R软件在线学习资源

官网下载：https://cran.r-project.org/

图形界面Rstudio： https://www.rstudio.com/

维基百科：https://en.wikipedia.org/wiki/R_(programming_language)(programming_language)

R Journal：https://journal.r-project.org/

R Manuals：https://cran.r-project.org/manuals.html

R Packages： https://cran.r-project.org/web/packages/index.html

Microsoft R Application Network: https://mran.microsoft.com/

R for excel

https://www.rforexcelusers.com/

Quick-R

https://www.statmethods.net/

R bloggers

https://www.r-bloggers.com/

Data Science Made simple

http://www.datasciencemadesimple.com/learn-r-what-is-r/

Database using R

http://db.rstudio.com/

Data Camp

https://www.datacamp.com/home

Try R

http://tryr.codeschool.com/

Journal of Statistical Software

https://www.jstatsoft.org/index

 Wickham, H., & Grolemund, G. (2017). R for Data Science: Import, Tidy, Transform, Visualize, and Model Data. Sebastopol, CA: O’Reilly Media.

https://r4ds.had.co.nz/

The easiest place to start when turning an exploratory graphic into an expository graphic is with good labels. You add labels with the labs() function. This example adds a plot title:

ggplot(mpg, aes(displ, hwy)) +
  geom_point(aes(color = class)) +
  geom_smooth(se = FALSE) +
  labs(title = "Fuel efficiency generally decreases with engine size")

Kassambara, A. (2016). Ggplot2: Guide to Create Beautiful Graphics in R. CreateSpace Independent Publishing Platform. Retrieved June 23, 2016, from https://book.douban.com/subject/26823285/

http://www.sthda.com/english/wiki/be-awesome-in-ggplot2-a-practical-guide-to-be-highly-effective-r-software-and-data-visualization#geom_area-create-an-area-plot

# Histogram  plot
# Change histogram fill color by group (sex)
qplot(weight, data = wdata, geom = "histogram",
      fill = sex)
# Density plot
# Change density plot line color by group (sex)
# change line type
qplot(weight, data = wdata, geom = "density",
    color = sex, linetype = sex)