Art in Tableau 2
This is our second belated post on producing art in Tableau. Well strictly speaking the visuals are more mathematically generated patterns with parameterised variables… Powered by Tableau
The Future of Data
‘The enormous multiplication of books in every branch of knowledge is one of the greatest evils of this age; since it presents one of the most serious obstacles to the acquisition of correct information by throwing in the reader’s way piles of lumber in which he must painfully grope for the scraps of useful lumber’ […]
Business Questions and Data Structures
While teaching an Advanced Tableau session in Washington DC last week, we ran across a great little puzzler that highlighted to me the value of discussing data structures. Working from one of Tableau’s standard data sets, the Superstore, the question was “Can we use Tableau to show which states had higher or lower sales than […]
Use Tableau Table Calculations to Draw Lines
As with all things Tableau, some of the more surprising tricks happen when you’re asked a seemingly simple, yet surprising, question. In this case, it went something like this: ‘Yes, the line chart is good but can we get a ‘fake’ line in there that is always at a 45 degree angle no matter what […]
Vertica Tips: How to Reset a Lost Password in Vertica
Have you locked yourself out of your Vertica cluster, but still have SSH or console access to the servers themselves? If you’re using the default authentication method (not LDAP/Kerberos/GSS), you can temporarily use the “trust” Vertica client authentication method and reset the password. The steps to do so are detailed below. We’ll assume that you’re […]
Using Tableau URL actions to send an email
If you’ve ever wanted to be able to send an email to a colleague because the dashboard you’re viewing in Tableau is just too good to pass up, this might help you out. In the following dashboard, we’ll accomplish a few things: 1.) Use URL actions to send an email with a ‘To’ and a […]
Parameters as Labels
Heading to my house in Durham, North Carolina and looking forward to a long bike ride and fresh peaches at the market. Spent this last week in New York City working with a great client with some true Big Data; as part of a follow-up with them I went looking for some documentation on the […]
How to remove Win32/Sirefef.EZ Trojan – ESET won’t delete Win32/Sirefef.EZ
We have come to find that ESET is a very reliable and powerful antivirus tool, but like many other anti-viruses sometimes Malware and Trojans can sneak through. I recently ran into this Win32/Sirefef.EZ Trojan virus and it completely stumped me. I ran multiple scanners and not one of them found anything wrong with the machine. […]
Tableau Dataviz: Kickstarter
Kickstarter has been making waves in recent months as the premier place for crowd funding. Projects range from big to small, from purely entertainment to potentially life changing. There’s a lot to love about this dream factory. However, there’s been controversy as well. All projects are not always what they appear and some remain skeptical that lofty claims will not match […]
Using Tableau to wrangle data and other mysteries…
It should come as no surprise that data is not always as it seems. Well, maybe not that big of a surprise to the data analysts out there. After all, most of us are swimming in data. And it might not have had time to be ‘treated’ before it’s consumed. In our ‘always on’ world, […]