A few weeks ago, I wrote about the wonderful world of graph theory and graph databases. In doing so, I touched briefly on some of the practical uses of graphs. I would like to expand on this by looking at a specific use case: recommendations. We...
The area chart is a combination between a line graph and a stacked bar chart. It shows relative proportions of totals or percentage relationships. By stacking the volume beneath the line, the chart shows the total of the fields as well as their relative size...
The Challenge Visualize movement from Date A to Date B with one dimension and two measures. More specifically, display how these measures interact with each other and affect the outcome or performance of the dimension over time. This problem was posed to me by one of...
Typical day-to-day analysis is focused on things that have happened in recent days, months or years. We seldom go far enough into the past to make us think about what to do with dates prior to “date zero” (normally, January 1, 1900). That is unless...
On election night every two years, major news organization compete for the best presentation of vote results. Data consumers are particularly drawn to red and blue colored maps. In recent years, there have been some impressive variations on mapping techniques, many of them aimed at...
On election night every two years, major news organization compete for the best presentation of vote results. Data consumers are particularly drawn to red and blue colored maps. In recent years, there have been some impressive variations on mapping techniques, many of them aimed at...
Tim Costello shares his Speaker Idol talk from SQL PASS Summit 2014. Speaker Idol is a speaking contest among 12 of the sharpest SQL minds in the industry. Whoever gives the best presentation wins. The prize is a speaking spot at next year's summit. "If you...
A dual-line chart (also referred to as a dual-axis chart) is an extension of the line chart with a notable exception: It allows for more than one measure to be represented with two different axis ranges. This is done by assigning the right and left sides...
If you follow Tableau blogs frequently, you have likely seen dashboards that have icon-based navigation elements. In this post, we’ll walk through how to take that a step further by creating buttons that will change color and text depending on the state of other selections...
The line chart is ideal for when you want to illustrate trends over time. To use the line chart, you must have a date field. In the below example (Figure 1), we are comparing the quarterly profit by SubRegion over the course of several years....
For those of us who cannot live without both the internet and NFL football, Sunday afternoons no longer involve staring at just one screen. The television is dedicated to the game, my phone is dedicated to fantasy football and my laptop is for Reddit game...
Does your organization use data to better inform its marketing? Have you heard the words “segmentation” or “micro-targeting” thrown around and don’t quite understand what it means? In the spirit of the World Series, I give you an example of customer segmentation using baseball. The goal...
The side-by-side circle view is a variant of the circle view. The side-by-side circle allows you to add more measures to be compared next to each other for a richer analysis. To examine the side-by-side circle view, let’s take a hypothetical retail company and use...
Blogging was impossible for me immediately following the 2014 Tableau Conference. I left Seattle on the Friday morning of conference week and spent the next day in Portland doing some consulting work. Notably, our client picked me up in a Tesla Model S (Tableau clients do...
Last time out, I created a very simple and straightforward dashboard based on my family’s finances up to this point in the year. You can find that original dashboard here. While I’m all about making things less complicated than they need to be, I thought it...
Next week, there is a little conference going on in the great city of San Francisco called Graph Connect. Graph Connect is the only conference of its kind. It’s a conference that focuses solely on the world of graph databases and applications, featuring the leading...
The circle view is another powerful visualization for comparative analysis. The example below in Figure 1 has quite a bit of information packed into a single visualization. First, you can see that we are examining the sales figures for each product category. Take a look at...
As a data geek, it’s hard not to be drawn in by a sport like Major League Baseball with such rich statistics readily available. I wasn’t very interested in the game until I discovered how simple it is to collect and analyze data on every...
Treemaps are a relatively new feature to Tableau, first appearing in version 8.0. They are very powerful visualizations, particularly for illustrating hierarchical (tree-structured) data and part-to-whole relationships. Because of their visual nature, treemapping is ideal for legibly showing hundreds or even thousands of items in...
It’s that time of year again. The days are getting shorter, the weather is getting cooler and the end of Daylight Savings Time is right around the corner. Essentially, for people like me, life is going to suck until summer comes back around. But, there...
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