I was reminded today by Daniela that everyone should blog - and on top of that you can totally blog something small and simple just to get something out there.

In the spirit of small and simple, last week I tweeted out this cool image…

I am writing up my notes from #rstduiconf (blog post coming!) and wanted to have a quick picture to go with my thoughts. Remembering @ma_salmon 's post on Faces of R (here: https://t.co/C1sRW3hwVL ), I decided to make a Faces of Rstudioconf! pic.twitter.com/vtNVn2RyHV

— Erin Grand (@astroeringrand) February 8, 2018

I have not yet organized all my thoughts from the conference (spoilers, it was awesome, I learned so much!), but that will not stop by from posting the code I borrowed from Maelle to create the pretty image. So, here you go!

library(rtweet)
library(magick)
library(tidyverse)
library(gmp)

search_terms <- c("rstudioconf", "rstudioconf2018")

tweets <- purrr::map_df(search_terms, search_tweets, n=2000, include_rts=FALSE, parse=TRUE) 

users_tweets <- lookup_users(unique(tweets$user_id))

users <- users_tweets %>%
  select(user_id, 
         profile_image_url, 
         screen_name,
         name, 
         followers_count, 
         profile_image_url
         ) %>%
  distinct()

save_image <- function(df){
  image <- try(image_read(df$profile_image_url), silent = FALSE)
  if(class(image)[1] != "try-error"){
    image %>%
      image_scale("50x50") %>%
      image_write(paste0("~pictures/", df$screen_name,".jpg"))
  }
}

users <- filter(users, !is.na(profile_image_url))
users_list <- split(users, 1:nrow(users))
walk(users_list, save_image)


files <- dir("pictures/", full.names = TRUE)
set.seed(42)
files <- sample(files, length(files))
gmp::factorize(length(files))

no_rows <- 14
no_cols <- 31

make_column <- function(i, files, no_rows){
  image_read(files[(i*no_rows+1):((i+1)*no_rows)]) %>%
  image_append(stack = TRUE) %>%
    image_write(paste0("cols/", i, ".jpg"))
}

walk(0:(no_cols-1), make_column, files = files, no_rows = no_rows)

image_read(dir("cols/", full.names = TRUE)) %>%
image_append(stack = FALSE) %>%
  image_write("2018-02-7-facesofrstudioconf.jpg")