Intermediate R
Find the solution to these exercises without using R.
Exercise 1: Write the output.
TRUE & FALSE | TRUE | FALSE
Answer
TRUE
Exercise 2: Write the output.
TRUE & FALSE | TRUE & FALSE
Answer
FALSE
Exercise 3: Write the output.
TRUE | FALSE & TRUE & FALSE
Answer
TRUE
Exercise 4: Write the output.
num <- c("GER", "ESP", "ITA", "GER", "FRA", "BUL")
sum(num == "GER")
Answer
2
Exercise 5: Write the output.
num <- c("GER", "ESP", "ITA", "GER", "FRA", "BUL")
mean(num == "GER")
Answer
0.3333333
Exercise 6: Write the output.
count <- c(10, 4, 2, 6)
sum(count > 5)
Answer
2
Exercise 7: Write the output.
perc <- c(10, 4, 2, 6)
mean(perc > 5)
Answer
0.5
Exercise 8: Write the output.
factor(c(1, 3, 1, 4), labels = c("B", "A", "C"))
Answer
B A B C