我想知道如何在R中获取表格中特定的一行。例如:
> a <- c(13,13,
14,14,14,14,14,14,
15,15,15,15,15,15,
16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
17,17,17,17,17,17,17,
18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,18,
19,19,19,19,19,19,19,19,19,19,19,
20,20,20,20,20,20,20,20,20,
21,21,21,21,21,21,21,21,21,21,21,
22,22,22,22,22,22,22,22,22,
23,23,23,24,25,25,27)
> table(a)
a
13 14 15 16 17 18 19 20 21 22 23 24 25 27
2 6 6 15 7 17 11 9 11 9 3 1 2 1
我该如何提取表格的最后一行?
?table
下的示例。根据因子数量,可能会有多行数据,并且你需要用b[dim(b)[1],]
选择最后一行数据。 - Carl Witthoftqplot
这样的函数不会将其视为向量,不幸的是。 - JelenaČuklina