如何在r中使用ifelse函数
如何在r中使用ifelse函数
提问于 2014-11-10 09:38:44
surveywithoutmissing <- data.frame(Collaboration_A = rep(c(0 "times", 1 "time", 2-4 "times", >4 "times", NA),
"times" = c(0, 20, 26, 11, 118)),
Collaboration_B = rep(c(0 "times", 1 "time", 2-4 "times",>4 "times", NA),
"times" = c(0, 22, 33, 16, 104)),
Collaboration_C = rep(c(0 "times", 1 "time", 2-4 "times", >4 "times", NA),
"times" = c(0, 16, 23, 9, 127)),
Collaboration_D = rep(c(0 "times", 1 "time", 2-4 "times", >4 "times", NA),
"times" = c(0, 24, 12, 4, 135)))这将不会运行，并给出错误响应：
Error: unexpected ')' in ""times" = c(0, 24, 12, 4, 135))"
回答 2
Stack Overflow用户
发布于 2014-11-10 09:52:59
我不完全确定你想要做什么。但在我看来，你会尝试用不同的数字重复每个元素(例如，"0"，">4")。也就是说，您似乎重复"0“、"1”、"2-4“、">4"，NA对于每个协作具有不同的重复次数。在这里我照顾了Collaboration_A和B。
# Set up the number of repetition
ana <- c(0, 20, 26, 11, 118)
bobby <- c(0, 22, 33, 16, 104)
foo <- data.frame(Collaboration_A = rep(c("0", "1", "2-4", ">4", NA), ana),
Collaboration_B = rep(c("0", "1", "2-4", ">4", NA), bobby),
stringsAsFactors = FALSE)Stack Overflow用户
发布于 2014-11-10 09:56:19
如果你想要包含单词"time“和"times”，它们需要放在引号中。
surveywithoutmissing <- data.frame(Collaboration_A = rep(c("0 times", "1 time", "2-4 times", ">4 times", NA),
"times" = c(0, 20, 26, 11, 118)),
Collaboration_B = rep(c("0 times", "1 time", "2-4 times", ">4 times", NA),
"times" = c(0, 22, 33, 16, 104)),
Collaboration_C = rep(c("0 times", "1 time", "2-4 times", ">4 times", NA),
"times" = c(0, 16, 23, 9, 127)),
Collaboration_D = rep(c("0 times", "1 time", "2-4 times", ">4 times", NA),
"times" = c(0, 24, 12, 4, 135)))它会产生
> surveywithoutmissing
Collaboration_A Collaboration_B Collaboration_C
1 1 time 1 time 1 time
2 1 time 1 time 1 time
3 1 time 1 time 1 time
4 1 time 1 time 1 time
5 1 time 1 time 1 time
6 1 time 1 time 1 time
7 1 time 1 time 1 time
8 1 time 1 time 1 time
9 1 time 1 time 1 time
10 1 time 1 time 1 time
11 1 time 1 time 1 time
12 1 time 1 time 1 time
13 1 time 1 time 1 time
14 1 time 1 time 1 time
15 1 time 1 time 1 time
16 1 time 1 time 1 time
17 1 time 1 time 2-4 times
18 1 time 1 time 2-4 times
19 1 time 1 time 2-4 times
20 1 time 1 time 2-4 times
21 2-4 times 1 time 2-4 times
22 2-4 times 1 time 2-4 times
23 2-4 times 2-4 times 2-4 times
24 2-4 times 2-4 times 2-4 times
25 2-4 times 2-4 times 2-4 times
26 2-4 times 2-4 times 2-4 times页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/26835482
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