识别序列中的缺失值/执行两个列表之间的不对称差异 [英] Identify missing values in a sequence / perform asymmetric difference between two lists

问题描述

使用R，我想有效地识别序列中缺少哪些值.我已经写了下面的示例.肯定有更好的办法.有人可以帮忙吗?

Using R, I want to efficiently identify which values in a sequence are missing. I've written the below example of how I do it. There must be a better way. Can someone help?

data.list=c(1,2,4,5,7,8,9)

full.list=seq(from = 1, to = 10, by =1)

output <- c()
for(i in 1:length(full.list)){
    holder1 <- as.numeric(any(data.list == i))
    output[i] <- holder1
}

which(output == 0)

推荐答案

另一种可能的解决方案

 setdiff(full.list,data.list)

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