Category Archives: Model

Tableau and Dynamical System Models

Kenneth Black has a post in his blog

about analyzing and visualizing dynamic system models.

He writes:

“One of my biggest regrets is that I had to work the first 20 years of my career without Tableau desktop software.  Looking back, I can see how so many computer codes I designed and wrote, or software teams that I directed, were necessary because we didn’t have a tool like Tableau to help us perform our analysis…..

There were capable tools we used …, but much of the quantitative analysis had to be programmed on a case-by-case basis.  If I had Tableau throughout my career, things would have been much easier, more insights would have been possible, and better models could have been built.

Now that Tableau is here, I’d like to take another crack at analyzing some of my earlier work.”

I had a similar experience and in a comment to his post I write:

“I found this post very interesting. I reminded me of how I became interested in dynamical systems. I happened to come across an article about a hydrologic model of the Okefenokee Swamp in Georgia. The articIe contained differential equations representing the model. I developed various dynamical models of the swamp in various programs like STELLA, Vensim, Mathematica, and even LiveMath (which for some reason still is close to my heart). When I later became chief of Acute Psychiatric Services at a Psychiatric Hospital I developed a lot of models of health services, especially acute psychatric services, in the hope that these models would increase my understanding and the understanding of health service administrators and politicians and thus lead to an improvement in the sevices. This however did not happen and has still not happened. Now, STELLA has quite good presentation methods, so I thought that the fact that administrators and politicians did not see the light of day immediately was an indication that they were not really interested in solving the serious problems of the acute psychiatric health services in Norway but mainly interested in decreasing the cost of those services. This is surely at least partly true. After reading your post I began to wonder whether it might partly be due to their inability to gain the necessary insight and understanding from the STELLA presentations and my comments on them. Perhaps it would be possible to increase their insight and understanding by presenting the underlying data and the data from simulations in Tableau Workbooks. Perhaps the clarity of these presentations and their availability to the public would make it imposible for them to avoid doing something about the problems.”