Running Sum in Tableau Prep
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Running sums are possible in Tableau Prep, this post goes over how to compute them in Tableau Prep Builder as of May 2020.
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More options for your Tableau Sankey Diagram
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A quick look around Tableau Public can often lead you to a Sankey diagram at some point. I can only speak from my experience, but the majority of these visuals (including mine thus far) leverage the sigmoid function. This technique has been posted about and presented on (including by me) quite a few times across the Tableau community, I first found it on Jeff Shaffer’s Blog and this has of course morphed many times and ways, for example, some of the great work done by Olivier Catherin to build a Sankey leveraging polygons (also found on Jeff’s Blog).
Not so recently, Tableau came out with some improved dashboard spacing capabilities in version 10.4. I had been awaiting this feature for a while and could not wait to update some of my Tableau Public work in order to take advantage of it (granted it took me a while to do so). Now we can get rid of those annoying spaces which have been forced into our (tiled) visuals to date.
Read MoreWeighted Medians for Weighted Data in Tableau
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There are two ways weighted medians get talked about in Tableau: The first type of weighted median is the one we covered in our earlier Padawan Dojo: Weighted Averages and Weighted Medians post where we’re aggregating a data set and we want to make sure the median is computed over the underlying records. This post is about the second type of weighted median when the data itself has a weight, for example in survey data where each respondent has an assigned weight and we want to find the weighted median value of responses.
Read MoreConcatenating Rows into String Lists in Tableau for #VisualizeNoMalaria
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As part of the Tableau Foundation/PATH/Zambia Ministry of Health #VisualizeNoMalaria project to eliminate malaria in Zambia by 2020 we had a request to build a “report” to show when health facilities have not submitted malaria incidence data so that administrators and staff can be notified in an easy-to-ready way. element (such as all the product categories a customer has purchased), etc. Read on for how to do this yourself and learn a bit more about the different levels of detail of data that we work with in Tableau.
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