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Finishing up 2020

Nicholas Tierney njtierney

Finishing up 2020
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aammd / matrix_to_data.frame.R
Last active Jan 4, 2017
cantrip to turn a matrix into a data.frame, assuming that the first row of the matrix contains a header row
View matrix_to_data.frame.R
matrix_to_df_firstline_header <- function(mat){
mat %>%
## cut columns into lists
apply(2, function(s) list(s)) %>%
flatten %>%
map(flatten_chr) %>%
## set names to the first element of the list
{set_names(x = map(., ~ .x[-1]),
njtierney / tidy-inla.R
Created Feb 17, 2017
Gist of a little function for tidying the results of inla
View tidy-inla.R
# broom tidy method for class "inla"
tidy.inla <- function(x){
# x = model_inla
term_names <- rownames(x$summary.fixed)
tibble::as_tibble(x$summary.fixed) %>%
dplyr::mutate(terms = term_names) %>%
View regex_separating_lookbehind.R
dat <- readr::read_csv("municipality\n- Ticino\n>> Distretto di Bellinzona\n......5001 Arbedo-Castione\n......5002 Bellinzona\n......5003 Cadenazzo\n......5004 Camorino\n")
dat %>% mutate(municipality = gsub(pattern = '[\\.\\>]|^-',
replacement = "",
municipality)) %>%
separate(col = municipality,
sep = '(?<=[0-9])\\s',
into = c ("code","municipality"),
fill = "left")
trestletech / analysis.R
Last active Jul 7, 2017
Tidying of pressure-sensitive keystroke dynamics data. Raw available: . The `isJA` column represents whether or not the user currently typing is "Jeffrey Allen" -- i.e. is the user typing his own name (TRUE) or someone else's (FALSE)?
View analysis.R
download.file("", "")
words <- readr::read_csv("KSP-Word.csv")
users <- readr::read_csv("KSP-User.csv")
entries <- readr::read_csv("KSP-Entry.csv")
keypress <- readr::read_csv("KSP-KeyPress.csv")
pressure <- readr::read_csv("KSP-Pressure.csv")
markdly / html-multiple-choice.Rmd
Last active Jun 13, 2019
Multiple choice quiz question Rmarkdown
View html-multiple-choice.Rmd
theme: cerulean
### Example html multiple choice question using Rmarkdown
<!-- Render this Rmarkdown doc to html to make an interactive html / js multiple choice question -->
View fools_five.R
f <- function(...) {
function(df) with(df, ...)
footate <- function(.data, ...) {
dots <- list(...)
for (column in names(dots)) {
.data[[column]] <- dots[[column]](.data)
View css.R
#' Create a CSS ruleset
#' Create a CSS ruleset consisting of a selector and one-or-more property declarations,
#' or, if no \code{.selector} is given, create an inline style string
#' The list of included properties is not a complete list, but rather an
#' abbreviated list from
#' \url{}
hadley /
Created Feb 13, 2015
Advise for teaching an R workshop

I think the two most important messages that people can get from a short course are:

a) the material is important and worthwhile to learn (even if it's challenging), and b) it's possible to learn it!

For those reasons, I usually start by diving as quickly as possible into visualisation. I think it's a bad idea to start by explicitly teaching programming concepts (like data structures), because the pay off isn't obvious. If you start with visualisation, the pay off is really obvious and people are more motivated to push past any initial teething problems. In stat405, I used to start with some very basic templates that got people up and running with scatterplots and histograms - they wouldn't necessary understand the code, but they'd know which bits could be varied for different effects.

Apart from visualisation, I think the two most important topics to cover are tidy data (i.e. + tidyr) and data manipulation (dplyr). These are both important for when people go off and apply

nstrayer / simulate_mnar_data.R
Created Jan 21, 2020
R Script to simulate missing not at random data and look at performance of different imputation strategies.
View simulate_mnar_data.R
n <- 150
sensitivity_threshold <- 5
data <- tibble(
a = rgamma(n = n, shape = 5, rate = 0.5),
b = rgamma(n = n, shape = a/2, rate = 0.5)
generate_missing_data <- function(i){
jennybc / twee-demo.Rmd
Last active Oct 15, 2020
twee(): emulating the tree directory listing command
View twee-demo.Rmd
title: "twee demo"
author: "Jenny Bryan"
date: "17 August, 2014"
toc: TRUE
keep_md: TRUE