The 1st workbook walks you through building a standard Waterfall chart in Tableau. Waterfall charts are intended to show you how cash balances change over time based on transactions that either add to or subtract from the cash account of a business. As this example demonstrates, many non-standard chart types can be created in Tableau … Read more
Joe Mako recently created a Tableau version of a Marimekko char inspired by an example from Jon Peltier, an Excel charting expert. When I first saw this chart, I was curious as to the utility of this chart type for regular business decision-makers. I agree that for advanced analysts, it can offer a compact, … Read more
Always leave them wanting more! –P.T. Barnum Creator of “The Greatest Show On Earth!®“ About our Presentation Length Calculator Creating compelling presentations that are clear and actionable are the lifeblood of successful analyst teams. Often, analysts have worked on problems for days or weeks and have much more material to present than is relevant or … Read more
Using data from the first four seasons of the Shark Tank, Freakalytics has assembled a few fascinating insights for fans and potential entrepreneurs that may come before the Sharks in future seasons. While Barbara Corcoran is the most frequent investor. Mark Cuban is the investor with the largest amount invested and Mr. Wonderful invests the … Read more
Whether you use R to access online databases in the cloud or want to scrape website data, it’s always better to check if you are online before throwing numerous error and warning messages. I wrote this function to work with no additional R packages required. Also, this function is fast and transparent about what occurs … Read more
You can have brilliant ideas, but if you can’t get them across, your ideas won’t get you anywhere. –LEE IACOCCA Engineer on the original Ford Mustang design team and CEO during Chrysler’s comeback in the 1980’s. From the Seven C’s of Data Analysis Framework Maria is a Senior Sales Analyst for an … Read more
At Freakalytics, we’ve used the D3 data visualization library on several client projects and have been impressed with the nearly infinite set of graphing, charting and mapping possibilities. Unfortunately, we were less impressed with the high learning curve, level of effort and complexity involved in developing and customizing the desired visualizations. Perhaps you have seen … Read more
At Freakalytics, we frequently use R (often referred to as RStats) in our client projects and wanted to share our success using the RStudio Interactive Development Environment (IDE) with you. So, we created the RStudio® Keyboard Quick Reference by Freakalytics. It is available to you, compliments of Freakalytics, as a PDF and later in this … Read more
Stephen McDaniel and Eileen McDaniel, Ph.D. Freakalytics, LLC Topics: Data Analysis, Visual Analytics and Business Intelligence This was originally published in the TDWI FlashPoint Newsletter in August of 2014 Italicized sections, images and their captions were not part of the TDWI version. Until recently, visual analytics was considered a niche area. Those days are quickly … Read more
At the Qlik World 2014 expert data visualization panel, moderated by Donald Farmer, Donald asked each panelist to offer up one of our favorite data visualizations for inspiration and learning. Alberto Cairo, Visualization at The University of Miami, offered up John Snow’s 1854 map of London that helped demonstrate that cholera was spread by contaminated … Read more