Introduction Today there is a CNN headline that gives some predictions about the 2013 hurricane season. Â Click here to read the story. Â This reminded me of the hurricane data that I worked on recently, using Tableau to investigate spatial and temporal trends over the past 40 years. If you want to examine the data for…
Introduction I work with a lot of site-specific data that typically does not have latitude and longitude information included. I am generally given an address, city, state and zip for the data location.  Although Tableau will automatically map this data  at the state, city, and zip levels using generated latitude and longitude, many times I…
A couple of weeks ago, I started capturing Twitter data that had the hashtag #Plantpower in the tweet. I wrote about the motivation for this in another blog post. This information is stored in a database that is automatically updated over time. This post is intended to help people learn how to use Tableau dashboards…
Today I was creating a scatter plot in Tableau using about 1.5 years of monthly data. Â All the data points looked like they correlated nicely except for the March 2013 data point. Â With March 2013 included in the trend line calculation, the scatter plot looked like this and the r-squared was 59.4%: If the outlier…
Rich Roll (and his wife Julie Piatt) have been the best teachers I’ve had in a very long time.  Rich is amazing and continues to deliver incredible content to many people through his podcasts, Twitter activities, website and his book Finding Ultra.
Today (8/8/13), CNN Money posted a story about Golfers and the “Major Money” they make by winning Major tournaments. Â Conceptually the visualization is very good but the execution is just OK (I can think of a few improvements). The biggest problem: the data is WRONG! Â Check it out for yourself by clicking here! Â They should…
The Term: The Cruise Effect. Definition: Gaining weight on a cruise ship is really easy. Losing that weight is not so easy. I would like to tell you about a two-month study that I just completed. The first month happened before I took a 5-day cruise from Charleston, S.C. to the Bahamas and back.
You can click here to see a Tableau dashboard that allows you to see who has been writing about Tableau on Twitter over time. Â The data embedded in this visualization has been captured using the Twitter API, and another post will be written about how that is done. Â You can search on any term you…
The Tableau website offers an enormous amount of valuable information to its users. Â The company Tableau has been very proactive in creating great training materials such as white papers, videos, articles, etc., and I’ve seen a continual buildup of this content over the past six years as a daily Tableau user. Â I really appreciate what…
I was curious to see how valuable the use of hashtags can be in performing some basic research. Â Two answer the question, I did a little study over the past couple of weeks. Â Over the past 12 days (7/20 to 7/31/13), I captured all the Twitter posts that had either #BigData or #Tableau in the…
Introduction The following work is circa October 2010, and at the time I was using Tableau version 5.2!
Are you a digital hoarder? Â I might be but I am committed to cleaning up my hard-drive! Â If you need to do some cleaning on your system, you can use Tableau to help you find the biggest offending files and to direct your clean-up activities. Â The reason for doing this is that you may be…
This post started with a simple picture from 7/11/1965 (48 years ago) that my sister posted to her Facebook page last week. Â This picture is shown below. In this photo, I’m shown sitting on the bottom step of my childhood house at 4700 West Race Ave in Chicago, IL.
Today I came across a nice tool called the TWB Auditor, by Andy Cotgreave (@acotgreave) of Tableau Software. Click here to learn about this tool.
In this simple example, I was developing some ideas on how to use concepts from statistical process control theory to evaluate the effectiveness of salesman over time.