Jim Dehner 

 Tableau Visionary and Ambassador

Tableau How to’s,  Use Cases, and Forums Questions

Hey #DataFam

Let’s Talk

BGS – Session 1 – Tableau is not a Spreadsheet

First and foremost, Tableau is not a spreadsheet calculator.  That is obvious yet for newbies there is a tendency to try to translate code rather than understand how Tableau works. Have you ever tried to learn a second or third language?  In the beginning, you try to translate verbatim into the new language (everyone does […]

BGS – Session 2 – What's a Dimension and What's a Measure

  We saw that Excel calculations are cell-based.  Each cell contains a copy of a formula: But with Tableau we created a new measure using custom calculations  based on Dimensions and Measures Dimensions create categories in the data (in IT speak Partitions) and Measures are the values that are related to the dimension(s)-  In the […]

BGS – Session 3 Connecting Data Sets

  So far we have just looked at single dataset but you live in the real world data from different time periods, or at different levels or data sources have to be used in the same workbook.  You know how to do that with Vlookups and Appends but how would you do that with Tableau?   […]

BGS – Session 4 The Order of Operation

The Order of Operation is the single most important thing you need to understand as you progress in your journey.  It is the root cause of most mistakes I see in questions posted on the Forum – So what is it –   It is the sequence that Tableau goes through each time you create […]

BGS – Session 5 Charts 101

Finally,  we get to make some charts – for your first chart start with “Show Me”  from the upper right corner of the screen.   Select a Dimension and a Measure and click on Show Me.   A widow open and table shows the common chart types that can be made from the dimension and measure – […]

BGS Session 12 Parameters

For new and more advanced users, alike Parameters are misunderstood and misapplied!   Parameters are a function that allows the user to manually input a single value into a Tableau workbook.  Not that difficult –   Manual input – not based on a calculation or another field – the value can be any data type […]

BGS Session 11 – Sets and Set Actions

Do you use sets? If not why not?     Sets are not like Groups or Filters:   Sets categorize your entire data set into 2 segments –  Records are either "In" or "Out" based on the value of a single dimension.  All the data in the data table and available for use in any type […]

BGS Session 10 – Filters

Filters are easy to use, but why are they so often a source of confusion?  (see the Data Dr recording at video recording here ) There a 6 unique types of filters – each has a specific purpose and is applied at different points in the order of operation  as you load data structure the data […]

BGS Session 9 – Special Calculation – Table Calculations

Want to total across the row or column, rank a dimension, or pick out a single value? Then you need a Table Calculation!  But how?     Table Calculation Basics Table calculations should feel familiar.  They operate on the table you see in the view much like those from spreadsheet calculators.   The actual "data table" […]