Exercise

Setting effects codes

In this exercise, we will change the chocolate data frame so that the contrasts for the factors Brand and Type are set to effects codes. The chocolate data is already loaded and I've written the code to change the Brand factor. Your job is to copy that code and modify it for the Type variable.

Instructions

100 XP

Copy the three lines of code I've written to change the contrasts for the Brand variable.
Change chocolate$Brand to chocolate$Type in the copied code.

Take Hint (-30 XP)