Question

dt <- data.frame(means = runif(5),
           sds = runif(5),
           medians = runif(5),
           MissedPercentage = sample(c(0.1,0.3),5,replace = T) )

我希望收集所有means，sds和medians，但MissedPercentage。所以，这就是我所做的：

dt<-gather(dt,key=stat,value=c(`means`,`sds`,`medians`))

但它抱怨：

Error: Must supply a symbol or a string as argument

我最喜欢的答案是：

   stat c("means", "sds", "medians")  MissedPercentage
1 means                   0.12638209  0.1 
2 means                   0.80834248  0.1 
3 means                   0.94386651  0.3
4 means                   0.87709217  0.3
5 means                   0.30200943  0.3
6   sds                   0.06297956  0.1

Answer 1

dt <- data.frame(means = runif(5),
                 sds = runif(5),
                 medians = runif(5),
                 MissedPercentage = sample(c(0.1,0.3),5,replace = T) )  

dt<-gather(dt,key=stat, value=c('means','sds','medians'), -MissedPercentage) %>% 
    select(2,3,1)

>head(dt)
stat c("means", "sds", "medians") MissedPercentage
1 means                    0.9677432              0.1
2 means                    0.7025229              0.1
3 means                    0.2191380              0.3
4 means                    0.6291055              0.3
5 means                    0.3078163              0.1
6   sds                    0.5811671              0.1

Answer 2

只需：

tidyr::gather(dt,stat,value,1:3,-4)

R：必须提供符号或字符串作为参数

2 个答案: