rle(x) ("run-length encoding") computes the lengths of runs of equal values in a vector rdocumentation.org/packages/base/… #rstats

Guide to density estimation in R from Deng and Wickham vita.had.co.nz/papers/density… #rstats

Data Carpentry for Biologists: a self-guided 15-week course with videos and exercises in R datacarpentry.org/semester-biolo… #rstats

format(x, scientific=TRUE) prints numeric data in exponential format, so 0.0001 prints as 1e-04 rdocumentation.org/packages/base/… #rstats

What They Forgot to Teach You About R: e-book on the common sources of friction in data analysis with R, by Jenny Bryan and Jim Hester rstats.wtf #rstats

Type ?Syntax to learn the precedence of operators in the R language: rdocumentation.org/packages/base/… #rstats

Use colSums to quickly calculate totals from the columns of a large matrix or table: rdocumentation.org/packages/base/… #rstats

Use TRUE and FALSE to represent the boolean values. These are reserved words, unlike T and F which can be overwritten as variables.

The story behind R release names like "Very Secure Dishes" livefreeordichotomize.com/2017/09/28/r-r… #rstats

Use R to add text, tables and charts to a Word or Powerpoint template with the officer package #rstats davidgohel.github.io/officer/

Look here rdocumentation.org/packages/base/… for documentation on mathematical functions like beta(a,b) or gamma(x) #rstats

The "round" function uses the "round-to-even" rule. round(3.5) and round(4.5) are both 4 rdocumentation.org/packages/base/… #rstats

Use the Matrix package for efficient linear algebra with sparse, symmetric, positive semidefinite and general matrices jimskinner.github.io/post/elegant-l… #rstats

Meet other R users at a local R user group in your area: jumpingrivers.github.io/meetingsR/r-us… #rstats

If two packages define functions with the same name, use :: to call the one you want: stackoverflow.com/q/39137110/154… #rstats

Strip non-ASCII characters from a string with iconv(rich.text, to="ASCII", sub="") #rstats rdocumentation.org/packages/base/…

To debug warnings, options(warn=2) converts warnings into errors rdocumentation.org/packages/base/… #rstats

Use saveRDS(obj,"myfile") and readRDS(obj,"myfile") to save / read an R object to / from a file rdocumentation.org/packages/base/… #rstats

boot(data,statistic,R) in the {boot} package will generate R bootstrap replicates of a statistic cran.r-project.org/package=boot #rstats

A tutorial from @ROpenSci on reproducible research with Docker containers ropenscilabs.github.io/r-docker-tutor… #rstats