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Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot. #第二题复现书本80~81页内容# 这里筛选除carat大于3的数据，并使用cut_number()将carat划分为20组

library(tidyverse)

## -- Attaching packages --------------------------------------- tidyverse 1.3.1 --

## v ggplot2 3.3.5     v purrr   0.3.4
## v tibble  3.1.6     v dplyr   1.0.8
## v tidyr   1.2.0     v stringr 1.4.0
## v readr   2.1.2     v forcats 0.5.1

## -- Conflicts ------------------------------------------ tidyverse_conflicts() --
## x dplyr::filter() masks stats::filter()
## x dplyr::lag()    masks stats::lag()

new_carat <- diamonds %>% filter(carat < 3)
ggplot(data = new_carat, aes(x = carat, y = price)) +
  geom_boxplot(aes(group = cut_number(carat, 20)))

这里使用cut_width(carat, 0.1)将carat以0.1为间隔划分

library(tidyverse)
ggplot(data = new_carat, aes(x = carat, y = price)) +
  geom_boxplot(aes(group = cut_width(carat, 0.1)))