R语言expss包报错：forderv函数存在未使用参数reuseSorting=TRUE

DevOps 小满

2026-6-17

解决expss包cross_cpct函数报错问题

我刚开始使用R语言的expss包创建带百分比的交叉表，编写代码如下：

library(expss)
data(mtcars)
mtcars = apply_labels(mtcars,
                      mpg = "Miles/(US) gallon",
                      cyl = "Number of cylinders",
                      disp = "Displacement (cu.in.)",
                      hp = "Gross horsepower",
                      drat = "Rear axle ratio",
                      wt = "Weight (1000 lbs)",
                      qsec = "1/4 mile time",
                      vs = "Engine",
                      vs = c("V-engine" = 0,
                             "Straight engine" = 1),
                      am = "Transmission",
                      am = c("Automatic" = 0,
                             "Manual"=1),
                      gear = "Number of forward gears",
                      carb = "Number of carburetors"
)
cross_cpct(mtcars, cyl, list(total(), am, vs))

运行后出现报错：

Error in forderv(x, cols, sort = TRUE, retGrp = !physical, reuseSorting = TRUE) : 
  unused argument (reuseSorting = TRUE)

解决方法

报错原因是data.table版本与expss版本不兼容：reuseSorting是data.table较新版本新增的参数，若你的data.table版本过旧，就会出现该参数未定义的错误。
按以下步骤修复：
1. 升级data.table到最新版本：
```
install.packages("data.table")
```
2. 同时确保expss也是最新版本：
```
install.packages("expss")
```
3. 重启R会话后重新运行代码。