Sachin Wijeratne
While studying towards a Bachelor of Psychology (Hons) at UNSW, Sachin enjoyed the statistical component of the course. This prompted him to search for opportunites in the data analytics industry, and he was attracted to The Data School by the creative potential of Tableau to visualise data in countless ways. In his free time, Sachin enjoys following a wide range of sports, including cricket, basketball, soccer and American football.
Reflecting on Data School Training
I am writing this blog on the last day of training at the Data School. It has been an action-packed 4 months, and it feels like only yesterday that we were introducing one another on the first day. This is the first full-time job I've ever had, and as such I was a...
Using New Spatial Calculations In Tableau
Tableau 2019.3 brought with it some improvements to spatial calculations. In this blog I want to focus on the makepoint, makeline and distance functions. To do this I will use a data set that details the various flight paths from Cincinnati airport. Here is a snapshot...
Selection vs Others Set Action in Tableau
Over the past four months, we've come across countless ways to visualise data. One method I have found particularly useful to draw insights is the selection vs others set action in Tableau. I discovered this method from our training on set actions, in a video by...
Dashboard Week Day 5 – US Museums and Population
Friday marked the final day of dashboard week, and our task was to create a dashboard using data from Enigma Public. The catch was that we had to present our dashboard at 3pm, so time management was going to be key. The dataset contained information about US museums,...
Dashboard Week Day 4 – Global Emigration Patterns
Yesterday marked day 4 of dashboard week, and our task was to create a visualisation using data from the World Bank. However, there was a catch - we couldn't use Alteryx. I chose the global bilateral migration dataset, which contains information about the number of...
Dashboard Week Day 3 – Power BI and the Titanic
Yesterday marked day 3 of dashboard week, and our challenge for the day was to create a dashboard about the tragedy of the Titanic in Power BI. We have only had a few sessions on Power BI, so I knew a large part of the task would be learning how Power BI works. The...
Dashboard Week Day 2 – Melbourne Cup Fever
Yesterday marked day 2 of dashboard week, and given it was Melbourne Cup day, it was hardly surprising to find out that our task was to create a Melbourne Cup themed dashboard. We were given the option to scrape our data from various websites that contained...
Dashboard Week Day 1 – NSW Traffic Volume Counts API
Yesterday marked the beginning of what promises to be a busy yet exciting week. I will be producing a dashboard everyday, along with a blog describing my process in creating it. For day one of dashboard week, we were tasked with using data from the Open Data website...
Dynamic Reference Lines And Parameter Actions
In my last blog, I showed you a few examples of using calculated fields to colour your Tableau dashboard. This time I'm going to illustrate how you can enhance this method by provided the end user with more flexibility. To do this, I will use dynamic reference lines...
Colouring with Calculated Fields in Tableau
When building a Tableau dashboard, the colour scheme is always a key consideration. We know that for discrete values, Tableau will assign a different colour to each member of the field. For continuous values, it will assign a continuous range of colour. Using...