Narrowing the data used to draw the histogram is trivial. But what if we want to remove outliers from the view without changing the results? This can be more difficult, and still very useful. I invite ... Read more >

Tableau's mission is "To help people see and understand data". Exactly - it starts with "helping people" - that is, who? Tableau's founders themselves admit that in the beginning they meant analysts ... Read more >

- or how to simplify the analysis of huge amounts of data for thousands of users without compromising on cost, speed and security Access to data has changed the way many businesses are run. This ... Read more >

Data visualization is one of the stages of analysis, but usually one of the final ones - based on it we can assess the condition of our business, make conclusions or offer recommendations. However, ... Read more >

LOD (Level Of Details) calculations, already introduced in Tableau 9.0, have introduced a small revolution in the flexibility of Tableau calculations. Why are they unique? Simply put, LOD calculations ... Read more >

Visual data analysis, is much more than a simple chart. Preparing a report in the right tool is an image, a graphic communication, conveying the most important information about the data to the ... Read more >

When I conduct training, I always try to ask participants what their imagination tells them when I say heat maps. I usually hear about a map with shades of brown, red, orange and yellow. Only in ... Read more >

Scatterplot is a very simple graph. In fact, two measures will suffice. In doing so, however, it focuses Tableau's logic for creating visualizations as if through a lens. Here we can see the principle ... Read more >

In a previous post, I discussed the concept of ETL (Extract, Transform, Load) tools along with a description of the Tableau Prep application. Continuing the topic, in the following post I will ... Read more >

By definition, self-service BI tools should provide the user with the ability to work with data independently. This means not only the analytical and visual-presentation layer, but also modeling the ... Read more >