Merge branch 'PUB'

* PUB:
  更新第8次作业模板
  更新第8次作业模板
This commit is contained in:
Ming Su 2024-03-28 12:27:16 +08:00
commit 229075d45d
3 changed files with 10 additions and 11 deletions

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@ -4,22 +4,21 @@ author: 姓名
format: html
---
# 示例问题在R中输出`1+2+3+...+100`的结果
采用`for`循环完成,代码如下:
# 下载airquality.xlsx并读取数据
```{r}
total <- 0
for (i in 1:100) {
total <- total + i
}
total
# 下载至临时文件
tmpxlsxpath <- file.path(tempdir(), "airquality.xlsx")
download.file("https://drwater.rcees.ac.cn/git/course/RWEP/raw/branch/PUB/data/airquality.xlsx",
destfile = tmpxlsxpath)
airqualitydf <- readxl::read_xlsx(tmpxlsxpath, sheet = 1)
metadf <- readxl::read_xlsx(tmpxlsxpath, sheet = 2)
```
# 根据`airqualitydf.xlsx`按采样点统计白天8:00-20:00与夜晚20:00-8:00中空气质量指数AQI中位数按城市统计低于所有采样点AQI30%分位值的采样点占比列出上述占比最高的10个城市不考虑采样点数低于5个的城市
# 按照不同城市分组统计白天与夜晚AQI中位数是否具有显著差异。

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@ -24,7 +24,7 @@ website:
page-navigation: true
page-footer: "Copyright 2024, [Ming Su](https://drwater.rcees.ac.cn)"
navbar:
background: "grey"
background: "light"
search: true
right:
- icon: house

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