Tableau at Twitter
Last Thursday on 3/19/2015, I went to attend San Francisco Bay Area Tableau User Group's meetup, which was hosted by Twitter.
It was a great event enlisting 4 excellent speakers, including Tableau luminaries like Allan Walker and Anya A'Hearn, a.k.a, Zen Masters, MCed impeccably by Ashley Ohmann.
The Nuance in Top N
If you think you understand what Top N means, think again. Here is a little story.
Boss: This year we have done really well. We are going to send our top 10 sales guys to the Moon. Give me the list.
Analyst RM: After running my Tableau, I can only find 5 guys in the top 10.
Selected as Best of Tableau Web ... Feb 2015
One of my post Dual Axis: To Be or Not To Be is selected as Best of The Tableau Web ... Feb 2015.
Grouping Lower % Bars in Bar Chart
After finishing Grouping Lower % Slices in Pie Chart, I feel it is necessary to write a companion post about the bar chart counterpart. Bar chart is still the most popular chart type of all time.
3Grouping Lower % Slices in Pie Chart
[This post is long over due.
Coloring Logarithmically for Optimal Human Perception
A recent post by James Eichinger inquired about the best practices of manipulating color values because his viz is swamped by high intensity colors.
Nested Sorting and Top N per Category via Rank_Unique
This task can be implemented using Index() as documented by many. Here I am going to present an alternative solution based on Rank_Unique(). I found it a little easier than using Index().
Let's use the classic Superstore example. We want to get Top N Categories per Department in terms of Sales.
