Elnisa Marques

Elnisa Marques

Elnisa Marques

Elnisa is originally from a small island called Madeira in Portugal, but moved to the UK in 2005 to continue her career in dentistry. After years in the industry she decided that she wanted to do more and started a Master’s in Public Health, while studying she discovered a love for data and data analysis. Elnisa started using Tableau and became fascinated to see how easy it was to draw insights from the data and how visual this could be. She’s even used Tableau on her Master’s assignments to help tell the story behind the numbers.

The opportunity to join data school was something that she could not miss. Elnisa is currently learning more about data visualization and is keen to apply all the knowledge acquired in DS3 into healthcare strategy and several other areas.

Outside of work, Elnisa loves travelling, Japanese culture and going to the theatre, she’s also known to have one too many handbags.

Residual Plots in Tableau – why are they so important?

Sometimes when using a Linear Regression to analyse our data, we may think that the model we are using is the best fit for our data because the p-value is significant (p-value< 0.05) and the r-square value is close to 1 (R² is high), however this may not always be the...

Friday Tip – Tableau

Ways to connect Tableau to Data Source When starting with Tableau Desktop the first step is to connect to the data we want to explore. There are two ways through which we can quickly connect Tableau to the data present in our local directory or network. Method 1: Just...

Tableau – User Filter at Row Level

When working on a project, one of the questions I had to answer was: “Is it possible to set up a dashboard such that users can only see filter options they have permission for? E.g. only show suppliers data for their own brands.”                                      ...

Tableau Percentile Quick Table Calculation

With a quick table calculation, we can in Tableau compute percentiles for a set of values. When to use Percentile Calculation? When we are interested in comparing how an employee or company stands when compared to the rest of companies/ employees in the field; to be...

Four Different ways to remove duplicate records in Alteryx

Unique Tool – a straight forward method where we just have to select the columns to be unique Summarize Tool – by grouping the data, so we can remove the duplicates Tile Tool – by creating a sequence and then filtering the data Multi-Row Formula Tool – by ranking the...

Alteryx Tips & Tricks

I - Opening files: Drag files from Windows Explorer directly onto your canvas: Workflow files (*.yxmd, *.yxwz, *.yxmc) opens directly in a new tab on the workflow canvas. Data files will be represented by an Input tool for each data file on the workflow. II - Keyboard...

Waterfall Charts in Tableau

Waterfall Charts also known as Flying bricks charts, Mario Chart or Bridge Charts in the finance world, are a form of visualisation that helps us understand the cumulative effect of sequentially introduced positive or negative values. In other words, useful when we...

Using tiled containers to create lines that separate views

This week I will share with you all, a really cool tip that Phil Lowe has taught me when I was preparing my Design Dashboard webinar presentation. One of the areas covered by the webinar, was the layout containers. These are one of the most important aspects of...

Makeover Monday Live – the one-hour challenge!

This week is the week that everyone has been waiting for, the Tableau Conference in the UK week. For this Tableau Conference Andy Kriebel and Andy Cotgreave, the renowned Makeover Monday duo, decided to do the challenge live in-site and via periscope. As part of our...

Calendar in Tableau – My first visualization

Today I'm going back to my first Tableau Public viz, that’s right the very first one. For this project in Tableau Public I wanted to combine two things that I truly love, the Japanese culture and the use of Tableau, reason why my first ever visualization was an...

Learning by teaching – DateAdd & DateDiff

One of the challenges presented to DS3 this week, was for each data schooler to learn a Tableau calculation and teach it to the colleagues in the end of the week. The calculations were proposed by Emma but randomly distributed between us. I was the lucky number 5 and...