Introduction About three months ago, I used Tableau to build a predictive model for my blog readership. Today I checked the accuracy of that predictive model. This short article shows the results of this fairly simplistic work.
Introduction Sorting data is fundamental technique and is a skill that anyone that frequently works with data needs to possess. I have sorted a lot of data through the years, for many different reasons. Sometimes the only way to get a job done when working with a wide variety of data sources that might include periodic data…
Introduction Writing a technical blog is challenging in many ways. Finding topics to include in your blog is just one of the challenges. This story helps elucidate this challenge from my perspective.
Introduction I have discovered a pdf file that I forgot about and it isn’t something that you can find using a Google search, until now, that is. I have re-discovered Mahdi Hantush’s lecture notes from 1959-1960 on the theory of groundwater motion. I believe I got this file when I was a student at the New…
Introduction I have been thinking a lot about how Alteryx and Tableau work together to help me innovate when solving business and science problems. In this article, I’m going to explain what I mean by the term innovation and how I use Alteryx and Tableau to achieve this term.
A New Vision This was a difficult article for me to write for a lot of reasons, but I am glad that I wrote it. In this two-part article, which will be my 99th and my 100th blog posts, I revisit my past and present a revised vision for my future as a technical blogger.
Introduction I had just hit the enter button to send the email. It was 12:21 am (just past midnight) and within five seconds the phone rang. My wife was lying in bed behind me, my phone was on the bedside table beside her and she says to me: “Who is that?”. Without any doubt of who…
This article includes a lot of tips for working with dates in Alteryx. The dates can be read from flat files but I also include some tips for reading dates from *.csv files.
Introduction I previously wrote about solving seemingly impossible problems with Alteryx. While writing the workflows for the challenging problem I described in that article, I discovered a few interesting aspects of how Alteryx handles leading zero fields and performs date conversions. Since these topics took me a bit of testing to understand, I thought that these insights…
Introduction I started using Alteryx in May, 2014, or less than six months ago. I have written a few blog posts for beginners and a recent post about a very impressive result I achieved using Alteryx. Now all of a sudden, the light has shined for me. I get it and I see the brilliance…
10/14/14 –
I do believe that Jay Cutler has all the skills, training and experience to be a very good NFL quarterback, possibly even an “elite” quarterback.
11/17/15 – Cutler has not thrown multiple interceptions in a contest this season, an eight-game stretch that is the longest of his 10-year NFL career. His passer ratings over the last six games have been 89.4, 88.4, 88.8, 94.4, 100.5 and 151.0.
Update 1/8/16
According to ESPN, Cutler jumped 6 spots from 2014 to 2015 in total QBR. Here is the article: Cutler improves Total QBR in 2015.
Introduction I previously wrote a blog post about strategies for reading flat-files (fixed-format, un-delimited ASCII files) to get the flat-file data ready for Tableau analysis. That post was written before I became an Alteryx user.
Introduction Why are businesses using analytics? Why do they want consultants to look at their data and tell them what to do in the future?
Introduction A few days ago, I published an example of of drawing a finite-element grid in Tableau. I thought that it would be just another post that would have very little readership.
Introduction What the heck is a high-volume Tableau user? Any person that uses Tableau a lot, like using Tableau every day, is a candidate for being a high-volume user.