getting error stating "Error: `x` must be a formula"

Question

我正在使用具有 summary_table 功能的 qwraps2 包。出于某种原因，当我 运行 下面的代码时出现错误 "Error: x must be a formula"。

args(summary_table)

summary_table(death_vs_gender, summaries = qsummary(death_vs_gender))

our_summary1 <- list("Table 2: Summary Statistics for Mass 
Shooting Deaths in American between 
1966-2017 by Men & Women" = list(
                             "n" = sum(death_vs_gender$Deaths),
                             "Min" = ~ min(death_vs_gender$Deaths),
                             "Max" = ~ max(death_vs_gender$Deaths),
                             "Median" = ~ median(death_vs_gender$Deaths),
                             "Mean" = ~ mean(death_vs_gender$Deaths),
                             "Std. Dev." = ~ sd(death_vs_gender$Deaths)))


whole <- summary_table(death_vs_gender, our_summary1)
whole

Answer 1

"n" = sum(death_vs_gender$Deaths), 行似乎省略了一个 ~。

尝试以下操作：

our_summary1 <- 
  list("Table 2: Summary Statistics for Mass Shooting Deaths in American between 1966-2017 by Men & Women" = 
       list(
            "n"         = ~ sum(Deaths),
            "Min"       = ~ min(Deaths),
            "Max"       = ~ max(Deaths),
            "Median"    = ~ median(Deaths),
            "Mean"      = ~ mean(Deaths),
            "Std. Dev." = ~ sd(Deaths)
           )
      )

请注意，名称 death_vs_gender 已被省略。调用 summary_table 时，会在提供的 data.frame 中查找变量。此外，从 qwraps2 0.5.0 版开始，不再需要或推荐使用数据代词 .data。