Tableau is one of the most flexible platforms for data analysis. Tableau assignments help students understand the right techniques to collect, organize and analyze data. You can combine, shape and clean data with the utmost precision. You may have a hard time performing the calculations on this software. Don’t worry; this article has got you covered. Here’s a brief overview of the different types of calculations required in Tableau.

Once you get familiar with the different types of calculations, it will be 10X easier for you to work on this software. Opt for Tableau assignment writing services if you are still not able to perform calculations on this software.

The Three Main Types Of Calculations In Tableau 

Most of the students lose valuable marks in this assignment because they are unable to understand the basic techniques of calculations. You can consult with professional Tableau assignment writers if you need help with the calculations even after reading this article.

There are three primary types of calculations required to create fields in Tableau, such as:

Basic expressions 

These calculations let you modify certain members and values at the visualization level of detail, which is known as an aggregate calculation. When you modify data at the data source level of detail, then it is known as the row-level calculation.

Here is an example for you to follow.

In the table mentioned below, there are two popular fantasy authors and their books. Now say you want to craft a column which will have only the author’s last name and a column with the number of books in each series.

To produce the result, you need to perform the following row-level calculation:

SPLIT ([Author], ‘.’, 3)

If it is an aggregate method, then you need to perform the following calculation.

COUNT([Series])

Level of Detail expressions or LOD

This one also lets you compute values at the visualization level and the data source level. This type of calculation lets you decide the level of granularity that you want to compute. There are three granular levels you can choose from:

More granular level or INCLUDE

Less granular level or EXCLUDE

Independent granular level or FIXED

Using the same example as mentioned above, you need to use the following LOD expression.

{ FIXED [Series] : (MN ( [ Year Released ] ))}

Table calculations 

This type of calculation lets you change values at the level of detail in terms of visualization only. Let’s use the same example as mentioned above. Say you have been asked to calculate the number of years since the release of the last book. Thus, in that case, you have to use the following calculation:

ATTR ( [Year Released] ) – LOOKUP ( ATTR ( [Year Released] ), -1)

It’s okay if you find all these commands and functions complicated in the beginning. Talk to your professors, or you can even seek online help. Also, the support team at Tableau is responsive enough to help you go through all the calculations instantly. Good Luck!

Summary: 

Calculations on Tableau can become way easier if you know about the different types of calculation along with their respective commands and functions. Give this article a read and you will be all set to perform the calculations on your own.

Author Bio:

Joshua Wilkins is a Tableau specialist. He also provides dissertation help online to students at MyAssignmenthelp.com. Joshua enjoys painting on canvases in his free time.