Curious about graph databases? Matthias Broecheler from DataStax talks with us about looking at the world through a graph lens and using it to solve real world problems. Ginette: I’m Ginette, Curtis: and I’m Curtis, Ginette: and you are listening to Data Crunch, Curtis: a podcast about how applied data science, machine learning, and artificial intelligence are changing the world. Ginette: Data crunch is produced by the Data Crunch Corporation, an analytics training and consulting
With recent events being what they are, epidemiology has come into the spotlight. What do epidemiologists do and how does data shape their everyday experience? Sitara and Mee-a from “Donuts and Data” fill us in. Ginette: I’m Ginette, Curtis: and I’m Curtis, Ginette: and you are listening to Data Crunch, Curtis: a podcast about how applied data science, machine learning, and artificial intelligence are changing the world. Ginette: Data crunch is produced by the
What is a Dual Axis Filled Map in Tableau? A dual axis filled map allows us to plot two maps or graphs on top of each other and encode values on both of them, but it shows up looking like one map. Why is a Dual Axis Filled Map in Tableau Useful: A dual axis filled map provides us with additional context to our visualization that we would not see if
After all your effort in learning how to analyze data and present it effectively in charts and dashboards, we are going to evolve our thinking even further by learning how to tell a story with data and analytics. Chip and Dan Heath in their classic book Made to Stick, said: “Statistics are rarely meaningful in and of themselves. Statistics will, and should, almost always be used to illustrate a relationship. It’s
We’ve all been there! Dreaming about becoming a Data Analyst, but our lack of experience in the field triggers our anxiety and worries, hence lowering our confidence in ace-ing that job. Fortunately for you, we are here to share never-before-exposed insights on How to Become a Data Analyst with No Experience. 1. Fully Understand Your Role as a Data Analyst and Consultant Everybody wishes to have a road map or
Combo and Dual Axis Tableau Charts present two different variables on the same graph. For example, sales and profits. These are different than one metric, like sales, with multiple dimensions or segments (i.e. Consumers, Enterprise, SMBs). Dual Axis Tableau Charts compare two different metrics, which often have different scales. If not presented correctly, they can lead to wrong data interpretation. However, when you have limited real estate and you want
Up to this point, we’ve mostly looked at how data can be segmented by some dimension or over time. However, looking at correlation in Tableau by looking between numbers, and how one metric affects another, is an extremely valuable skill in analytics. Correlation analysis in Tableau compares two or more quantitative variables to see if values in one vary systematically with values in another. For example, as height in men
People love maps in Tableau. It’s true. They look cool and plotting data on top of them is even cooler, just check the World Corruption Map here. Open a copy of the New York Times on almost any given day and you’ll find a map graphic. Any time you have any data that is related to geography – zip codes, state or city names, addresses, provinces, postal codes, etc. –
Tableau can quickly and easily add Tableau totals and Tableau subtotals to a table or chart. It enables you to show just Tableau totals, just Tableau subtotals, or both together. Additionally, you can specify which fields you want Tableau subtotals on, and at what level of aggregation (i.e. sum, avg, etc.). How to Find Tableau Subtotals and Tableau Grand Totals 1. Let’s build a table. Bring Measure Names to Columns.
Tableau has a variety of built-in solutions for Tableau ranking values in a data set. For most simple sorts, simply use the sort icons at the top. For more advanced cases, we use either the Tableau Index or Tableau Rank Calculated Fields. This is our first foray into the world of Tableau calculations. Using the Tableau Rank Calculated Field In a new tab, right click on Profit and Create>Calculated Field.