我有这样一个数据框:
require(dplyr)
x_1=rnorm(10,0,1)
x_2=rnorm(10,0,1)
x_3=rnorm(10,0,1)
y_1=rnorm(10,0,1)
y_2=rnorm(10,0,1)
data=data.frame(cbind(x_1,x_2,x_3,y_1,y_2))
data[1,1]=NA
data[2,1]=NA
data[5,2]=NA
> data
x_1 x_2 x_3 y_1 y_2
1 NA 0.9272000 0.29439845 -1.7856567 1.6579091
2 NA 0.2346621 1.09837343 0.3731092 0.6111779
3 0.7315300 -0.5579094 -0.08524311 -2.8661310 1.1545358
4 -0.9469221 0.6929277 -2.67173898 0.6391045 -0.5114099
5 1.5408777 NA 1.33386146 -0.5581233 -2.5733381
6 -0.2852210 -0.9532492 0.03750860 -1.0129503 0.3929722
7 -1.3821487 -2.1865094 -0.03039062 0.3960388 -1.5332137
8 -0.9447420 0.2669902 0.65167163 0.4310705 -1.5300816
9 -0.9023479 0.2068130 0.10868635 -1.1652238 -0.4892178
10 -0.9739177 -0.8094084 0.64103491 0.6063812 0.7248394
我需要创建一个新变量，它统计以"x_3;"开头的变量每行中未缺失的值的数量.为此，我使用了dplyr中的mutate和across个函数.
data=data %>% mutate(sum_no_miss=across(.cols = starts_with("x_"),~ sum(is.na(.x))))
I ran the code without getting error. But I am not getting the ourput that I want. I am getting this.
有可能知道我做错了什么吗？