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Help/Documentation

There is no secret ingredient. – Mr. Ping 🍜

Read the R Documentation of every functions you have seen.

?dhyper

?plot

?which.max

?read.table

?c

?head

?mean

?sd

?summary

?hist

?table

?mosaicplot

?boxplot

?aggregate

How Po knows all those built-in functions in R?

Interactive R course lessons swirl https://swirlstats.com/students.html

Install swirl with the following commands.
```
# If you haven't installed the swirl package yet
install.packages("swirl")
library(swirl)
install_course_github("swirldev", "R_Programming_E")
```
After swirl is installed (you only need to do it once), you can start/resume the R tutorial with the commands:
```
library(swirl)
swirl()
```
Schedule some time to go though all the lessons by yourself! Almost all of the R codes you need to know are here in those lessons.
If you prefer more static readings (Po did read them to learn R!):
- R for Beginners https://cran.r-project.org/doc/contrib/Paradis-rdebuts_en.pdf
- An Introduction to R https://cran.r-project.org/doc/manuals/r-release/R-intro.pdf
If you like RStudio’s data science things,
- R for Data Science https://r4ds.had.co.nz/
- RStudio Primer https://rstudio.cloud/learn/primers/