Data Visualization
Tableau Basics: SUM vs AVG
First time users of Tableau often get tripped up over the default Tableau SUM aggregation. Here is what I mean. Suppose the question is to find the average of SALES PER VISIT (sales measured across the preceding 6 months) among the males and females in a sample of 25 shoppers. The data look like this…
Read MoreSan Diego and COVID-19 … A Very Challenging Year
We just noticed that it has been a full year since we started posting daily updates to our San Diego County COVID-19 dashboard. This dashboard tracks the San Diego COVID experience: new cases, tests, and positivity rates at the county-level as well as new cases for each of the county’s ZIP Codes. On this first-year…
Read MoreHow to Visualize Changing Recession Start Date Forecasts
In case you missed it, we are in a recession. According to Intensity’s latest US recession start date forecast, there is a 50% probability of a recession starting sometime in the January to February 2019 period. And a 97% probability of it starting sometime within the next 6 months. Their “point estimate” of a recession…
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