One R Tip a Day

One tip per day M-F on the R programming language #rstats. Brought to you by the R community team at Microsoft.

[One R Tip a Day @RLangTip]

A tutorial from @ROpenSci on reproducible research with Docker containers https://t.co/sNXT6LWmzj #rstats

[One R Tip a Day @RLangTip]

boot(data,statistic,R) in the {boot} package will generate R bootstrap replicates of a statistic https://t.co/BIKbZIUJ18 #rstats

[One R Tip a Day @RLangTip]

Use saveRDS(obj,"myfile") and readRDS(obj,"myfile") to save / read an R object to / from a file https://t.co/iZNHFboJSa #rstats

[One R Tip a Day @RLangTip]

To debug warnings, options(warn=2) converts warnings into errors https://t.co/Tnv8DFwtli #rstats

[One R Tip a Day @RLangTip]

Strip non-ASCII characters from a string with iconv(rich.text, to="ASCII", sub="") #rstats https://t.co/svelCtI2r4

[One R Tip a Day @RLangTip]

If two packages define functions with the same name, use :: to call the one you want: https://t.co/0UjIhBAaUP #rstats

[One R Tip a Day @RLangTip]

Meet other R users at a local R user group in your area: https://t.co/3LrfnJzfGJ #rstats

[One R Tip a Day @RLangTip]

Use the Matrix package for efficient linear algebra with sparse, symmetric, positive semidefinite and general matrices https://t.co/EOvdlKNIZc #rstats

[One R Tip a Day @RLangTip]

The "round" function uses the "round-to-even" rule. round(3.5) and round(4.5) are both 4 https://t.co/PjdqmejUn6 #rstats

[One R Tip a Day @RLangTip]

Look here https://t.co/9dO7niFjlz for documentation on mathematical functions like beta(a,b) or gamma(x) #rstats

[One R Tip a Day @RLangTip]

Use R to add text, tables and charts to a Word or Powerpoint template with the officer package #rstats https://t.co/DaUwCFreKA

[One R Tip a Day @RLangTip]

The story behind R release names like "Very Secure Dishes" https://t.co/I6XX6LnVH4 #rstats

[One R Tip a Day @RLangTip]

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

[One R Tip a Day @RLangTip]

Use colSums to quickly calculate totals from the columns of a large matrix or table: https://t.co/8vK1aWWWQH #rstats

[One R Tip a Day @RLangTip]

Type ?Syntax to learn the precedence of operators in the R language: https://t.co/GrRqgKFlD0 #rstats

[One R Tip a Day @RLangTip]

What They Forgot to Teach You About R: e-book on the common sources of friction in data analysis with R, by @JennyBryan and @jimhester_ https://t.co/h5b0dq1IdU #rstats

[One R Tip a Day @RLangTip]

format(x, scientific=TRUE) prints numeric data in exponential format, so 0.0001 prints as 1e-04 https://t.co/sBvvDXpH7b #rstats

[One R Tip a Day @RLangTip]

Data Carpentry for Biologists: a self-guided 15-week course with videos and exercises in R https://t.co/Sx6RGD67D2 #rstats

[One R Tip a Day @RLangTip]

Guide to density estimation in R from Deng and Wickham https://t.co/ZG896HPuOV #rstats

[One R Tip a Day @RLangTip]

rle(x) ("run-length encoding") computes the lengths of runs of equal values in a vector https://t.co/usvgdAWkqy #rstats