春晖の学习资源整合

秋色从西来,苍然满关中。

Posted by Chevy on April 3, 2022

引言:

对于看到过的很棒的R语言学习网站,现予以整理,以待后览

Update:2022-04-03


数据科学中的 R 语言 四川师范大学研究生公选课《数据科学中的R语言》的课程内容,非常的详尽值得学习。

  • 建模
  • 机器学习
  • 探索性数据分析

statology网站

  • 有基础的统计概念简介
  • R语言和Python的机器学习
  • R语言操作的实例

DataNovia网站

  • R语言可视化ggplot2示例
  • cluster analysis

R 数据分析指南与速查手册

  • bookdown,包括了R语言基础,数据分析,Rmarkdown撰写分析报告
  • 其中关于可视化讲的很多

R语言作图示例网站

  • Chord diagram in R with circliz
  • ggwordcloud
  • Alluviald plot

You can use the following basic syntax to save multiple plots to a PDF in R:

#specify path to save PDF to
destination = 'C:\\Users\\Bob\\Documents\\my_plots.pdf'

#open PDF
pdf(file=destination)

#specify to save plots in 2x2 grid
par(mfrow = c(2,2))

#save plots to PDF
for (i in 1:4) {   
  x=rnorm(i)  
  y=rnorm(i)  
  plot(x, y)   
}

#turn off PDF plotting
dev.off() 

The following examples show how to use this syntax in practice.

Example 1: Save Multiple Plots to Same Page in PDF

The following code shows how to save several plots to the same page in a PDF:

#specify path to save PDF to
destination = 'C:\\Users\\Bob\\Documents\\my_plots.pdf'

#open PDF
pdf(file=destination)

#specify to save plots in 2x2 grid
par(mfrow = c(2,2))

#save plots to PDF
for (i in 1:4) {   
  x=rnorm(i)  
  y=rnorm(i)  
  plot(x, y)   
}

#turn off PDF plotting
dev.off() 

Once I navigate to the PDF in the specified location on my computer, I find the following one-page PDF with four plots on it:

img

Example 2: Save Multiple Plots to Different Pages in PDF

To save multiple plots to different pages in a PDF, I can simply remove the par() function:

#specify path to save PDF to
destination = 'C:\\Users\\Bob\\Documents\\my_plots.pdf'

#open PDF
pdf(file=destination)

#save plots to PDF
for (i in 1:4) {   
  x=rnorm(i)  
  y=rnorm(i)  
  plot(x, y)   
}

#turn off PDF plotting
dev.off() 

Once I navigate to the PDF in the specified location on my computer, I find the a four-page PDF with one plot on each page.

Additional Resources

How to Use the par() Function in R How to Overlay Plots in R