina Mahtani
How to use Set Actions to create a Bar Chart Drill Down
Starting Note: We will be using Sample Superstore for the example for this blog, feel free to open that up and follow along. The idea behind this is to use bar chart drill downs to act as a hierarchy
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Tue 03 Jan 2023 | Sherina Mahtani
Top Tips for Preparing for the Alteryx Core Certification
With 80 questions in 2 hours, there are various ways to prepare for this exam. Lets narrow it down, shall we? A little insight to the exam – it is an open book exam with a mixture of theoretical and practical questions
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Fri 16 Dec 2022 | Sherina Mahtani
What and why did I change my application dashboard?
After a full week of Tableau Time and learning about data visualization best practices, its made me view my initial application a lot differently
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Thu 15 Dec 2022 | Sherina Mahtani
Hierarchies - what is it all about?
When connecting your dataset into Tableau, it separates fields that are the date data types into hierarchies so you can easily break down your dashboard
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Wed 14 Dec 2022 | Sherina Mahtani
Dynamic Parameters - What are they? How do we use them?
What are Dynamic Parameters? Dynamic parameters can be strings, floats, integers, or dates, offering flexibility and interactivity when building a dashboard for your audience
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Mon 12 Dec 2022 | Sherina Mahtani
After my first Data Viz lesson, what would I have done differently in my application?
It may have been a very straightforward and logical lesson, yet somehow it's the small details that slip the mind
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