From the course: Tableau Certified Data Analyst Cert Prep
Unlock this course with a free trial
Join today to access over 25,600 courses taught by industry experts.
Preparing the data - Tableau Tutorial
From the course: Tableau Certified Data Analyst Cert Prep
Preparing the data
- [Instructor] When you work with data from spreadsheets, ideally your file looks like this. Everything starts in cell A1, with one single row of headers in the first row, one field per column, and then one dataset per row. However, often your spreadsheets may look like this. We have some logos and some additional information at the top, multiple levels of headers, possibly even some combined cells, as we see here with the address combined into one field with street, city, zip code, and state. And worst of all, a cross table where we don't have one field for the date, but have our sales spread out across multiple columns with one column per quarter. Let's see how Tableau deals with that. I create a new data source and connect to my Microsoft Excel file. This one is called Kinetico_pivot. If we open this up, we can see that Tableau deals very poorly with this kind of file. Tableau cannot identify the header information, so it simply numbers the columns, F1 through F11. Tableau doesn't…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Contents
-
-
-
Connecting to data6m 41s
-
(Locked)
Combining multiple data sources by union4m 48s
-
(Locked)
Combining multiple data sources by physical join6m 50s
-
(Locked)
Combining multiple data sources by logical relationship3m 21s
-
(Locked)
Combining multiple data sources by data blending6m 5s
-
(Locked)
Preparing the data7m 47s
-
(Locked)
Extracting your data7m 47s
-
(Locked)
Changing the data6m 8s
-
(Locked)
Organizing the data pane7m 3s
-
-
-
-
-
-
-
-
-
-
-