[Click here to find all my Sankey Chart series]

One-minute mini tutorial

A project at work requires to create Sankey charts for various data sets. Yes, people just love Sankey charts. Unfortunately it's a rather complex chart to create from scratch.

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How much does it cost under the current Tableau licensing model?

The official pricing can be found at

https://www.tableau.com/pricing/teams-orgs

and

https://www.tableau.com/pricing/teams-orgs#online

We can use Tableau to calculate Tableau's cost, for both server based or online based options.

[Update] Check out my new approach which is described in this video.

https://www.youtube.com/watch?v=pGWKFCnMv-0&t=18s

This is a sequel to the first article on 3-way Venn Diagram. The purpose is to make labeling a bit more automatic/dynamic.

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Placing labels for each of the multiples is not much a problem. But, it's pretty hard to align them across all the multiples. For example, in this #WorkoutWednesday 35 project by Rajeev Pandey, the State labels are not aligned.

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Here you go with my new submission of #WorkoutWednesday 35 because I am a little fancied by the quad chart. I was intrigued by the design of Rajeev Pandey and derived a tiled map version from that.

Peter Karpov created quite a few interesting math graphs using Mathematica. One of them caught my attention because I think it can be done in Tableau: Polygon circumscribing from triangle to square to many equal-sided polygons.

Here I created it in tableau.

Tableau won't allow the aggregation count distinct or CountD() on a secondary data source. For example when we want to count the number of orders that are in a secondary data set, where each order may have multiple lines of records, we can't do it in a simple way.

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The purpose here is purely for the pleasure of visualizing this bipartite graph in Tableau, because of its mesmerizing optic effect, as well as for the little exercises of building the logic behind it.

I have been curious about the US Supreme Court #SCOTUS for a while. Especially, recently I got a chance to watch the movie RBG on Justice Ruth Bader Ginsburg. This made me become more interested in the subject.

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While researching on Mandelbrot Set fractals, I stumbled upon the Multiplication Circles. They are  times tables mapped on a circle. This video gives an excellent introduction to the subject, which inspired me to create it in Tableau.

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[Vote it up if you like it https://community.tableau.com/ideas/8813]

In my two recent posts, I described some practices on designing vizzes for phone view. All of these thoughts stem from the fact that phone plays a more and more important role as a media platform.

Currently phone is the de facto platform for viewing vizzes, especially for those public vizzes. Not surprising. However, it's not so easy to view vizzes on phone at all. Here is a little effort to make it a bit easier to view any viz on phone.

Phone is after all the primary computing device for everyone. It's so pervasive.

Although Tableau's mobile device layout options have been available for a while, I haven't found a satisfactory use case for them. A few tries are simple and yet far from being practical.

Brain Teaser has been an interesting way to exercise your Tableau skills in the Tableau Community Forum. I think it would be fun to bring it to the Twitter sphere.

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The latest #MakeoverMonday 2018 Week14 project is about world wine production. One of our Makeover Monday Data Camp members Yanning Wang created a simple dashboard for this week. I think that jump plot can make this dashboard a bit more interesting. So, here is the result.

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In ma previous post, Creating Jump Plot, we used Bézier function for drawing the curves. But Bézier curve is not the sole option.

Today, we would like to show you how to use the familiar Sine function and Triangular function for drawing those curves.

Introduction

Jump Plot is used in visualizing process measurement.

In my research regarding Bézier curve, I finally got a chance to have a closer look at Chris DeMartini's masterful vizzes. By taking apart his jump plots, I found something strange.

The other day, Rajeev Pandey asked me a question regarding the calculation in his dashboard privately. I didn't have time to look into it. Fortunately the gracious Simon Runc found that the issue was in data densification.

How to chart user growth? Sounds like a simple question. Yet I got asked a number of times on the topic. It may not be as straightforward as one might have thought. Seems no one is documenting it. So I decided to write it down.

Ups and downs are the simplest indicators of trends. They are so simple that they may entice people to look further into the data. Just want to emphasize they are simple but important to data visualization.

Chris Mc on Twitter is kind of amazed that a rather sophisticated graph like Julia Set can be generated using only 8 rows of data.

OMG EIGHT rows of data !!!! I've often thought of doing this, just never got around to trying.

The fractals are always fascinating. I am totally mesmerized by it. Inspired by Zen Master Noah Salvaterra's work, here I created the Julia set using Tableau alone for both generating all the data marks and visualizing them, without using external tools like Python or R.

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In examining a Mandelbrot Fractal viz created by Zen Master Noah Salvaterra, we found that the visualization is slow. Yes, it involves quite a bit of calculations. By applying simple optimizing techniques, we can accelerate the calculations significantly.

Happy Saint Valentine's Day! I am a bit old fashioned. Happy V-day sounds like celebrating a victory day.

The commute traffic is really light this morning. I guess that a significant number of people must be taking the day off to spend the day with their loved ones.

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When I worked on this Venn diagram chart, I wanted to make the size of the circles big enough so that they could overlap each other. However the default size card is very limited in size range.

I didn't have a metric to put into the Size card. So I just made up one.

A question came up in Tableau forum regarding 3-way Venn diagram. I designed a 4-way Venn diagram not so long ago. And thought this should be easy. But the reality is a bit more complex than I thought.

The difference is this one has to be dynamic. The structure is kind of fixed.

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Many years ago, a friend went to grad school to study computer science in the University of Minnesota. I asked him what his research topic was. He said: cellular automata. It sounded interesting as a term, especially "automata". Although he explained it, I didn't understand much.

[This is No.36 of series #TweakThursday]

Jade Le Van created a very interesting viz with viz-in-tooltip which is based on one of her earlier endeavors. Now one single French map replaced those small multiples. Much more compact than before.

I have been thinking of creating a US tiled map template for anyone to use as they please. Saved it in my Google Sheet. Here it is the link. Any one can add this to his/her tableau as a Google-Sheet data source. Then go on to create his/her own US geo dashboards.

Bump Chart is used to display the evolution of ranking changes along time. Sometimes it is also used to compare ranks in a category across dimension members.

And it's usually horizontal along time. The chart can be very wide.

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Click image to see interactive version.

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