Let's be evil
This foolish R user is reading the iris data set and specified the header using the logical short-cut F.
This exercise is part of the course
Defensive R Programming
Exercise instructions
- Before the
read.csv()code is run, redefine the variableFto be a positive numeric so that it is interpreted asTRUE.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Define F to be interpreted as TRUE
F > ___
# Read in data: don't alter the line below
data_set <- read.csv("iris.csv", header = F)