Feeding the screen-time beast with shifting mobile metrics

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Google “Tableau Mobile Dashboard” and the top images are still from the fabulous Kelly Martin. That is a post from 2015. Its about time for some new fabulous!

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There are a lot of helpful hints on modifying desktop dashboards into mobile ones. They tend to focus on altering the layout to be tall and being mindful of finger-based interactions. I feel they forget one critical aspect - users don’t actually want to look at dashboards on a mobile device. Now with that blasphemous statement out of the way, let’s get on to what users on mobile do want, an analytics app that serves up relevant content that is engaging, useful, and quick to digest on the go.

I seem to be in a mood about making the traditional KPI dashboard a bit more modern as well as increase the value to the end user by aiding the understanding of what is critical. If you haven’t already checked out the post on lighting, please do. It focused on lighting effects to draw the users eye to what is critical based on the impact of a KPI’s deviation from a target. In this post, we play with a KPI’s position on a “mobile app” as another method to assist the user in focusing on what is important now!

Automobile dashboards have evolved to focus on presenting and highlighting relevant information as opposed to a 100% fixed view. In my car, a 2014 Nissan Rogue, there is a small screen right in front of me that mostly just shows me how many miles I have left to drive before needing to get gas. However, if more useful information becomes relevant, a new view appears.  For example, if I am using the navigation option, the screen changes to show the next instruction on the route.  Or, if a tire suddenly has low pressure, a screen would appear to warn me of this and show graphically which tire was low.  Thankfully, I don’t have to search for this information because I am driving and should be focused on the road. It just appears because it is what is most relevant at that time.  I want my business data on my mobile phone to work the same way.

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In a typical KPI dashboard, we see metrics lined up with an indicator of if they are up or down vs. target. Again, there is no easily discernible way to tell how that deviation is more or less critical to the deviation of the other KPI’s and therefore the one that should be paid attention to immediately.

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We could add color to each KPI block to denote the impact of the KPI’s deviation drawing the eye to the Staff on Calls and the Dropped Calls:

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But the user is still presented with the KPI’s in their same position, with the user reading left to right even though the most critical deviation in this case is on the far right.

In the typical “just make it tall” mobile mindset, this might translate to a layout like one of the below:

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What if instead, our Call Center Mobile App just showed me what was most important at the time just like my car did? Again using our criticality weight from the lighting post, we can rank the metric that is most critical as the one to look at and make that the focal point. Each time you open or glance at the screen you are instantly able to interpret if there is anything that needs attention.

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I chose to use Rank_Unique so there would be no ties for the mail screen focus, but of course, you could add additional weights to your criticality score, or create a layout that would allow for more that one critical metric to be the main focus at the same time. Interactivity could also be added to allow the users to pop-out one of the other metrics to see its timeline and details by clicking on it as per the below. There are so many options!

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For the colors, I could have used the metric based background from my Ambient Widgets post, but chose to go an easier route for this example, instead just swapping out one of 3 background images based on the Max critical score at the current time.

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Enjoy and have a think about the apps you use on your phone and why you like to use them. What makes them so addictive? Can we add those addictive elements to our dashboard design to drive engagement? Or perhaps the less evil route is is to make them more effective so we don’t need to feed the screen-time beast while still providing needed value and information? Stay tuned!

Dashboard Drama - From Flat to Fabulous!

Dashboard Drama - From Flat to Fabulous!

If we consider ourselves storytellers of data, then we should always strive to make those stories more engaging. Taking a cue from movies, photography, and stage, lighting can draw attention to the most critical components of a story. Directing focus is often relegated to minor visual cues such as a dot at the end of a sparkline, or an up and down arrow colored by good vs bad.  Instead of being adornment that distracts from the story, this use of “white space”, focuses attention. We hope this lighting technique adds an enhanced user experience by conveying the drama of a KPI’s deviation from the target’s impact on your organization.

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"Off the Grid" - building Lo-Fi dashboards to create use and value

"Off the Grid" - building  Lo-Fi dashboards to create use and value

I recently had the opportunity to help organize and present at the first Tableau “Kenya Day for Data”.  In addition to great talks from powerhouses organizations like the World Food Progamme, and PATH, I ran a hands-on workshop on “How to Build Dashboards of Use and Value”.  What was unusual about the workshop is that it took place entire using flip boards, stickies, and markers, instead of in Tableau.  Without a pixel being pushed by the participants, they were able to walk away ready to build effective and powerful data tools. 

Here is the nitty gritty so you can hold a similar workshop at your local TUG, or office.

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Extensions for Tableau

Extensions for Tableau

As you probably already know if you have followed some of my content over the past couple of years, I am pretty excited about the release of the Extensions API for Tableau. This blog is an overdue follow up from #TC18, where Tamás Földi and I presented on Extensions, demoing a number of extensions covering both advanced visualization types and capabilities (like write back). This post provides some of my own perspectives on Extensions in Tableau as well as the content presented during TC18, along with some new stuff.

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Small Multiple Flows in Tableau

Small Multiple Flows in Tableau

Small Multiple Flows live up to their name, combining small multiples and flow elements in a single viz. This allows us to combine a set of events, providing an intense data visualization about these events, while also connecting one event to the next via the flow element. This technique does need a viewer to invest some time into understanding the various pieces of the visual. There is a lot going on, thus it will definitely require effort and a little time on the viewer’s part (and why I put detailed legends on both visualizations).

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Layering data for custom Tableau visualizations

Layering data for custom Tableau visualizations

This post outlines a method that has been shared before in the Tableau community. I was initially introduced to it by Noah Salvaterra’s Chord Diagram a while back. 

I am going to walk you through a layering technique, which allows use, and re-use of a single axis in Tableau. This can be done at different levels of granularity, different fields entirely or completely synchronized throughout, thus it can adapt pretty well to various use cases. Need to create a dual-axis in a single axis? This technique can enable this for us (as long as you need the same mark type that is). 

So What? With this technique you can build more detailed and very customized visualizations directly within Tableau (without the need for extensive data prep).

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More options for your Tableau Sankey Diagram

More options for your Tableau Sankey Diagram

A quick look around Tableau Public can often lead you to a Sankey diagram at some point. I can only speak from my experience, but the majority of these visuals (including mine thus far) leverage the sigmoid function. This technique has been posted about and presented on (including by me) quite a few times across the Tableau community, I first found it on Jeff Shaffer’s Blog and this has of course morphed many times and ways, for example, some of the great work done by Olivier Catherin to build a Sankey leveraging polygons (also found on Jeff’s Blog).

Not so recently, Tableau came out with some improved dashboard spacing capabilities in version 10.4. I had been awaiting this feature for a while and could not wait to update some of my Tableau Public work in order to take advantage of it (granted it took me a while to do so). Now we can get rid of those annoying spaces which have been forced into our (tiled) visuals to date.

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Talk to your Tableau Dashboard

Talk to your Tableau Dashboard

Shouldn't an author be able to explain their Tableau Dashboard to every person who views it? Of course they should! This capability should be available to authors and accessible to their end users, regardless of the end user's abilities. We should also make Tableau's awesome interactive capabilities as accessible as we can as web users have vastly diverse abilities.

We noodled around some ideas of how we could enable the Tabitha project for those who did not want to write any code. This blog is the (hopefully) first step toward that effort…

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Easy as Pie React + D3 Chord Diagrams in Tableau

Easy as Pie React + D3 Chord Diagrams in Tableau

… We are going to be integrating with and leveraging Nivo, which is self described by Raphaël Benitte (it's creator) as “supercharged React components to easily build dataviz apps, it's built on top of d3.” Nivo is one of many react component libraries that work on top of D3, each are different and bring their own features and focus to their projects. Here are a few more worth checking out (in no particular order):

I am going to assume you know how to leverage create-react-app and npm install to get up and running locally and import all the component libraries you will need. If you have not gone through this install process yet Chris’ blog walks you through some key steps you will need to complete, and Google is of course your best friend here. Here are the commands to run:

  • Create-react-app nivo_int

  • Cd nivo_int

  • Npm install tableau-api

  • Npm install nivo

That is it, if you run npm start at this point, your project will be bundled and rendered locally on your machine... Magic!

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Visualizing MLB pitch location data with Alteryx + Tableau

Visualizing MLB pitch location data with Alteryx + Tableau

This project started with some really interesting reading on the work done by brooks baseball (Dan Brooks and several others) and fastballs (by Mike Fast) sites. There are references to these sites throughout this post. 

Data gathering & preparation work

I used the Perl script from the fastballs - build a pitch db page to download the data from this MLBAM site. Then I leveraged Alteryx to parse the 2.47 million XML files (no, that is not a typo) over the 8 years I pulled data for. Here is a summary of files and their combined size by year.

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Where's DataBlick at #data17?

Where's DataBlick at #data17?

We're saddened and outraged by the tragedy in Las Vegas and offer our sympathies to those affected. And we are determined to help make the Tableau Conference a place of connection, community, and support for the attendees and those who were affected. Please check the #data17donates hashtag for how you can help out yourself, the Tableau community is already responding!

We've got a smaller crew than usual at #data17—it might be hard to believe, but babies and little ones can be even more fun than the Tableau Conference. No matter what, though, we're going to rock some new tee shirts, here's a sneak preview:

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Lighting as an attentive attribute in KPI dashboards

Lighting as an attentive attribute in KPI dashboards

I have been mulling over his technique of using broadly applied atmospheric washes of paint to draw focus and create intensity, and how to apply it to data visualization.  We usually use the attentive attributes of color, size, shape, position, etc. to draw focus in dashboards.  

I have been spending a lot of time pondering the UX of things not related to data viz and asking how to apply those design ideas to visualization work, as with my widget post.  Outside the sphere of data viz, in everything from photography, to video games, and interior design, lighting is a powerful way to draw focus and create emotion.  I wanted a Marks card with a "Lighting" shelf.

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Dataviz Fun for #Datakids

Dataviz Fun for #Datakids

As we all get ready for back to school (or are already back in school), whether it be Kindergarten or 8th grade its always fun to get vizzing and to get your kids involved!

Recently, the one and only Anya A’Hearn posted her inspiring quantified self project “Consumed”. My daughters are quite young, in the womb, 3 and almost 6. The thought I had was to have them build this type of viz with something they have way more of than they need. For us, an easy candidate for this was their (ridiculous) stuffed animal collection.

Since the kids are so young, having them document this in Excel and then create a Tableau viz wasn’t really going to happen (yet I made sure it did), so we embarked to create our dataviz on the floor of their room. First things first, we took all of the stuffed animals and tossed the into a one big pile…

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Step lines and supported bars in Tableau

Step lines and supported bars in Tableau

Step Lines

I am a big fan of step lines (here is a good example from datasketch.es) so I was really excited to see that line type announced at last year’s Devs on Stage. While we wait for that feature to be provided directly within the product, we have two choices: (1) don’t use them, or (2) build them ourselves. Choice two is much more the DataBlick way, so I have tried to provide you with a few steps that you can follow to build this chart type yourself. You can also take a look at Tim Ngwena’s post here which details another method that you can look into for your use case.

Step lines are just lines at the end of the day. When I started looking into how to plot their points accordingly, the prep work reminded me quite a bit of the data prep needed for Jump Plot. We basically need to take our list of points and add an additional mark for each point, and potentially one at the origin (0,0) if that is desired for our viz (as it was in this case). I will be using step lines to help analyze the scoring to par across PGA tournaments this year.

Here is a small sample of the data we will be working with going forward, this is an aggregated data set, looking at the average score to par for pros on the PGA tour this year. We are going to plot “hole” on the x-axis and “Avg Score” on the y-axis to make our viz.

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Weighted Medians for Weighted Data in Tableau

Weighted Medians for Weighted Data in Tableau

There are two ways weighted medians get talked about in Tableau: The first type of weighted median is the one we covered in our earlier Padawan Dojo: Weighted Averages and Weighted Medians post where we’re aggregating a data set and we want to make sure the median is computed over the underlying records. This post is about the second type of weighted median when the data itself has a weight, for example in survey data where each respondent has an assigned weight and we want to find the weighted median value of responses.

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Padawan Dojo: Weighted Averages and Medians in Tableau

Padawan Dojo: Weighted Averages and Medians in Tableau

This is the first of two posts on weighted averages and medians, this one introduces a problem we've seen multiple times where reference lines aren't properly weighted. We need to use a different set of options in Tableau to get the desired results and are helped by an understanding of the different levels of detail that Tableau uses to aggregate measures.

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4th and 5th Grade Girls Help #VisualizeNoMalaria

4th and 5th Grade Girls Help #VisualizeNoMalaria

Over the last couple of months, I was fortunate to have the opportunity to meet with the 4th and 5th Grade Girls Club at a San Francisco school and get them excited about all things data visualization and mapping. In a couple lunches and after school workshops we learned about cartography, map construction, and design, built our own outrageously fun custom maps of San Francisco using Mapbox, and finally contributed to the #VisualizeNoMalaria project by tracing buildings for Humanitarian OpenStreetMap.  My presentation for all the lessons, as well as the instructions for the building tracing are below.   My hope is to help data viz and map practitioners to get involved with children in their local schools to inspire the #DataKids of tomorrow.  Get Mapping!

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Consumed - A study of consumptive malaise

Consumed - A study of consumptive malaise

I think of this viz as a dystopian Harold and the Purple Crayon.  Harold had the power to create a world by simply drawing it.  In this viz, my consumptive malaise draws the world around me.  By sifting through the pile, I discover meaning and conflict in the mountain of banal objects that I interact with daily, and ponder why I use so many things.

The idea was simple - to log every “thing” that I used throughout the course of the day and visualize the “pile”.  Then, categorize and group all the things and see what story they tell.

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To Animate or Not To Animate

To Animate or Not To Animate

Context

Previously I wrote this post around analyzing the predictions generated by 538 during March Madness each year. At the end of the post, I briefly discuss the possibility of telling the same story using animation in place of vertically scrolling through a static set of charts. I believe that, if used correctly, the ability to animate from one chart to the next can greatly assist the reader in understanding your analysis process. 

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