r - R中的参数图

Question

我正在尝试使用ggplot2UNvotes 数据制作一个绘图。我正在尝试参数化 Rmarkdown 中的绘图，但出现以下错误：

Error: Problem with `summarise()` input `perc_yes`. x non-numeric argument to binary operator i Input `perc_yes` is `sum(vote == "yes")/n`. i The error occurred in group 1: yr = 1991.

代码：

single_country %>% 
  inner_join(un_roll_calls %>% select(rcid, date), by = "rcid") %>%
  mutate(yr = year(date)) %>%
  group_by(yr) %>%
  summarize(perc_yes = sum(vote == "yes") / n) %>%
  ggplot(aes(x = yr, y = perc_yes)) + 
  geom_point() +
  geom_line() + 
  labs(title = plot_title)

不确定它是否缺少一些重新编码问题。

标签： rggplot2r-markdown

Answer 1

在此之前更改此行ggplot

summarise(perc_yes = sum(vote == "yes") / n) %>%

用这条线：

summarise(n = n(), perc_yes = sum(vote == "yes") / n) %>%

其实你不见了n = n()