Thank-You Note to the Tableau Community
Right before the 2015 Tableau Conference, Rody Zakovich of the Tableau community forum initiated a series of appreciation pieces to a select group of members, including me:
Community Appreciation - Alexander Mou
I am very much moved. It meant a lot to me.
Evolution of the Order of Operations Diagram
[Update: There are a few new updates on this topic in the comment section.]
Initially Tableau published this diagram on the Order of Operations in a white paper.
Last month (September 2015), I updated the diagram to include Set Filters and called it the Precedence of Filtering.
Blending Data Via Multi-Dimensional Scaffolding
Scaffolding is a way to blend data. In quite a few cases, it gets the job done quite well. Thus there seems no more need to join or union data at the record level.
In recent articles, I described "Lossless Data Blending via Scaffold" and "Blending Dates via Scaffold".
Creating Histogram in Tableau
Histogram is one of the most widely used analysis methods of all time. It is my personal favorite topic to write about. In Tableau, there are a variety of ways to create it. I have to say here, Tableau is quite versatile.
Histogram via Running Count
During a screen share session with Tableau Zen Master Joe Mako, he showed this method of calculating histogram. Again, I am going to describe it here. This is the latest article on histogram, although I have written many on the same subject.
2Blending Dates via Scaffolding
This is a sequel to Lossless Data Blending via Scaffolding. The blending here is also lossless.
Date dimension is one of the most important dimensions in data structure. Most data are transactional ones with a timestamp attached to each transaction record.
