November 2013
Beginner to intermediate
528 pages
12h 45m
English
Content preview from Tableau Your Data!: Fast and Easy Visual Analysis with Tableau Software
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APPENDIX B
Tableau Data Shaper Excel Plug-In
If you rely on spreadsheet or text files as datasources, you'll probably need to reshape the data to facilitate analysis. Reshaping data manually can be time-consuming. Fortunately, Tableau has provided an Excel add-in tool that makes reshaping data fast and easy.
WHY IS RESHAPING DESIRABLE?
Figure B-1 is a typical format for spreadsheet data. The data presented includes revenue categories and time series information.
FIGURE B-1 Spreadsheet data
While Figure B-1 is conducive for analyzing data in a spreadsheet, it isn't optimal for analysis using Tableau. Each row below the headings will be interpreted as dimensions:
- Payroll
- Rent
- Supplies
- Travel
- Other
The problem is in how the columns will be interpreted. Each column represents the same measure (expense amounts), but because the expenses are divided by month, Tableau will interpret each column as a separate measure. This isn't how a database would store the information. Attaching Tableau to this datasource won't provide the flexibility you'll require. Figure B-2 shows how Tableau interprets the spreadsheet.
FIGURE B-2 Tableau connected to original data
In Figure B-2 you can see that each column of the spreadsheet is interpreted as a separate measure. This makes time series analysis ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.