![]() csv file, or to publish the output as a data source to a server. Add Output: to save the output to an extract file (.tde or.This time, we are going to drop it on Union. Select the step you want to union data with or, as with Join, drag-and-drop to union files. The Union and Join icons appear, and we are dropping it on Join: Here we’re dragging the Clean step of the Calendar file on the Clean step of File 1. Add Join: You can select the step you want to join the data with, or you can drag-and-drop to join files.Tableau prefers to have all the values under one column as a long list of rows - Something like this: Product nameĪdd Pivot allows you to do this in 2 clicks. Add Pivot: to pivot the data - Once you add this step, Prep will ask you which fields to pivot.īased on how Tableau Prep Help explains it here in Clean and Shape Data, Tableau prefers data to be “tall” instead of “wide.”įor example, you may have a table like this one: Product name.You attach this tool to the previous step and select which fields you want to group the data by. Add Aggregate: to aggregate or group the data.Add Step: to get a better look at your table and perform cleaning operations.Add Branch (which doesn’t appear here): to split your flow into different branches.If someone were new to Tableau and/or not a data (and Alteryx) expert, Prep would be a good way to introduce them to data. In some respects, it provides a better UX. Plus, Tableau Prep offers a completely different experience compared to Alteryx. You can double-click inside a cell and rename it. However, I found some posts online explaining how you can actually do what you thought you couldn’t do on Tableau Prep.Ĭontrary to Alteryx, Prep allows you to directly interact with your dataset.Īs a simple example, you can double-click on a field name and rename it. Well, I still have to learn about them in detail here at the Data School. You will have to apply your intuition to make the right decision. However, Prep is not meant to offer optimization options. If you need to use spatial tools, Alteryx will give you the answer you’re looking for. It has a Pivot tool but not a Transpose tool. What Tableau Prep can’t do.įor what I understood, Tableau Prep falls short on: Still, it seems to do a pretty good job for the basic data cleaning that you might need to do. I didn’t know about it, but there’s even a periodic table of Alteryx tools! ![]() However, the range of tools offered by Prep is quite limited compared to Alteryx. Tableau Prep is an alternative to Alteryx for some more basic data cleaning. A periodic table of tools? Alteryx wins 1–0. How about a hospital? Read about it in my other post.
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