Category Archive: Tableau BI Certification

ETL and ETL Testing: The Concepts Explained

In this New Age, businesses pay maximum attention in collecting customer and transactional data. Businesses with draconian financial reporting and persistent audit requirements look up to ETL, as it offer an organized and integrated solution instead of relying on other apparent solutions like Hadoop.



ETL and ETL Testing: A Detailed Evaluation

 From Visually.

Battle the Blank Tableau Canvas Blues with These Nifty Tips

Battle the Blank Tableau Canvas Blues with These Nifty Tips

Do you experience vizzer’s block? Do you feel paralyzed by choices? Do you stare at the blank Tableau canvas, wondering from where to start your viz?




Though brimming with stories to tell, you are stuck at the get-go. Fortunately, here are a few tricks to help you get over the blank-canvas woes and get yourself rolling.

Draw your mind out

Doodling does help! Draw, doodle or sketch, just kick-start your cognitive thinking abilities. The scribbles don’t need to be pretty or legible, but they have to spur the creative process. So, grab a paper and pen, and start brainstorming.




And, you don’t have to go it alone. From academic researchers and lifestyle bloggers to professional visual consultants, the entire world is drawing.

Get inspired by ace visualizers

People inspire you, or they drain you – pick them wisely. Keep the right people by your side, they will lift you up and get the better out of you. Be in association with hotshot vizzes, follow maven data journalists and data vizzers, jot down notes and read data-viz pdfs.


 ALWAYS, keep your eyes open to stumble across fetching viz, whose idea might work out well for you!

For example, this visualization by Washington Post tells a gripping food-survey story.




Develop a formidable structure to understand the data better

Frazzled about starting your viz? If affirmative, then this checklist can save your day. It is segregated into two parts – data preparation and data exploration.

Taking the first one first, i.e. Data Preparation:


As boring as it sounds, physical inspection of your data sometimes helps you comprehend the data set’s possibilities and challenges. To draw a clearer picture, here are few things to look into a data set:


  • The kind of data in each field
  • The pattern of data structure and format
  • Fields covered and not covered by the data set
  • Highest and lowest values in each field
  • Are there fields that contain null values


If you follow the above example, you will find there are multiple levels of data infused in the food-survey data set – where some food items boasts of four sub-categories, while others has only two. Situations like this make it hard to establish a comparison between two food items unless you know that they are at their minimum sub-category.




Coming to the second one, Data Analysis:

Analyse a data set just like interviewing it. Whenever you feel like going blank by staring at a Tableau canvas, start grilling yourself about data. Do it in a traditional interview way and you are sorted.

  • What, how, who, why, when, and where – Evaluate each field and ponder how to apply these questions on each field.
  • Let your inner child smile, while you ask “Why? Why? Why?” to your data.


To pop colours on your blank-canvas, interviewing is indispensable.


Remember: Every end is a new beginning

What if my final viz fails to shed light upon the deepest cognizance? Or, how will I feel if my viz cannot do justice to my story. Don’t worry, pondering is common. Get up and hit the road. There are countless number of ways to address a viz and remember that once you finish a viz, it doesn’t mean an end. Remaking and telling stories in newer and innovative ways are something you can always look up to anytime.



Turn the volume up and focus

Crank up the music, boost productivity and tune out distractions! Music helps in focusing on work, by diminishing outside noise (phone buzzing, colleagues chatting, TV blasting). Irrespective of the kind of tunes you like, plug in your headphones and say goodbye to the world!




Recently, tableau bi training courses are gaining a lot of attention. If you are seeking comprehensive tableau certification Pune, scroll through DexLab Analytics.



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Can We Fight Discrimination With Better Machine Learning?

With the increase in use of machine learning, for taking important corporate as well as national operational decisions, it is important to set across some core social domains. They will work to make sure that these decisions are not biased with discrimination against certain categories whatever they may be applied into.

Can We Fight Discrimination With Better Machine Learning?

In this post, we will discuss the crucial matters of “threshold classifiers”, a part of some machine learning operations that is critical to the issues of discrimination. With a threshold classifier one can essentially make a yes/no decision, which in turn helps to put things in perspective with one category or the other. Here we will take a look at how these classifiers work, the ways in which they can potentially be biased and how one may be able to turn an unfair classifier into a much fairer one.


Big Data in Every Day Living

Big Data in Every Day Living


Business Intelligence combined with Big Data analytics is stimulating the progress of Enterprises across the globe, along with pulling whooping amount of investment within the Big Data community. The infographic given below on big data in shaping everyday lives elucidates people about how Big Data is making our lives better.


Improve Your Business Intelligence Strategy In Just Six Steps!

When Moore’s Law meets with modern day Business Intelligence, what happens? Disruption and then wider adoption!

Improve Your Business Intelligence Strategy In Just Six Steps!

With costs of implementing BI tools lowering, more and more enterprises are keen on jumping on-board the homebrewed variety of custom BI solution to help drive their business. The result of these efforts is that these days several organizations are pursuing data driven intelligent decision-making, at a cost, which is almost fractional compared to yesteryear’s Business Intelligence budgets.


5 Tips for Creating Different Map Styles in Tableau

Let us not waste any time on reading long-worded introductions, and get right down to our 5 top tips for creating different map styles in Tableau.

5 Tips for Creating Different Map Styles in Tableau

You will be able to find out about these tips and a lot more on Tableau with our Tableau training courses.


  1. Removing map layer:


A simple way to create a clean map for best visualization is by removing the map layers. In order to do this, all you need to do is Select Map on the toolbar menu and “map layer”. Then simply click on the uncheck box and everything in the map layer window, this will leave behind only the outline of the map data.


We Are Providing Corporate Trainings To Jones Lang Lasalle Pvt. Ltd.

We are happy to announce that we have recently begun our corporate training sessions for the multinational company Jones Lang LaSalle Pvt. Ltd. on Tableau Business Intelligence.

DexLab Analytics has started their Corporate Training sessions on Tableau BI for Jones Lang LaSalle Pvt. Ltd.

The company JLL are a professional service where they deal with investment management firm offering specialization in real estate services for clients seeking increase in value by owning, investing and occupying real estate. It is a Fortune 500 company and gathers annual revenue of USD 5.2 billion with gross revenue of USD 6.0 billion. They have more than 280 corporate offices and operate in 80 countries or more, their global work force is of 60,000. The firm provides management and real estate outsourcing services for realty portfolio for its clients. Their portfolios consists of 4.0 billion square feet which is 372 million square meters and have completed USD 138 billion in sales, financial transactions, and acquisitions on 2015.    


Now Easily Uncover Patterns in Your Data With Tableau 10’s Clustering Feature

Let us assume you have got sales data in your hands, wouldn’t it be absolutely grand to be able to recognize certain customer groups to be able to develop targeted marketing programs? It could also be that you are in healthcare and you’d love to identify patients who have had similar symptoms to determine the effectiveness of treatments.

Now Easily Uncover Patterns in Your Data With Tableau 10’s Clustering Feature

With complex data these questions can be very difficult to answer, even when people have distinct and well-separated groups. Additionally, sometimes data is distributed in such a way that it contains no obvious gaps which can help us distinguish between groups with simple inspection.


Are You Trying to Ace Your Tableau Interview?

If you are looking to be hired as Tableau expert then you must be acquainted with these common interview questions and answers. These questions have been collected by the experts at DexLab Analytics who offer Tableau BI Certification training at the institute. These questions are to give you an idea of the types of questions you may be asked at an interview. Happy job hunting!


What do you understand by Data Visualization?


Data visualization is a much advanced, precise and ordered way of viewing large volumes of data. It is the way one visually represents data into graphs, charts and other illustrative aids, especially when you cannot define them textually. Through the various software applications like Tableau one can show various trends, patterns, correlations etc.


Analysts’ Guide to Tableau Certification

Tableau helps data analysts to visually analyze your big data and is a great tool that helps to solve complex problems associated with data analytics. By data visualization we mean, describing information through visual rendering to gather immediate insight with the mind’s powerful and quick visual processing system.

Analysts’ Guide to Tableau Certification

To become a certified professional you must be a Qualified Associate in Tableau


Earlier Tableau used to offer certification for version 8 both Desktop and Server. But now Tableau has released version 9 certification exams. Thus, now you can no longer register for the version 8. If you are already certified in version 8 of Tableau and would now like to upgrade yourself, you can sit for the 9th version delta examination with the new features only.