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dir_

fs	base	shell
dir_ls("/path")	list.files("/path")	ls /path
dir_info("/path")	do.call(rbind, lapply(list.files("/path"), file.info))	ls -al /path
dir_copy("/path", "/new-path")	dir.create("/new-path"); file.copy("/path", "/new-path", recursive=TRUE)	cp /path /new-path
dir_create("/path")	dir.create("/path")	mkdir /path
dir_delete("/path")	unlink("/path", recursive = TRUE)	rm -rf /path
dir_exists("/path")	dir.exists("/path")	if [ -d "/path" ]; then ... ; fi

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##################################################################
##                           Function                           ##
##################################################################

fish <- function(l, keys, .dflt = NULL, missing.rm = FALSE) {
  if(!is.list(keys)) stop("The keys to search should be given as a list.")
  
  modified_names <- names(keys) %||% rep("", length(keys)) %>% 
    str_replace("^$", as.character(NA))

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library(tidycensus)
library(mapdeck)
library(tidyverse)

token <- "your mapbox token"

hv <- get_acs(geography = "tract", 
              variables = "B25077_001", 
              state = "CA", 
              geometry = TRUE) %>%

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I am looking forward to meeting you at the Tuesday AM (10th of July) tutorial session at useR2018!. We will be discussing a subject that I am very passionate about: Web Scraping!

The slides can be found here:

• Rvest
• RSelenium
• Code

To ensure that we can be immediately productive on Tuesday morning, I would like you to get the following set up on your machines beforehand:

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europe <- c("France", "United Kingdom", "Belgium", "Italy", "Spain", 
            "Luxembourg", "Ireland", "Netherlands", "Portugal", "Andorra", 
            "Denmark", "Sweden", "Finland","Germany", "Poland", "Greece", 
            "Macedonia", "Bosnia-Herzegovina", "Serbia", "Croatia", "Bulgaria", 
            "Romania", "Hungary", "Czech Republic",  "Lithuania", "Estonia", 
            "Austria", "Slovakia", "Slovenia", "Albania", "Latvia", "Moldova",
            "Switzerland", "Belarus")

readr::read_csv("~/Desktop/week13_alcohol_global.csv") %>%
  dplyr::select(-total_litres_of_pure_alcohol, -spirit_servings) %>%

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# Get Country 3 letters ISO code and correct the ones not mapping to FIFA data
iso_url <- "https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3"
iso_html <- xml2::read_html(iso_url)
iso_country <- iso_html %>%
  rvest::html_table(fill=TRUE) %>%
  .[2:4] %>% 
  dplyr::bind_rows() %>%
  purrr::set_names(c("code","country")) %>%
  dplyr::mutate(country=if_else(country=="Côte d'Ivoire", 
                                "Ivory Coast", country),

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Setting up Emacs daemon on OS X

Tired of waiting for emacs to start on OS X? This step by step guide will teach you how to install the latest version of emacs and configure it to start in the background (daemon mode) and use emacsclient as your main editor.

Install Cocoa Emacs

Download the latest pretest version of [Emacs for Mac OS X]: http://emacsformacosx.com/builds

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usbWatcher = nil

function usbDeviceCallback(data)
    if (data["productName"] == "Kinesis Keyboard Hub") then
        if (data["eventType"] == "added") then
          hs.keycodes.setLayout("U.S. International - PC")
        elseif (data["eventType"] == "removed") then
          hs.keycodes.setLayout("Swiss French")
        end
    end

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set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugin
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required

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#!/bin/sh

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

# Set the colours you can use
black='\033[0;30m'
white='\033[0;37m'
red='\033[0;31m'