Search for tag: "tapply()"

4 Media

T Tests in R.mp4 duration 10 minutes 12 seconds T Tests in R.mp4 T Tests in R.mp4	T Tests in R.mp4 In this video we illustrate how to conduct paired, one-sample, and two-sample t tests in R. These tests are implemented in the t.test() function. We illustrate the tests with examples that are… box plots +21 More From Daniel Hall 133 plays 0 Copyright I created all of this content
Barcharts in R.mp4 duration 8 minutes 27 seconds Barcharts in R.mp4 Barcharts in R.mp4	Barcharts in R.mp4 Although plot() can produce bar charts, the barplot() function is often more convenient. In this video we introduce this function and illustrate its use to produce bar charts that display one and… land vehicles +26 More From Daniel Hall 116 plays 0 Copyright I created all of this content
Creating Frequency Tables in R duration 8 minutes 49 seconds Creating Frequency Tables in R Creating Frequency Tables in R	Creating Frequency Tables in R Frequency distributions (univariate and joint) can be displayed in contingency tables, or cross-tabulations. In this video we show how tapply() can be used to create such tables, but we… frequency distribution +22 More From Daniel Hall 1,409 plays 0 Copyright I created all of this content
Repeatedly Applying Functions to Data - Part 1… duration 7 minutes 42 seconds Repeatedly Applying Functions to Data - Part 1… Repeatedly Applying Functions to Data - Part 1 (tapply())	Repeatedly Applying Functions to Data - Part 1 (tapply()) The tapply() function is one of several "apply" functions in R that allow a function to operate on data repeatedly. The function tapply() applies a function to groups of observations within… by processing +16 More From Daniel Hall 172 plays 0 Copyright I created all of this content