csgillespie

# Used in the blog post
# https://www.jumpingrivers.com/blog/r-graphics-cairo-png-pdf-saving/

library(ggplot2)
library(extrafont)
library(ragg)
library(Cairo)

extrafont::loadfonts()
set.seed(1)

csgillespie

https://bit.ly/r-git-tutorial

Getting the most out of Git

This GitHub gist contains instructions for the R, git & travis tutorial.

Assumed knowledge

Partipants must be familar with

csgillespie

N = 1000
randu = matrix(0, ncol=3, nrow=N)
##Simulate from the randu random number generator
new_z = 1
for(i in 1:N) {
  new_x = (65539*new_z) %% 2^31
  new_y = (65539*new_x) %% 2^31
  new_z = (65539*new_y) %% 2^31
  randu[i,] = c(x=new_x/2^31, y=new_y/2^31, 
                   z=new_z/2^31)

csgillespie

R for Python Programmers

This course is suitable for anyone with a some previous background in programming (not necessarily Python).

Software

R

Please make sure you a using a recent version of R (at least 3.6.X) - the final digit is the minor version number. The essential numbers are the first two.

csgillespie

title	output
Tidyverse prerequisites (ODSC)	html_notebook

Software

Please make sure you a using a recent version of R (at least 3.4.X) - the final digit is the minor version number. The essential numbers are the first two. You can check the version of R you are running via

csgillespie

Software

Please make sure you are using a recent version of R (current version is 3.6.X) - the final digit is the minor version number. The essential numbers are the first two. You can check the version of R you are running via

R.version.string

Please install the latest version of RStudio (https://www.rstudio.com/products/rstudio/download/).

csgillespie

library("rtweet")
library("tidyverse") # Don't judge me!

# Why is this not in tidyverse
# Can we start a petition?
library("lubridate") 

# Notice the superior use of "=" over "<-"
get_tweets = function(q, n = 1000,  include_rts = TRUE) {
  search_tweets(q = q, n = n,

csgillespie

##R version 3.4.2 (2017-09-28)
##Platform: x86_64-pc-linux-gnu (64-bit)
##Running under: Ubuntu 16.04.3 LTS

bm_prog_toeplitz = function() {
  N = 3000
  ans = rep(0, N*N)
  dim(ans) = c(N, N)
  system.time({
    for (j in 1:N) {

csgillespie

Overview

This session will be a mixture of lectures and short practical sessions using R.

Software

Please make sure you are using the latest version of R (current version is 3.4.1) - the final digit is the minor version number. The essential numbers are the first two. You can check the version of R you are running via

csgillespie

library(plotly)
library(reshape2)
compare_func_time = function(number = 1, N = 5000){
  df = data.frame(matrix(nrow = N, ncol = 11, data = c(rnorm(10*N,10), rnorm(N,30,10))))
  colnames(df) = paste0("dist", 1:11)
  
  
  st1 = system.time({
    replicate(number, {
      l = list()