r - 尝试用逗号分隔时 strsplit 中的错误

Question

我有向量

length
# [1] 15,34, 12,24, 225,
# Levels: 12,24, 15,34, 225,

我想用逗号分隔它们以最终列出这些值

尝试:

strsplit(length, ",") 

但不断收到错误消息

Error in strsplit(length, ",") : non-character argument

Answer 1

你的“长度”对象是一个 factor :

正如错误消息所示，strsplit 需要一个字符向量作为输入。

尝试:

strsplit(as.character(length), ",") 

演示

x <- factor(c("1,2", "3,4", "5,6"))
strsplit(x, ",")
# Error in strsplit(x, ",") : non-character argument
strsplit(as.character(x), ",")
# [[1]]
# [1] "1" "2"
# 
# [[2]]
# [1] "3" "4"
# 
# [[3]]
# [1] "5" "6"