IfElse with OR运算符

Question

试图将多个变量合并为二分变量。我想使用OR运算符“|”来根据原始变量中的条件值分配新值，

数据帧c具有与值 “原因” 一栏（ “回答”， “不能谈”， “called_back”， “悬而未决”， “语音邮件”）

# Collapse several responses into one value 
c$answered <- if(c$reason == "answered" | 
        "couldNotTalk" | 
        "called_back") 
        {c$answer == "answered"} 
       else {c$unanswer == "not answered"} 

这不是工作，但下面是（即使它是有效的）：

"Answered" -> c$answer[c$reason == "answered"] 
"Answered" -> c$answer[c$reason == "couldNotTalk"] 
"Answered" -> c$answer[c$reason == "called_back"] 

Answer 1

在这种情况下，而不是做一个或一堆的的，你可以使用%in%，为例子

c$reason %in% c("answered", "couldNotTalk", "called_back") 

然后，为了使用此值而不是使用if，您可以使用名为ifelse()的矢量化版本。

c$answered <- ifelse(
    c$reason %in% c("answered", "couldNotTalk", "called_back"), 
    "answered", 
    "not answered" 
) 

或当然你也可以