Drill from Region to State Using Parameter Actions in Tableau

When the data goes high, you can go low; to misquote a common saying. In this video I’ll show you how to start at a region level on your Tableau map and then drill into the State.

If you’re using the Tableau Superstore data set, make sure the Region and State fields are assigned to a geographic role. Most likely you will need to change the Region to a geographic role, which is created from the State field.

At a high level we’ll have a dual axis based upon the latitude, with the top latitude displaying the regions and the bottom latitude displaying the state. When we layer them on top of each other, we begin to create the illusion of the drill.

We’ll use a parameter creatively named [Region Parameter] which contains all of the regions. From there we’ll create a calculated field named [_States to show] as follows:

If [Region]=[Region Parameter]
Then [State]

In order to institute the drill, we’ll create a worksheet parameter action that will change the value of the region parameter on user selection. This causes the clause (If [Region]=[Region Parameter]) to evaluate to TRUE which then causes the display to show the states for the selected region.

It sounds more complicated than it is, so just make sure to watch the video for understanding and clarity.

As a bonus, I’ll show you how to achieve this effect where the selected region does not cause the other regions to gray out. Notice on the second map how all the non selected regions do not lose emphasis; this is not the default effect. It’s the little “show-off” details like this that can up your Tableau game. You’re welcome!

You can thank me by watching, liking and subscribing:

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Do Great Things with Your Data

Anthony B. Smoak

How to Filter your Tableau Viz in Tooltip (Top 10 Values)

Visualizations in tooltips, affectionately know as “Viz in tooltip” is a handy feature available in Tableau that enables “details on demand” functionality. As the user hovers over a specific mark or data point, additional details are revealed that are filtered specifically for that mark from another worksheet.

In the example above, as the user hovers over a bar, they obtain additional details about the three most profitable products associated with the respective bar.

As I learned in a very informative Tableau presentation for tooltip wonks (myself included), the underlying architecture is built upon action commands and shares many commonalities with action filters. For viz in tooltip performance considerations, use smaller and fewer visualizations. Also try to avoid maps and other complex visualizations that have significant mark density.

If your tooltip responsiveness is greater than 2 seconds or the height and or width is greater than 600 pixels, then consider rethinking your approach. According to Tableau best practice, users are not willing to wait more than 2 seconds hovering over a mark for a reveal.

Since the viz in tool tip passes filters between worksheets, this means we can make use of context filters (click this link for a fantastic overview) to limit the number of marks returned and help improve performance.

This is the Section You are Here for

Context filters also help solve the problem of returning the Top N records associated with a mark. When you assign a viz in tooltip on your source sheet, a set filter is applied on the target (i.e., viz in tooltip) worksheet. If you’re a frequent watcher of my videos you know that the Tableau order of operations prevents the default set filter from returning a proper Top N.

By adding the set filter to the context on the Order of Operations skyscraper, the data is pre-filtered by your dimension first (e.g., State) and then the Top N filter is applied. When the set filter turns gray, you know it’s working.

Notice that the Context Filter box is above the Sets entry; which means that the Context filter is evaluated BEFORE the set. Make sure to watch the video to learn how to limit to the Top 10 cities based upon a hovered state.

Check out the video for details and may all your viz in tooltips be context appropriate!

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Do Great Things With Your Data

-Anthony B. Smoak

Create Tableau KPIs Quick and Easy (Profit vs Budget)

In this video you will learn a quick and easy approach to putting together KPIs that illustrate how profits perform in relation to a budget (i.e., targets vs actuals). Of course the KPIs will be interactive thanks to help from parameters.

Now the dashboard that I built around the KPIs will definitely form the basis of additional videos. There are several techniques here (filtering viz in tooltips, show/hide container, bar in bar chart, reset all filters button, etc.) that form the basis of a good intermediate level dashboard.

Inspiration comes in many forms. I have to give a shoutout to Keith Dykstra for offering his original dashboard for reverse engineering. The idea for the KPIs and bar in bar chart are inspired by Keith. I added additional elements such as the reset all filters button, filtering by states via treemap, parameters in lieu of hover over images.

Shoutout to the Kevin Flerlage for his great PowerPoint button workbook. I modified the on/off toggle button based upon a template from Kevin’s workbook.

Finally, I was watching an Oregon vs UCLA football game one Saturday and was impressed by Oregon’s latest uniform combination. I had to throw that grey and green combination together for use on the dashboard. Inspiration can come from many places! Here’s a little Oregon football and my “Saturday Night Lab” tweet.

Make sure you watch this video to learn and hopefully get inspired yourself!

If you’re interested in KPIs you can check out these other videos:

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Passing the Tableau Desktop Certified Associate Exam: My Journey

I’m Tableau certified and with some study time and focus, you can become Tableau certified as well.

As of this year, I can say that I, Anthony B. Smoak passed the Tableau Desktop Certified Associate exam. I already hold the Certified Business Professional (CBIP) designation which is product agnostic and a great certification for a data consultant and data blogger to showcase (apologies for the humblebrag). Read up on my experiences with that certification here.

Although my Tableau certification aim started as a mere whim, it morphed into a full time goal by the time 2020 rolled around. We all know 2020 has been a challenging year for most of us, I’ve tried to do my best to make it redeemable by continuing to learn and up-skill. And because you’re reading this post, my assumption is you are too! Great minds think alike.

Why did I want to pursue the Tableau Desktop Certified Associate certification?

  • I run a YouTube Channel and blog focused on data tools; Tableau content is the most salient feature of these passion projects. Becoming Tableau Certified helps convince you that I know what I’m talking about.
  • Clients respect credibility. I recently delivered a data visualization workshop at a well known Fortune 20 company and being certified as well being a Tableau Public Ambassador helped establish my bona fides.
  • The more you study, the more you learn. It was refreshing to brush up on some basic functionality and even learn some new intermediate tricks while prepping for the exam.
  • Just like you, I found myself with a bit more time in 2020 to start acting on neglected data goals. When the world shakes off 2020 (please make it stop) and starts getting back to normal, people will ask ‘How did you better yourself during the downtime’. My answer will be Tableau (and fostering a boxer puppy, but that is for another blog post).

As my exam time came about, I logged in to the testing website and my proctor had me share my license to prove that it was indeed me taking the test. I also had to show that my physical table (not in the Tableau context) was clear of any papers or other materials. Once that was clear it was off to the races. Although you will have 2 hours to complete the exam, make sure to account for at least 30 minutes of setup time before you actually start the test.

Of course I don’t remember exact questions and wouldn’t share any even if I did but I do recall thinking that I had a good handle on most of the material. There were only two questions where I was completely stumped and had to take a guess. The test is timed and by the time I finished answering every question, there was only about 10 minutes left to review my 36 answers.

For some of the more esoteric questions on product minutiae, Google is your friend. The test is mostly open internet which can be helpful on these small detail-like questions. But remember, you are balancing Google searching against test answering time.

I did not need to use Google during the hands-on assessment questions. You either need to confidently know how Tableau works or you’ll find yourself playing defense and guessing.

Fun Fact: the Firefox browser on the virtual machine only displayed search results in Japanese (ども ありがと) and it took me awhile to figure out how to set English as the default language.

In short, the test was by no means easy, but with time and adequate preparation you’ll be successful. I’d say a good 7-8 months of Tableau use and 3 to 4 weeks of study time should get you where you need to be.

To prepare for the test, take a look at the official Exam Guide.

However, here is the section you came for, my abridged list of test focus areas.

How to Get Started with Tableau

Using Tableau Public is the best way to get started learning Tableau if you don’t have a Desktop license. Download Tableau Public and practice at home because it’s free to use! The functionality is practically the same as Tableau Desktop, you just have to save your content to the cloud instead of locally.

Practice on this dataset. It is the default dataset (Tableau Superstore) that comes with the licensed version of Tableau, but you can download it from data.world thanks to Tableau Zen Master Ann Jackson.

Fast Track:

If you just want to jump right in to dash-boarding you can start with two video series I have in this playlist:

  • Build a Tableau Dashboard Parts 1-4
  • Tableau How to Build A Dashboard 
  • Tableau How to Format A Dashboard 

Slower Track to learn functionality:

Watch everything in the Creator section except Tableau Prep which is a separate tool.



Linkedin also has 4.5 hours of free Tableau training in a course here:


Visualization Techniques:

I took this course when I was first starting out. It’s a bit more academic with respect to visualization techniques but useful nonetheless.


Then after about 3 months take the Tableau Specialist Certification.


Once you’ve built up confidence after passing the Tableau Desktop Specialist Exam, keep practicing and then sit for the Tableau Desktop Certified Associate Exam.

Heed my advice and you will become Tableau Certified! Keep at it and one day you’ll be opening up Ambassador Swag from Tableau.

I’m rooting for you!

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

“Do Great Things with Your Data!”

Anthony B. Smoak

Photo by Andrea Piacquadio from Pexels

Understanding Tableau Context Filters

Context filters in Tableau are a big mystery right? In this video I will demonstrate two examples that will help shed some light on how context filters in Tableau work.

When I was starting to learn Tableau, I had no idea why I would ever need to add a filter to the context. It just didn’t make sense for me, because most of the time, the filter still operated in a manner I expected. Little did I know, I was moving a filter on up, to a deluxe apartment in the sky!

That is because I did not understand Tableau’s order of operations. This understanding is key. The higher the filter is on the official order of operations skyscraper, the more influence it has on all the other filters below it.

When two dimension filters are applied to a visual, they are working independently with access to all rows in the data source without regard to other filters. Eventually the filters decide what values they have in common (i.e., the intersection), and those values are shown on a visual.

But if you change your dimension filter to a context filter, you’ve ensured that any other filters that you set are defined as dependent filters because they process only the data that passes through the context filter.

This concept will be very handy when trying to compute the Top N values. Notice on the order of operations that Top N is located below context filters. That means that the Top N filter will only receive values that have been “pre-filtered” from the context filter.

What’s in it for You?

Per Tableau, use context filters to:

  • Improve performance – If you set a lot of filters or have a large data source, the queries can be slow. You can set one or more context filters to improve performance.
  • Create a dependent numerical or Top N filter – You can set a context filter to include only the data of interest, and then set a numerical or a top N filter.

To improve performance of context filters, especially on large data sources, follow these general rules.

  • Using a single context filter that significantly reduces the size of the data set is much better than applying many context filters.
  • In fact, if a filter does not reduce the size of the data set by one-tenth or more, it is actually worse to add it to the context because of the performance cost of computing the context.

Still scratching your head? It will all make sense after the video examples. Give it a watch!

Of course, check out the official documentation from Tableau where I sourced these tips.

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Do Great Things With Your Data

-Anthony B. Smoak

Photo by Andrea Piacquadio from Pexels

Tableau Dynamic Maps with Parameters: A COVID Dashboard Breakdown

Operation “Reverse Engineer” a Tableau Zen Master dashboard is back in full effect. You know the drill by now, I spent weekend hours analyzing an impressive dashboard put together by Tableau Zen Masters Anya A’Hearn, Tamas Foldi, Allan Walker, and Jonathan Drummey.

In this video I will demonstrate to you how they use parameters to dynamically change the measure that is displayed on both a map and bar chart. Accurate data is made possible through the use of a context filter to equalize the data that is displayed between the United States and all other countries (U.S. data lags by one day).

I should mention that we are using the carefully curated data offered at the Tableau’s COVID-19 Data Hub.

What’s in it for You?

You will learn a neat little trick that encapsulates multiple measures into one calculated field. By using two parameters we can update our visuals to display the correct measure based upon user selected options. This even applies to the size of our marks on a map. You have to love the dynamic nature of Tableau!

In order to understand how we work with the current Tableau COVID-19 data file, you should watch the first video as a prerequisite.

Also Make Sure to Watch this Additional Video Series

Make sure to also check out this extremely useful tutorial on building a COVID-19 Dashboard from scratch. It’s perfect for your first Tableau project with step by step instruction.

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Do Great Things With Your Data

-Anthony B. Smoak

Build Advanced Tableau KPIs: A COVID-19 Dashboard Breakdown

You want to build an advanced Zen Master level KPI BAN using Tableau’s latest COVID-19 data? Well you’re in luck as I spent a lot of weekend hours analyzing an impressive dashboard put together by Tableau Zen Masters Anya A’Hearn, Tamas Foldi, Allan Walker, and Jonathan Drummey.

Specifically I was intrigued how they put together the KPI BAN from the dashboard below that highlights either NEW or CUMULATIVE Positive cases and the percentage difference from the previous day.

Official Tableau COVID Tracker

The official Tableau COVID-19 tracker database can be found here.

In breaking down their approach I renamed some calculations to better help me organize and understand how they come together to create the KPI.

What’s in it for You?

From a learning standpoint, there is a good mix of parameters, filters, context filters and Level of Detail (LOD) calculations that work in concert to deliver the desired outcome.

In the video you’ll learn how I simplified some of the back-end aspects to be a tad more approachable for beginner to moderate Tableau learners. Of course if you want to see the whole dashboard in context with the original back-end naming conventions and layout you can go download the official workbook and deconstruct it for yourself.

It’s all about learning! I encourage you to make use of workbooks that others have shared for bettering yourself and appreciating skills that are at the next level. Of course, always cite your sources and inspirations!!

As always, If you find this type of instruction valuable make sure to subscribe to my Youtube channel.

Make Sure to Watch this Additional Video Series

Make sure to also check out this extremely useful tutorial on building a COVID-19 Dashboard from scratch. It’s perfect for your first Tableau project with step by step instruction.

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Do Great Things With Your Data

– Anthony B. Smoak

Learn the New Tableau Set Control (Workout Wednesday 2020 Week 20 Solution)

Tableau 2020.2 introduced a handy new feature called set control. According to Tableau:

“The set control allows users to dynamically change the members of a set using a familiar, quick filter-like interface. End users can change set membership with both a single and multi-select dropdown, and the set control automatically refreshes its domain so that the data stays fresh.”

As with all new features I had to figure out what this new capability entailed and how best to learn it. Luckily, the hardworking crew over at Workout Wednesday had the perfect challenge.

Sean Miller (@HipsterVizNinja) created a dashboard that enables the user to select a US state, which then adds that state to a set. Three proportional bar charts update at the top of the viz. A right side bar area displays all of the selected states and selecting a state will remove the state from the set, side bar and the map.

Observe the following gif from my solution:

WOW 2020 Wk 20 GIF

  1. Take a look at the challenge here.
  2. Attempt to re-create the dashboard.
  3. If you give up, (or after you complete your solution), take a look at how I approached the dashboard in this solution video, or take a look at the Tableau Public interactive version here.
  4. Don’t just recopy the steps from this solution and post a viz to LinkedIn and/or Tableau Public. You’re better than that, but if you do, make sure to definitely credit Sean Miller and optionally credit me if you used my approach.

Remember, this is just my approach, there are multiple ways to solve any problem.

This was the first Workout Wednesday challenge that I’ve ever done and I’m sure I’ll tackle a few more.

Do some great things with your data!

As always, If you find this type of instruction valuable make sure to subscribe to my Youtube channel.

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

Anthony B. Smoak

Build a Tableau COVID-19 Dashboard

I hope everyone is safe and staying indoors during this challenging time. Like most of you, I find myself with an abundance of weekend time to spend indoors. I’ve used some of this time crafting a dashboard series leveraging the outstanding COVID-19 data hub provided by Tableau.

I did not expect the series to be as popular as it turned out to be, but it is one of my most viewed lessons on YouTube!

Tableau COVID Dashboard GIF

In this set of videos you will learn how to use Tableau and the Johns Hopkins data set which tracks COVID-19 cases across the globe, to assemble a dashboard. The great part about this dashboard is that it can be put together without reliance on overly complex calculations or the need to be a graphic designer, and it looks amazing if I do say so myself.

This dashboard utilizes the Tableau pages functionality to enable animation; as dates change the dashboard updates to reflect the current number of confirmed cases and deaths at that point in time.

Another cool trick is the use of containers to swap visualizations on the same dashboard. I use this functionality to switch between a linear and logarithmic scale for confirmed cases and deaths. You will need at least Tableau 2019.2 to use the sheet swapping functionality.

The first video provides an overview of the Tableau data-set and touches upon the visualizations required to build out the dashboard.


By popular demand, the second video goes more in-depth on the formatting and color scheme of each of the visualizations.


In my opinion the best part of the series is the 3rd video. I spend a full 93 minutes demonstrating various topics on dashboard refinement.

  1. Eliminating the hard-coding and manual sorts using a level of detail calculated field
  2. Detailed formatting with containers (applicable to all dashboards)
  3. Tableau sheet swapping using containers
  4. Making a Tableau Data Connection


When you get through with the first three videos you can opt for bonus material that teaches you how to implement a “bar chart race” aspect to the countries.

Instead of the same countries remaining static, they will move up and down depending upon the number of cases or deaths associated with a particular date.

Tableau COVID Dashboard Pt4 Gif Proj

Learn the Tableau “bar chart race” effect in Part 4 here:



Feel free to interact with the original viz or the Bar Chart Race version on Tableau public:

As always, If you find this type of instruction valuable make sure to subscribe to my Youtube channel.

All views and opinions are solely my own and do NOT necessarily reflect those my employer.

How to Create a Dashboard in Tableau

I took the time to produce a dashboard series that would get a relatively new Tableau user up to speed in very little time. I put together the “Goldilocks” videos I wish I had when I was a novice; not too short but long enough to hammer the concepts home.

In the first video, I dive head first into constructing four basic charts that I believe every data user should know how to put together. You will watch me demonstrate how to put together the following charts:

Line Chart with Forecast

Tableau Dashboard Line Chart

The shaded area is a time series forecast predicting the number of orders for the year 2020.


Tableau Dashboard Map

Heat Map

Tableau Dashboard Heat Map

Bar Chart

Tableau Dashboard Bar Chart

In the second video, I’ll cover the layout and formatting of the dashboard, as well as adding a little interactivity. When the user hovers the cursor over the Line Chart, all of the other charts will update to reflect the number of orders represented since the selected month and year.

Full Dashboard

Tableau Dashboard

Watch Part 1 to Build the Component Charts

Watch Part 2 for Layout and Interactivity

What You need:

  • Either Tableau or Tableau Desktop
  • Data set: Tableau Superstore Data (can be found all over the internet with a simple Google search).

Do some great things with your data!

If you find this type of instruction valuable make sure to subscribe to my Youtube channel. All views and opinions are mine alone, independently researched and do not necessarily represent those of my employer.