ju <- matrix()
mylist <-list(1,5,"例子",'s','home')
mylist
str(mylist)
# 创建纯字符矩阵
text_matrix <- matrix(c("苹果", "香蕉", "橙子", "葡萄"), nrow = 2)
# [,1] [,2]
# [1,] "苹果" "橙子"
# [2,] "香蕉" "葡萄"
# 当混合数值和字符串时,所有元素会被强制转换为字符型
print(mixed_matrix <- matrix(c(1, "A", TRUE, 3.14), nrow = 2))
# [,1] [,2]
# [1,] "1" "TRUE"
# [2,] "A" "3.14"
mixed_matrix
a1 <-c("a1",TRUE,12,8,94,6,78,45)
my_matrix <- matrix(a1,2,4)