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Multiple Plots per Page

In this video we illustrate two methods for putting multiple plots on a single page. The first approach is to set the mfrow or mfcol graphical parameter with the par() function. These parameters…

From  Daniel Hall 118 plays 0  

Conditional Execution - Part 3 (The switch() Function).mp4

The ifelse() function and if-else statements can be used to evaluate one of two expressions or chunks of code depending upon a Boolean logical condition. However, these constructions must be chained…

From  Daniel Hall 58 plays 0  

Conditional Execution - Part 2 (The if Statement).mp4

Conditional execution is a fundamental technique in all computer programming and most computing languages have an if statement. The if and if else statements in R are similar to those in other…

From  Daniel Hall 68 plays 0  

ANOVA - Part 3 (One-way Analysis in PROC GLM)

In this video we implement a one-way ANOVA in PROC GLM, using the same example (Example #8 on Pizza Diameters) as in the previous video. But here we discuss the important difference between the…

From  Daniel Hall 790 plays 0  

ANOVA - Part 4 (Two-way ANOVA in PROC GLM)

In this video we analyze the pizza diameter data using a two-way ANOVA model implemented in PROC GLM. Here we see how to specify the model and how to use the SLICE option on the LSMEANS to test…

From  Daniel Hall 935 plays 0  

PROC TTEST - Part 2 (The Two-Sample Test)

This video illustrates PROC TTEST for conducting two-sample t tests. Our example is the Dominos-Eagle Boys Pizza dataset. In this example we see that it is important to conduct this test separately…

From  Daniel Hall 200 plays 0