Let us focus first!
On your way from rags to riches, you will make extensive use of vectors. Vectors are one-dimension arrays that can hold numeric data, character data, or logical data. In other words, a vector is a simple tool to store data. For example, you can store your daily gains and losses in the casinos.
In R, you create a vector with the combine function c(). You place the vector elements separated by a comma between the parentheses. For example:
numeric_vector <- c(1, 2, 3)
character_vector <- c("a", "b", "c")
Once you have created these vectors in R, you can use them to do calculations.
Complete the code such that boolean_vector contains the three elements: TRUE, FALSE and TRUE (in that order).
numeric_vector <- c(1, 10, 49)
character_vector <- c("a", "b", "c")
# Complete the code for boolean_vector
boolean_vector <-
numeric_vector <- c(1, 10, 49)
character_vector <- c("a", "b", "c")
# Complete the code for boolean_vector
boolean_vector <- c(TRUE, FALSE, TRUE)
msg <- "Do not change the code that defined `numeric_vector` and `character_vector`!"
test_object("numeric_vector", undefined_msg = msg, incorrect_msg = msg)
test_object("character_vector", undefined_msg = msg, incorrect_msg = msg)
test_object("boolean_vector",
incorrect_msg = "Make sure that you assign the correct values to `boolean_vector`. Use `c(TRUE, FALSE, TRUE)`. Don't place quotes around `TRUE` and `FALSE`! Also, make sure to adopt the same order as listed in the instructions.")
success_msg("Perfect! Notice that adding a space behind the commas in the `c()` function improves the readability of your code. Let's practice some more with vector creation in the next exercise.")
Assign c(TRUE, FALSE, TRUE) to the variable boolean_vector with the <- operator.