Recorded: Fall 2015
Lecturer: Dr. Erin M. Buchanan
This video covers the basic ideas of functions using R - topics include:
Subsetting - using the subset function.
Tapply - how to calculate descriptives using tapply, how tapply works.
With - how to use the with function to make coding easier.
Length - how to calculate N using length (with a warning about what it does and does not do).
Concepts: How to use tapply to calculate mean, standard deviation, length, standard error, and confidence intervals. How to use gpower to calculate some effect sizes and sample size planning (basic intro to gpower).
Lecture materials and assignment available at statisticsofdoom.com.
https://statisticsofdoom.com/page/graduate-statistics/
Used in the following courses: Graduate Statistics
