R中运行程序得到如下的数据形形式,如何读取想要的数值和字符串,谢谢。
> b
y201212315552b y201212315552c y201212315552d
55 51 33
> str(b)
Named int [1:3] 55 51 33
- attr(*, "names")= chr [1:3] "y201212315552b" "y201212315552c" "y201212315552d"