RMarkdown

• Now you can use Rmarkdown to produce (almost) any type of documents. You can even reuse them easily

library(rmarkdown) # Docs
library(xaringan)  # Slides
library(blogdown)  # Blogs or simple website
library(pkgdown)   # R package website
library(bookdown)  # Write a book

Highcharter

• not free for commercial use

Common New Tools for Pkg Dev

library(usethis)   # Set up stuff that you can't ever remember
library(roxygen2)  # Documentation
library(testthat)  # Write tests
library(devtools)  # Iterate and develop
library(remotes)   # Install github dependencies

ggplot2

• The general trend: encourage people to build their own extensions instead of contributing back to ggplot2.

• Upcoming release of 4.0

• Focus on faster rendering of plots

• ggproto: basically build your own gg class

funneljoin

• https://github.com/robinsones/funneljoin

landed %>%
  after_inner_join(registered, 
                   by_user = "user_id",
                   by_time = "timestamp",
                   type = "first-firstafter",
                   suffix = c("_landed", "_registered"))
#> # A tibble: 5 x 3
#>   user_id timestamp_landed timestamp_registered
#>     <dbl> <date>           <date>              
#> 1       1 2018-07-01       2018-07-02          
#> 2       4 2018-07-01       2018-07-02          
#> 3       3 2018-07-02       2018-07-02          
#> 4       6 2018-07-07       2018-07-10          
#> 5       5 2018-07-10       2018-07-11

library(later)

• Asynchronous programming came up a lot. Partly due to popularity of shiny.

• Schedule an R function or formula to run after a specified period of time.

• Similar to JavaScript's setTimeout function.

later::later(function() {
  summary(mtcars)
}, 5)

[*] Not really. See next page.

arrow

• https://enpiar.com/talks/rstudio-conf-2020/#12

library(future)

• Unifying R parallel solutions across platforms without changing much on existing code

• Page 6-9

• https://tinyurl.com/u75nx3a