#exercise 1
seq(10,20,2)## [1] 10 12 14 16 18 20#exercise 2
c("Abby","Betty","Cathy","Debby")## [1] "Abby" "Betty" "Cathy" "Debby"#exercise 3
c(TRUE,TRUE,TRUE,FALSE,FALSE) ## [1] TRUE TRUE TRUE FALSE FALSE#exercise 4
rep(5,10) ## [1] 5 5 5 5 5 5 5 5 5 5#exercise 5
v3 = c(5,12,25)
v4 = c("A","B","C")
df1=data.frame(v3,v4)
v5=c(TRUE,FALSE,FALSE)
df2=data.frame(v3,v4,v5)
df2## v3 v4 v5
## 1 5 A TRUE
## 2 12 B FALSE
## 3 25 C FALSE