Functions: Changing Values of a Vector

Question 1

changing values of a vector

Answer 1

a <- rep(1, 10)

a[1:5] <- 9
a
##[1] 9 9 9 9 9 1 1 1 1 1

this changed the first 5 items of vector “a” to 9s, when we originally assigned them as 10s

Question 2

change vectors using logical operators

Answer 2

x is a vector of numbers that should be from 1 to 10

x <- c(5, -5, 7, 4, 11, 5, -2)

x[x < 1] <- 1

x[x > 10] <- 10

x
##[1] 5 1 7 4 10 5 1