【559】R学习笔记

v1 <- c(3,1,TRUE,2+3i)
v2 <<- c(3,1,TRUE,2+3i)
v3 = c(3,1,TRUE,2+3i)
print(v1)
print(v2)
print(v3)

冒号运算符。

它为向量按顺序创建一系列数字。

v <- 2:8
print(v) 

v1 <- 8
v2 <- 12
t <- 1:10
print(v1 %in% t) 
print(v2 %in% t) 

x <- 30L
if(is.integer(x)) {
   print("X is an Integer")
}

x <- c("what","is","truth")

if("Truth" %in% x) {
   print("Truth is found")
} else {
   print("Truth is not found")
}

v <- LETTERS[1:4]
for ( i in v) {
   print(i)
}