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---
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title: "〇、R语言实践前篇"
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subtitle: 《区域水环境污染数据分析实践》<br>Data analysis practice of regional water environment pollution
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author: 苏命、王为东<br>中国科学院大学资源与环境学院<br>中国科学院生态环境研究中心
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date: today
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lang: zh
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format:
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||||||
revealjs:
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theme: dark
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slide-number: true
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chalkboard:
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buttons: true
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preview-links: auto
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||||||
lang: zh
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toc: true
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||||||
toc-depth: 1
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||||||
toc-title: 大纲
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logo: ./_extensions/inst/img/ucaslogo.png
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css: ./_extensions/inst/css/revealjs.css
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pointer:
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key: "p"
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color: "#32cd32"
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pointerSize: 18
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revealjs-plugins:
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- pointer
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filters:
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- d2
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---
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```{r}
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#| include: false
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#| cache: false
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lang <- "cn"
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require(tidyverse)
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knitr::opts_chunk$set(echo = TRUE)
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```
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||||||
## R语言实践部分课程简介
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**接下来的课程由我来带着大家一起学习、实践基于R语言的数据分析。**
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### 自我介绍
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- 苏命:来自中国科学院生态环境研究中心
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- 主要从事**水源水质水生态**方面的研究
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### 课件
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- 采用`R语言`+`quarto`完成
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- 网页公开:[https://drwater.rcees.ac.cn/course/public/RWEP/\@PUB/index.html](https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/index.html)
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- 课件代码:[https://drwater.rcees.ac.cn/git/course/RWEP.git](https://drwater.rcees.ac.cn/git/course/RWEP.git)
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- 代码web界面: [https://on.tty-share.com/s/hWkn5_eF6rfZuAyJu8sheMgrcRzx6AZ2m7V32IphFHs7gn-vP9WYOeVEYtH8a-bGTuM/](https://on.tty-share.com/s/hWkn5_eF6rfZuAyJu8sheMgrcRzx6AZ2m7V32IphFHs7gn-vP9WYOeVEYtH8a-bGTuM/)
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## 如何学习接下来的内容?
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- 上课形式:
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- **实践操作为主**,目的是让每一位同学都能独立开展基于R的数据分析
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- **2-3人一组**,自由分组,相互帮助
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||||||
- 准备工作:
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- 个人笔记本电脑,Microsoft Windows、GNU/Linux、MacOS系统
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||||||
- 安装好**Microsoft Excel**
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- 能联网
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- 如果电池不够用,建议带上插座
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||||||
- 上课规则
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- 可随时打断,**不懂就问**
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- **无特殊情况不迟到**,否则操作过程容易跟不上
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||||||
## Rstudio Server使用
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- 服务网址:[https://drwater.rcees.ac.cn/rs1/](https://drwater.rcees.ac.cn/rs1/)
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||||||
- 每位同学使用1个账号,随机生成
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||||||
- 密码:****
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- 后面的实践课程可在该服务器上完成
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## 请记住自己的账号!
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::: {layout-ncol=2}
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```{r}
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#| echo: false
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#| output: asis
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coursememberdf <- readxl::read_xlsx("../../data/course_member.xlsx")
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nmem <- nrow(coursememberdf)
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set.seed <- 23
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uiddf <- coursememberdf |>
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dplyr::mutate(uid = paste0("ruser", sprintf("%02d", sample(1:nmem, nmem)))) |>
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dplyr::select(uid, 姓名) |>
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dplyr::mutate(姓名 = "**") |>
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dplyr::arrange(uid) |>
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dplyr::mutate(group = (dplyr::row_number() - 1) %/% 10 + 1) |>
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tidyr::nest(gdf = -group) |>
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dplyr::mutate(tab = purrr::map(gdf, ~ knitr::kable(.x)))
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uiddf$tab[[1]]
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uiddf$tab[[2]]
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||||||
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||||||
```
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:::
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||||||
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||||||
## 请记住自己的账号!
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||||||
|
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||||||
::: {layout-ncol=2}
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|
||||||
|
|
||||||
```{r}
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#| echo: false
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||||||
#| output: asis
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||||||
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||||||
uiddf$tab[[3]]
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||||||
uiddf$tab[[4]]
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||||||
```
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:::
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||||||
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||||||
## 课后作业
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||||||
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提交形式:`第*次作业_姓名.qmd`文件
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||||||
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||||||
模板:
|
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||||||
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||||||
````
|
|
||||||
---
|
|
||||||
title: "课后作业*"
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|
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author: 姓名
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|
||||||
---
|
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||||||
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|
||||||
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||||||
# 第1题
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||||||
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说明
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||||||
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||||||
```{r}
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||||||
# Here is the code
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||||||
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```
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||||||
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|
||||||
# 第2题
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||||||
说明
|
|
||||||
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||||||
```{r}
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||||||
# Here is the code
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|
||||||
|
|
||||||
```
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|
||||||
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|
||||||
````
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||||||
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||||||
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||||||
## 欢迎讨论!{.center}
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|
||||||
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|
||||||
|
|
||||||
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
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@ -218,4 +218,4 @@ devtools::install_github("kjhealy/socviz")
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## 欢迎讨论!{.center}
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## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
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`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "../")`
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@ -792,4 +792,4 @@ names(Y) <- c("colA", "colB", "colC")
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## 欢迎讨论!{.center}
|
## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
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`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "../")`
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@ -130,4 +130,4 @@ require(learnr)
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## 欢迎讨论!{.center}
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## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
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`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "../")`
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@ -0,0 +1 @@
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|
../../_extensions
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@ -0,0 +1,157 @@
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||||||
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---
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||||||
|
title: "代码编写规则"
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||||||
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subtitle: 《区域水环境污染数据分析实践》<br>Data analysis practice of regional water environment pollution
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||||||
|
author: 苏命、王为东<br>中国科学院大学资源与环境学院<br>中国科学院生态环境研究中心
|
||||||
|
date: today
|
||||||
|
lang: zh
|
||||||
|
format:
|
||||||
|
revealjs:
|
||||||
|
theme: dark
|
||||||
|
slide-number: true
|
||||||
|
chalkboard:
|
||||||
|
buttons: true
|
||||||
|
preview-links: auto
|
||||||
|
lang: zh
|
||||||
|
toc: true
|
||||||
|
toc-depth: 1
|
||||||
|
toc-title: 大纲
|
||||||
|
logo: ./_extensions/inst/img/ucaslogo.png
|
||||||
|
css: ./_extensions/inst/css/revealjs.css
|
||||||
|
pointer:
|
||||||
|
key: "p"
|
||||||
|
color: "#32cd32"
|
||||||
|
pointerSize: 18
|
||||||
|
revealjs-plugins:
|
||||||
|
- pointer
|
||||||
|
filters:
|
||||||
|
- d2
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||||||
|
---
|
||||||
|
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| echo: false
|
||||||
|
knitr::opts_chunk$set(echo = TRUE)
|
||||||
|
# source("../../coding/_common.R")
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||||||
|
library(tidyverse)
|
||||||
|
library(nycflights13)
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||||||
|
```
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||||||
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|
||||||
|
|
||||||
|
## tidy data
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||||||
|
|
||||||
|
```{r}
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||||||
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knitr::include_graphics("../../image/tidy-1.png", dpi = 270)
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||||||
|
```
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||||||
|
|
||||||
|
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||||||
|
## pipe(管道) |>
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||||||
|
|
||||||
|
```{r}
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||||||
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#| eval: false
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||||||
|
require(patchwork)
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plot(1:10)
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||||||
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1:10 |> plot()
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plot(x = 1:10, y = sin(1:10))
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||||||
|
1:10 |> plot(y = sin(1:10))
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||||||
|
|
||||||
|
```
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||||||
|
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||||||
|
```{r}
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||||||
|
#| echo: false
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||||||
|
#| layout-nrow: 1
|
||||||
|
#| fig-width: 4
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||||||
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#| fig-height: 3
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||||||
|
#| out-height: 90%
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|
require(patchwork)
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|
plot(1:10)
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1:10 |> plot()
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plot(x = 1:10, y = sin(1:10))
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1:10 |> plot(y = sin(1:10))
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||||||
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||||||
|
```
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||||||
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||||||
|
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||||||
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## pipe(管道):%>%
|
||||||
|
|
||||||
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```{r}
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||||||
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#| eval: false
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#| layout-nrow: 1
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||||||
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#| fig-width: 3
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#| fig-height: 4
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#| out-height: 125%
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require(magrittr)
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1:10 %>% plot()
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1:10 %>% plot(y = sin(1:10))
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sin(1:10) %>% plot(1:10, .)
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sin(1:10) |> plot(x = 1:10, y = _)
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||||||
|
```
|
||||||
|
|
||||||
|
```{r}
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||||||
|
#| echo: false
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||||||
|
#| layout-nrow: 1
|
||||||
|
#| fig-width: 3
|
||||||
|
#| fig-height: 4
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||||||
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#| out-height: 125%
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||||||
|
require(magrittr)
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1:10 %>% plot()
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1:10 %>% plot(y = sin(1:10))
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|
sin(1:10) %>% plot(1:10, .)
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sin(1:10) |> plot(x = 1:10, y = _)
|
||||||
|
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||||||
|
```
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||||||
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||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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|
||||||
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## 代码编写规则
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| eval: false
|
||||||
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|
||||||
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# Strive for:
|
||||||
|
short_flights <- flights |> filter(air_time < 60)
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||||||
|
# Avoid:
|
||||||
|
SHORTFLIGHTS <- flights |> filter(air_time < 60)
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||||||
|
|
||||||
|
# Strive for
|
||||||
|
z <- (a + b)^2 / d
|
||||||
|
# Avoid
|
||||||
|
z<-( a + b ) ^ 2/d
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||||||
|
|
||||||
|
# Strive for
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||||||
|
mean(x, na.rm = TRUE)
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||||||
|
# Avoid
|
||||||
|
mean (x ,na.rm=TRUE)
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||||||
|
```
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||||||
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|
## 练习
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| eval: false
|
||||||
|
flights|>filter(dest=="IAH")|>
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||||||
|
group_by(year,month,day)|>summarize(n=n(),
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||||||
|
delay=mean(arr_delay,na.rm=TRUE))|>filter(n>10)
|
||||||
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|
||||||
|
flights|>filter(carrier=="UA",
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||||||
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dest%in%c("IAH","HOU"),sched_dep_time>
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0900,sched_arr_time<2000)|>group_by(flight)|>
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summarize(delay=mean(
|
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arr_delay,na.rm=TRUE),cancelled=sum(is.na(arr_delay)),
|
||||||
|
n=n())|>filter(n>10)
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||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## quarto
|
||||||
|
|
||||||
|
![](../../image/quarto-flow.png)
|
||||||
|
|
||||||
|
|
||||||
|
## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
|
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "../")`
|
||||||
|
|
|
@ -0,0 +1 @@
|
||||||
|
../../_extensions
|
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@ -0,0 +1,310 @@
|
||||||
|
---
|
||||||
|
title: "Data import"
|
||||||
|
subtitle: 《区域水环境污染数据分析实践》<br>Data analysis practice of regional water environment pollution
|
||||||
|
author: 苏命、王为东<br>中国科学院大学资源与环境学院<br>中国科学院生态环境研究中心
|
||||||
|
date: today
|
||||||
|
lang: zh
|
||||||
|
format:
|
||||||
|
revealjs:
|
||||||
|
theme: dark
|
||||||
|
slide-number: true
|
||||||
|
chalkboard:
|
||||||
|
buttons: true
|
||||||
|
preview-links: auto
|
||||||
|
lang: zh
|
||||||
|
toc: true
|
||||||
|
toc-depth: 1
|
||||||
|
toc-title: 大纲
|
||||||
|
logo: ./_extensions/inst/img/ucaslogo.png
|
||||||
|
css: ./_extensions/inst/css/revealjs.css
|
||||||
|
pointer:
|
||||||
|
key: "p"
|
||||||
|
color: "#32cd32"
|
||||||
|
pointerSize: 18
|
||||||
|
revealjs-plugins:
|
||||||
|
- pointer
|
||||||
|
filters:
|
||||||
|
- d2
|
||||||
|
---
|
||||||
|
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| echo: false
|
||||||
|
knitr::opts_chunk$set(echo = TRUE)
|
||||||
|
source("../../coding/_common.R")
|
||||||
|
library(tidyverse)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## tidyverse风格数据分析总体流程
|
||||||
|
|
||||||
|
|
||||||
|
![](../../image/data-science/import.png)
|
||||||
|
|
||||||
|
|
||||||
|
## 导入csv数据
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
read_lines("../../data/students.csv") |> cat(sep = "\n")
|
||||||
|
```
|
||||||
|
|
||||||
|
## 导入csv数据
|
||||||
|
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
read_csv("../../data/students.csv") |>
|
||||||
|
knitr::kable()
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 读取数据
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
(students <- read_csv("../../data/students.csv"))
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 读取数据
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
(students <- read_csv("../../data/students.csv", na = c("N/A", "")))
|
||||||
|
```
|
||||||
|
|
||||||
|
## 列名不要有空格
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
students |>
|
||||||
|
rename(
|
||||||
|
student_id = `Student ID`,
|
||||||
|
full_name = `Full Name`
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
## `janitor`处理空格
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
|
||||||
|
students |> janitor::clean_names()
|
||||||
|
```
|
||||||
|
|
||||||
|
## `janitor`处理空格
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
students |>
|
||||||
|
janitor::clean_names() |>
|
||||||
|
mutate(meal_plan = factor(meal_plan))
|
||||||
|
```
|
||||||
|
|
||||||
|
## `janitor`处理空格
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
students <- students |>
|
||||||
|
janitor::clean_names() |>
|
||||||
|
mutate(
|
||||||
|
meal_plan = factor(meal_plan),
|
||||||
|
age = parse_number(if_else(age == "five", "5", age))
|
||||||
|
)
|
||||||
|
students
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 直接录入
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
|
||||||
|
read_csv(
|
||||||
|
"The first line of metadata
|
||||||
|
The second line of metadata
|
||||||
|
x,y,z
|
||||||
|
1,2,3",
|
||||||
|
skip = 2
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 直接录入
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
read_csv(
|
||||||
|
"# A comment I want to skip
|
||||||
|
x,y,z
|
||||||
|
1,2,3",
|
||||||
|
comment = "#"
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 指定列名
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
|
||||||
|
read_csv(
|
||||||
|
"1,2,3
|
||||||
|
4,5,6",
|
||||||
|
col_names = c("x", "y", "z")
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
## 指定列的类型
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
another_csv <- "
|
||||||
|
x,y,z
|
||||||
|
1,2,3"
|
||||||
|
|
||||||
|
read_csv(
|
||||||
|
another_csv,
|
||||||
|
col_types = cols(.default = col_character())
|
||||||
|
)
|
||||||
|
read_csv(
|
||||||
|
another_csv,
|
||||||
|
col_types = cols_only(x = col_character())
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
## 练习
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| eval: false
|
||||||
|
|
||||||
|
read_csv("a,b\n1,2,3\n4,5,6")
|
||||||
|
read_csv("a,b,c\n1,2\n1,2,3,4")
|
||||||
|
read_csv("a,b\n\"1")
|
||||||
|
read_csv("a,b\n1,2\na,b")
|
||||||
|
read_csv("a;b\n1;3")
|
||||||
|
```
|
||||||
|
|
||||||
|
## 练习
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| eval: false
|
||||||
|
annoying <- tibble(
|
||||||
|
`1` = 1:10,
|
||||||
|
`2` = `1` * 2 + rnorm(length(`1`))
|
||||||
|
)
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 批量读取
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| message: false
|
||||||
|
|
||||||
|
sales_files <- c("../../data/01-sales.csv",
|
||||||
|
"../../data/02-sales.csv",
|
||||||
|
"../../data/03-sales.csv")
|
||||||
|
read_csv(sales_files, id = "file")
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 读取Excel,建议用`readxl`包
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
(surveydf <- readxl::read_xlsx("../../data/survey.xlsx"))
|
||||||
|
```
|
||||||
|
|
||||||
|
## 读取Excel
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
(airqualitydf <- readxl::read_xlsx("../../data/airquality.xlsx", sheet = 2))
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 批量读取
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
sales_files <- list.files("../../data",
|
||||||
|
pattern = "sales\\.csv$", full.names = TRUE)
|
||||||
|
sales_files
|
||||||
|
```
|
||||||
|
|
||||||
|
## 写入csv
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| warning: false
|
||||||
|
#| message: false
|
||||||
|
students
|
||||||
|
write_csv(students, "students-2.csv")
|
||||||
|
read_csv("students-2.csv")
|
||||||
|
```
|
||||||
|
|
||||||
|
## 写入Excel
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
writexl::write_xlsx(students, "../../data/writexldemo.xlsx")
|
||||||
|
```
|
||||||
|
|
||||||
|
## 读取数据库,以MySQL为例
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
if (FALSE) {
|
||||||
|
conn <- cctdb::get_dbconn("nationalairquality")
|
||||||
|
DBI::dbListTables(conn)
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 读取数据库,以MySQL为例
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
if (FALSE) {
|
||||||
|
conn <- cctdb::get_dbconn("nationalairquality")
|
||||||
|
metadf <- tbl(conn, "metadf") |>
|
||||||
|
head(100) |>
|
||||||
|
collect()
|
||||||
|
DBI::dbDisconnect(conn)
|
||||||
|
saveRDS(metadf, file = "../../data/metadfdemo.RDS")
|
||||||
|
}
|
||||||
|
metadf <- readRDS(file = "../../data/metadfdemo.RDS")
|
||||||
|
lang <- "cn"
|
||||||
|
metadf |>
|
||||||
|
ggplot(aes(lon, lat)) +
|
||||||
|
geom_point(aes(fill = Area)) +
|
||||||
|
dwfun::theme_sci()
|
||||||
|
```
|
||||||
|
|
||||||
|
## 练习
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| include: false
|
||||||
|
#| eval: false
|
||||||
|
if (FALSE) {
|
||||||
|
conn <- cctdb::get_dbconn("nationalairquality")
|
||||||
|
metadf <- tbl(conn, "metadf") |>
|
||||||
|
collect()
|
||||||
|
DBI::dbDisconnect(conn)
|
||||||
|
metanestdf <- metadf |>
|
||||||
|
nest(citydf = -Area)
|
||||||
|
names(metanestdf$citydf) <- metanestdf$Area
|
||||||
|
writexl::write_xlsx(metanestdf$citydf, path = "../../data/meta_city.xlsx")
|
||||||
|
dir.create("../../data/metacity/")
|
||||||
|
metanestdf |>
|
||||||
|
mutate(flag = purrr::map2(Area, citydf,
|
||||||
|
~ writexl::write_xlsx(.y,
|
||||||
|
path = paste0("../../data/metacity/", .x, ".xlsx")
|
||||||
|
)))
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
1. 从“../../data/sales.xlsx”读取第9到13行的数据
|
||||||
|
2. 从“../../data/meta_city.xlsx”读取所有的数据,并保存至“../../data/meta_city_onetable1.xlsx”
|
||||||
|
3. 从“../../data/metacity/”读取所有的数据,并保存至“../../data/meta_city_onetable2.xlsx”
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
|
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "../")`
|
||||||
|
|
|
@ -0,0 +1,7 @@
|
||||||
|
student_id,full_name,favourite_food,meal_plan,age
|
||||||
|
1,Sunil Huffmann,Strawberry yoghurt,Lunch only,4
|
||||||
|
2,Barclay Lynn,French fries,Lunch only,5
|
||||||
|
3,Jayendra Lyne,NA,Breakfast and lunch,7
|
||||||
|
4,Leon Rossini,Anchovies,Lunch only,NA
|
||||||
|
5,Chidiegwu Dunkel,Pizza,Breakfast and lunch,5
|
||||||
|
6,Güvenç Attila,Ice cream,Lunch only,6
|
|
|
@ -0,0 +1 @@
|
||||||
|
../../_extensions
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1 @@
|
||||||
|
../../_extensions
|
|
@ -0,0 +1,153 @@
|
||||||
|
---
|
||||||
|
title: "正则表达式"
|
||||||
|
subtitle: 《区域水环境污染数据分析实践》<br>Data analysis practice of regional water environment pollution
|
||||||
|
author: 苏命、王为东<br>中国科学院大学资源与环境学院<br>中国科学院生态环境研究中心
|
||||||
|
date: today
|
||||||
|
lang: zh
|
||||||
|
format:
|
||||||
|
revealjs:
|
||||||
|
theme: dark
|
||||||
|
slide-number: true
|
||||||
|
chalkboard:
|
||||||
|
buttons: true
|
||||||
|
preview-links: auto
|
||||||
|
lang: zh
|
||||||
|
toc: true
|
||||||
|
toc-depth: 1
|
||||||
|
toc-title: 大纲
|
||||||
|
logo: ./_extensions/inst/img/ucaslogo.png
|
||||||
|
css: ./_extensions/inst/css/revealjs.css
|
||||||
|
pointer:
|
||||||
|
key: "p"
|
||||||
|
color: "#32cd32"
|
||||||
|
pointerSize: 18
|
||||||
|
revealjs-plugins:
|
||||||
|
- pointer
|
||||||
|
filters:
|
||||||
|
- d2
|
||||||
|
---
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| echo: false
|
||||||
|
knitr::opts_chunk$set(echo = TRUE)
|
||||||
|
source("../../coding/_common.R")
|
||||||
|
library(nycflights13)
|
||||||
|
library(tidyverse)
|
||||||
|
|
||||||
|
```
|
||||||
|
|
||||||
|
## 匹配数字
|
||||||
|
|
||||||
|
### 匹配数字:
|
||||||
|
|
||||||
|
- \d:匹配任意数字字符。
|
||||||
|
- \d+:匹配一个或多个数字字符。
|
||||||
|
- [0-9]: 匹配数字
|
||||||
|
|
||||||
|
### 匹配字母:
|
||||||
|
|
||||||
|
- \w:匹配任意字母、数字或下划线字符。
|
||||||
|
- \w+:匹配一个或多个字母、数字或下划线字符。
|
||||||
|
|
||||||
|
## 匹配数字
|
||||||
|
|
||||||
|
### 匹配空白字符:
|
||||||
|
|
||||||
|
- \s:匹配任意空白字符,包括空格、制表符、换行符等。
|
||||||
|
- \s+:匹配一个或多个空白字符。
|
||||||
|
|
||||||
|
### 匹配特定字符:
|
||||||
|
|
||||||
|
- [abc]:匹配字符 a、b 或 c 中的任意一个。
|
||||||
|
- [a-z]:匹配任意小写字母。
|
||||||
|
- [A-Z]:匹配任意大写字母。
|
||||||
|
- [0-9]:匹配任意数字。
|
||||||
|
|
||||||
|
## 匹配数字
|
||||||
|
|
||||||
|
### 匹配重复次数:
|
||||||
|
|
||||||
|
- {n}:匹配前一个字符恰好 n 次。
|
||||||
|
- {n,}:匹配前一个字符至少 n 次。
|
||||||
|
- {n,m}:匹配前一个字符至少 n 次,但不超过 m 次。
|
||||||
|
|
||||||
|
### 匹配边界:
|
||||||
|
|
||||||
|
- ^:匹配字符串的开头。
|
||||||
|
- $:匹配字符串的结尾。
|
||||||
|
|
||||||
|
## 匹配数字
|
||||||
|
|
||||||
|
### 匹配特殊字符:
|
||||||
|
|
||||||
|
- \:转义特殊字符,使其按字面意义匹配。
|
||||||
|
- .:匹配任意单个字符。
|
||||||
|
- |:表示“或”关系,匹配两个或多个表达式之一。
|
||||||
|
|
||||||
|
#### 匹配次数:
|
||||||
|
|
||||||
|
- *:匹配前一个字符零次或多次。
|
||||||
|
- +:匹配前一个字符一次或多次。
|
||||||
|
- ?:匹配前一个字符零次或一次。
|
||||||
|
|
||||||
|
## 匹配数字
|
||||||
|
|
||||||
|
### 分组和捕获:
|
||||||
|
|
||||||
|
- ():将一系列模式组合成一个单元,可与特殊字符一起使用。
|
||||||
|
|
||||||
|
### 预定义字符集:
|
||||||
|
|
||||||
|
- \d:任意数字,相当于 [0-9]。
|
||||||
|
- \w:任意字母、数字或下划线字符,相当于 [a-zA-Z0-9_]。
|
||||||
|
- \s:任意空白字符,相当于 [ \t\n\r\f\v]。
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 实例
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
library(babynames)
|
||||||
|
(x <- c("apple", "apppple", "abc123def"))
|
||||||
|
x[str_detect(x, "[0-9]")]
|
||||||
|
x[str_detect(x, "abc[0-9]+")]
|
||||||
|
x[str_detect(x, "pp")]
|
||||||
|
x[str_detect(x, "p{4}")]
|
||||||
|
x[str_detect(x, "p{4}")]
|
||||||
|
x[str_detect("apple", "ap*")]
|
||||||
|
x[str_detect("apple", "app*")]
|
||||||
|
x[str_detect("apple", "a..le")]
|
||||||
|
```
|
||||||
|
|
||||||
|
## 练习
|
||||||
|
|
||||||
|
|
||||||
|
找出`babyname`中名字含有ar的行
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| echo: false
|
||||||
|
babynames |>
|
||||||
|
filter(str_detect(name, "ar"))
|
||||||
|
```
|
||||||
|
|
||||||
|
## 练习
|
||||||
|
|
||||||
|
|
||||||
|
找出`babyname`中名字含有ar或者以ry结尾的行。
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| echo: false
|
||||||
|
babynames |>
|
||||||
|
filter(str_detect(name, "ar"))
|
||||||
|
```
|
||||||
|
|
||||||
|
![](../../image/data-science/transform.png)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
|
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
|
||||||
|
|
|
@ -0,0 +1 @@
|
||||||
|
../../_extensions
|
|
@ -0,0 +1,50 @@
|
||||||
|
---
|
||||||
|
title: "课后作业7"
|
||||||
|
subtitle: 《区域水环境污染数据分析实践》<br>Data analysis practice of regional water environment pollution
|
||||||
|
author: 苏命、王为东<br>中国科学院大学资源与环境学院<br>中国科学院生态环境研究中心
|
||||||
|
date: today
|
||||||
|
lang: zh
|
||||||
|
format:
|
||||||
|
revealjs:
|
||||||
|
theme: dark
|
||||||
|
slide-number: true
|
||||||
|
chalkboard:
|
||||||
|
buttons: true
|
||||||
|
preview-links: auto
|
||||||
|
lang: zh
|
||||||
|
toc: true
|
||||||
|
toc-depth: 1
|
||||||
|
toc-title: 大纲
|
||||||
|
logo: ./_extensions/inst/img/ucaslogo.png
|
||||||
|
css: ./_extensions/inst/css/revealjs.css
|
||||||
|
pointer:
|
||||||
|
key: "p"
|
||||||
|
color: "#32cd32"
|
||||||
|
pointerSize: 18
|
||||||
|
revealjs-plugins:
|
||||||
|
- pointer
|
||||||
|
filters:
|
||||||
|
- d2
|
||||||
|
---
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
#| include: false
|
||||||
|
#| cache: false
|
||||||
|
lang <- "cn"
|
||||||
|
require(tidyverse)
|
||||||
|
require(learnr)
|
||||||
|
```
|
||||||
|
|
||||||
|
## 第7次课后作业
|
||||||
|
|
||||||
|
1. 根据`airqualitydf.xlsx`,按采样点统计周末2天与工作日5天中空气质量指数(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)。
|
||||||
|
2. 按照不同城市分组,统计周末2天与工作日5天AQI中位数是否具有显著差异。
|
||||||
|
|
||||||
|
作业模板:[第7次课后作业_模板.qmd](https://drwater.rcees.ac.cn/git/course/RWEP/raw/branch/main/SD/20240326_9_课后作业/第7次课后作业_模板.qmd)
|
||||||
|
|
||||||
|
|
||||||
|
## 欢迎讨论!{.center}
|
||||||
|
|
||||||
|
|
||||||
|
`r rmdify::slideend(wechat = FALSE, type = "public", tel = FALSE, thislink = "https://drwater.rcees.ac.cn/course/public/RWEP/@PUB/SD/")`
|
||||||
|
|
|
@ -0,0 +1,25 @@
|
||||||
|
---
|
||||||
|
title: 课后作业7
|
||||||
|
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:
|
||||||
|
|
||||||
|
```{r}
|
||||||
|
total <- 0
|
||||||
|
for (i in 1:100) {
|
||||||
|
total <- total + i
|
||||||
|
}
|
||||||
|
total
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
# 根据`airqualitydf.xlsx`,按采样点统计周末2天与工作日5天中空气质量指数(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,统计周末2天与工作日5天AQI中位数是否具有显著差异。
|
|
@ -0,0 +1,78 @@
|
||||||
|
#!/bin/bash
|
||||||
|
|
||||||
|
# 2024-03-26
|
||||||
|
|
||||||
|
# - part: whole-game.qmd
|
||||||
|
# chapters:
|
||||||
|
# - data-visualize.qmd
|
||||||
|
# - workflow-basics.qmd
|
||||||
|
# - data-transform.qmd
|
||||||
|
# - workflow-style.qmd
|
||||||
|
# - data-tidy.qmd
|
||||||
|
# - workflow-scripts.qmd
|
||||||
|
# - data-import.qmd
|
||||||
|
# - workflow-help.qmd
|
||||||
|
|
||||||
|
# - part: visualize.qmd
|
||||||
|
# chapters:
|
||||||
|
# - layers.qmd
|
||||||
|
# - EDA.qmd
|
||||||
|
# - communication.qmd
|
||||||
|
|
||||||
|
# 2024-03-28
|
||||||
|
|
||||||
|
# - part: transform.qmd
|
||||||
|
# chapters:
|
||||||
|
# - logicals.qmd
|
||||||
|
# - numbers.qmd
|
||||||
|
# - strings.qmd
|
||||||
|
# - regexps.qmd
|
||||||
|
# - factors.qmd
|
||||||
|
# - datetimes.qmd
|
||||||
|
# - missing-values.qmd
|
||||||
|
# - joins.qmd
|
||||||
|
#
|
||||||
|
# - part: import.qmd
|
||||||
|
# chapters:
|
||||||
|
# - spreadsheets.qmd
|
||||||
|
# - databases.qmd
|
||||||
|
# - arrow.qmd
|
||||||
|
# - rectangling.qmd
|
||||||
|
# - webscraping.qmd
|
||||||
|
|
||||||
|
# 2024-04-02
|
||||||
|
|
||||||
|
# - part: program.qmd
|
||||||
|
# chapters:
|
||||||
|
# - functions.qmd
|
||||||
|
# - iteration.qmd
|
||||||
|
# - base-R.qmd
|
||||||
|
#
|
||||||
|
# - part: communicate.qmd
|
||||||
|
# chapters:
|
||||||
|
# - quarto.qmd
|
||||||
|
# - quarto-formats.qmd
|
||||||
|
|
||||||
|
r4dsdir="$HOME/research/r4ds"
|
||||||
|
|
||||||
|
datestr="20240326"
|
||||||
|
|
||||||
|
mkdir 20240326_1_data-visualize
|
||||||
|
mkdir 20240326_2_workflow-basics
|
||||||
|
mkdir 20240326_3_data-transform
|
||||||
|
mkdir 20240326_4_workflow-style
|
||||||
|
mkdir 20240326_5_data-tidy
|
||||||
|
mkdir 20240326_6_workflow-scripts
|
||||||
|
mkdir 20240326_7_data-import
|
||||||
|
mkdir 20240326_8_workflow-help
|
||||||
|
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/data-visualize.qmd >20240326_1_data-visualize/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/workflow-basics.qmd >20240326_2_workflow-basics/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/data-transform.qmd >20240326_3_data-transform/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/workflow-style.qmd >20240326_4_workflow-style/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/data-tidy.qmd >20240326_5_data-tidy/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/workflow-scripts.qmd >20240326_6_workflow-scripts/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/data-import.qmd >20240326_7_data-import/index.qmd
|
||||||
|
awk '/```{r}/{print "\n##\n\n" $0; flag=1; next} /```/{flag=0} flag || /```/' "${r4dsdir}"/workflow-help.qmd >20240326_8_workflow-help/index.qmd
|
||||||
|
|
||||||
|
find * -type d | grep 0326 | xargs -I{} cp -r ./20240321_0_R实践课程/_extensions {}/
|
|
@ -325,7 +325,7 @@ figure > figcaption {
|
||||||
|
|
||||||
.reveal pre code:hover{
|
.reveal pre code:hover{
|
||||||
font-size: xx-large;
|
font-size: xx-large;
|
||||||
line-height: 150%;
|
line-height: 120%;
|
||||||
}
|
}
|
||||||
|
|
||||||
section#title-slide p.subtitle {
|
section#title-slide p.subtitle {
|
||||||
|
|
52
_quarto.yml
52
_quarto.yml
|
@ -1,52 +0,0 @@
|
||||||
project:
|
|
||||||
type: website
|
|
||||||
output-dir: www/
|
|
||||||
render:
|
|
||||||
- "*.qmd"
|
|
||||||
- "!chp*.qmd"
|
|
||||||
- "!analysis/"
|
|
||||||
- "!*ignored.qmd"
|
|
||||||
- "!*ignored/"
|
|
||||||
|
|
||||||
|
|
||||||
title: "区域水环境污染数据分析实践"
|
|
||||||
lang: zh
|
|
||||||
date: today
|
|
||||||
bibliography: [BB/Ref.bib, BB/localRef.bib]
|
|
||||||
|
|
||||||
website:
|
|
||||||
title: "Version: {{< var branch >}}"
|
|
||||||
reader-mode: true
|
|
||||||
site-url: https://drwater.rcees.ac.cn/{{< var projtype >}}/{{< var pubtype >}}/{{< var reponame >}}/@{{< var branch >}}
|
|
||||||
repo-url: https://drwater.rcees.ac.cn/git/{{< var projtype >}}/{{< var reponame >}}/src/branch/{{< var branch >}}
|
|
||||||
repo-actions: [edit, source, issue]
|
|
||||||
page-navigation: true
|
|
||||||
page-footer: "Copyright 2024, [Ming Su](https://drwater.rcees.ac.cn)"
|
|
||||||
navbar:
|
|
||||||
background: "light"
|
|
||||||
search: true
|
|
||||||
right:
|
|
||||||
- icon: house
|
|
||||||
text: "Home"
|
|
||||||
file: index.qmd
|
|
||||||
- text: "Slides"
|
|
||||||
file: SD/index.qmd
|
|
||||||
- text: "About"
|
|
||||||
file: about.qmd
|
|
||||||
- icon: git
|
|
||||||
menu:
|
|
||||||
- text: Edit
|
|
||||||
url: https://drwater.rcees.ac.cn/git/{{< var projtype >}}/{{< var reponame >}}/_edit/
|
|
||||||
- text: Issue
|
|
||||||
url: https://drwater.rcees.ac.cn/git/{{< var projtype >}}/{{< var reponame >}}/issues
|
|
||||||
comments:
|
|
||||||
hypothesis:
|
|
||||||
theme: clean
|
|
||||||
openSidebar: false
|
|
||||||
|
|
||||||
format:
|
|
||||||
html:
|
|
||||||
theme: cosmo
|
|
||||||
css: _extensions/inst/css/style.css
|
|
||||||
toc: true
|
|
||||||
code-link: true
|
|
|
@ -0,0 +1,55 @@
|
||||||
|
set.seed(1014)
|
||||||
|
|
||||||
|
# knitr::opts_chunk$set(
|
||||||
|
# comment = "#>",
|
||||||
|
# collapse = TRUE,
|
||||||
|
# cache = TRUE,
|
||||||
|
# fig.retina = 2,
|
||||||
|
# fig.width = 6,
|
||||||
|
# fig.asp = 2 / 3,
|
||||||
|
# fig.show = "hold"
|
||||||
|
# )
|
||||||
|
|
||||||
|
# options(
|
||||||
|
# dplyr.print_min = 6,
|
||||||
|
# dplyr.print_max = 6,
|
||||||
|
# pillar.max_footer_lines = 2,
|
||||||
|
# pillar.min_chars = 15,
|
||||||
|
# stringr.view_n = 6,
|
||||||
|
# # Temporarily deactivate cli output for quarto
|
||||||
|
# cli.num_colors = 0,
|
||||||
|
# cli.hyperlink = FALSE,
|
||||||
|
# pillar.bold = TRUE,
|
||||||
|
# width = 77 # 80 - 3 for #> comment
|
||||||
|
# )
|
||||||
|
|
||||||
|
ggplot2::theme_set(ggplot2::theme_gray(12))
|
||||||
|
|
||||||
|
# use results: "asis" when setting a status for a chapter
|
||||||
|
status <- function(type) {
|
||||||
|
status <- switch(type,
|
||||||
|
polishing = "should be readable but is currently undergoing final polishing",
|
||||||
|
restructuring = "is undergoing heavy restructuring and may be confusing or incomplete",
|
||||||
|
drafting = "is currently a dumping ground for ideas, and we don't recommend reading it",
|
||||||
|
complete = "is largely complete and just needs final proof reading",
|
||||||
|
stop("Invalid `type`", call. = FALSE)
|
||||||
|
)
|
||||||
|
|
||||||
|
class <- switch(type,
|
||||||
|
polishing = "note",
|
||||||
|
restructuring = "important",
|
||||||
|
drafting = "important",
|
||||||
|
complete = "note"
|
||||||
|
)
|
||||||
|
|
||||||
|
cat(paste0(
|
||||||
|
"\n",
|
||||||
|
":::: status\n",
|
||||||
|
"::: callout-", class, " \n",
|
||||||
|
"You are reading the work-in-progress second edition of R for Data Science. ",
|
||||||
|
"This chapter ", status, ". ",
|
||||||
|
"You can find the complete first edition at <https://r4ds.had.co.nz>.\n",
|
||||||
|
":::\n",
|
||||||
|
"::::\n"
|
||||||
|
))
|
||||||
|
}
|
|
@ -0,0 +1,8 @@
|
||||||
|
month,year,brand,item,n
|
||||||
|
January,2019,1,1234,3
|
||||||
|
January,2019,1,8721,9
|
||||||
|
January,2019,1,1822,2
|
||||||
|
January,2019,2,3333,1
|
||||||
|
January,2019,2,2156,9
|
||||||
|
January,2019,2,3987,6
|
||||||
|
January,2019,2,3827,6
|
|
|
@ -0,0 +1,7 @@
|
||||||
|
month,year,brand,item,n
|
||||||
|
February,2019,1,1234,8
|
||||||
|
February,2019,1,8721,2
|
||||||
|
February,2019,1,1822,3
|
||||||
|
February,2019,2,3333,1
|
||||||
|
February,2019,2,2156,3
|
||||||
|
February,2019,2,3987,6
|
|
|
@ -0,0 +1,7 @@
|
||||||
|
month,year,brand,item,n
|
||||||
|
March,2019,1,1234,3
|
||||||
|
March,2019,1,3627,1
|
||||||
|
March,2019,1,8820,3
|
||||||
|
March,2019,2,7253,1
|
||||||
|
March,2019,2,8766,3
|
||||||
|
March,2019,2,8288,6
|
|
Binary file not shown.
|
@ -0,0 +1,20 @@
|
||||||
|
|
||||||
|
|
||||||
|
repurrrsive::gap_simple |>
|
||||||
|
count(year)
|
||||||
|
|
||||||
|
by_year <- repurrrsive::gap_simple |>
|
||||||
|
group_by(year)
|
||||||
|
paths <- by_year |>
|
||||||
|
group_keys() |>
|
||||||
|
mutate(path = str_glue("data/gapminder/{year}.xlsx")) |>
|
||||||
|
pull()
|
||||||
|
paths
|
||||||
|
|
||||||
|
years <- by_year |>
|
||||||
|
group_split() |>
|
||||||
|
map(\(df) select(df, -year))
|
||||||
|
|
||||||
|
dir.create("data/gapminder")
|
||||||
|
|
||||||
|
walk2(years, paths, writexl::write_xlsx)
|
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Loading…
Reference in New Issue