We often work in settings where the data set has a lot of missing data– some missingness in the (many) covariates, some in the main exposure of interest, and still more in the outcome. (Nick describes this as “job security for statisticians”).Some ana…
Tag: graphics
Example 9.6: Model comparison plots (Completed)
We often work in settings where the data set has a lot of missing data– some missingness in the (many) covariates, some in the main exposure of interest, and still more in the outcome. (Nick describes this as “job security for statisticians”).Some ana…
Example 9.6: Model comparison plots (Completed)
We often work in settings where the data set has a lot of missing data– some missingness in the (many) covariates, some in the main exposure of interest, and still more in the outcome. (Nick describes this as “job security for statisticians”).Some ana…
Graphics for univariate data – Pie is delicious but not nutritious
When you have univariate data, that is, a single measure on a variety of units, the most common statistical graphic is a pie chart. But pie charts should not be used. Ever. When there are a lot of units, pie charts are unreadable. When there are on…
Scatterplots and enhancements
When you have two numeric variables and are interested in the relationship between them, the basic statistical graph is the scatterplot. These can be good, but there are ways to enhance them and there are also alternatives which can be better in so…
The Joy of Stats – Income vs Health
Chris@SAS recently tweeted a link to this: http://www.youtube.com/watch?v=jbkSRLYSojo. I found it one of the most fascinating video clips I’ve seen all year, on many levels. It offers a fascinating commentary on the development of the world over the la…
Example 8.13: Bike ride plot, part 2
Before explaining how to make and interpret the plot above, Nick and I want to make a plea for questions–it’s hard to come up with useful questions to explore each week!As shown in Example 8.12, data from the Cyclemeter app can be used to make interes…
Example 8.12: Bike ride plot, part 1
The iPhone app Cyclemeter uses the phone’s GPS capability to record location and other data, and infer speed, while you ride. I took a ride near my house recently, and downloaded the data. I’d like to examine my route and my speed. A simple plot of …