March 2019
Beginner
504 pages
11h 17m
English
Content preview from Learning Tableau 2019 - Third Edition
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Analyzing trend models
It can be useful to observe Trend Lines, but often we'll want to understand whether the trend model we've selected is statistically meaningful. Fortunately, Tableau gives us some visibility into the trend models and calculations.
Simply hovering over a single trend line will reveal the formula as well as the r-squared and P-value for that trend line:
A P-value is a statistical concept that describes the probability that the results of assuming no relationship between values (random chance) are at least as close as results predicted by the trend model. A P-value of 5% (.05) would indicate a 5% chance of random chance ...
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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.