29.22 Meeting Videos

29.22.1 Cohort 5

Meeting chat log
00:09:25    Jon Harmon (jonthegeek):    dslc.io/bookclubber
01:07:14    Jon Harmon (jonthegeek):    ggrepel
Meeting chat log
00:10:13    Njoki Njuki Lucy:   It will be nice to see familiar faces :)
00:36:21    Jon Harmon (jonthegeek):    sim <- tribble(
  ~params,
  list(min = -1, max = 1),
  list(min = -1, max = 2),
  list(min = -1, max = 3)
)

set.seed(424242)
use_purrr <- sim %>% 
  mutate(
    sims = map(params, runif)
  )

set.seed(424242)
use_rowwise <- sim %>%
  rowwise() %>% 
  mutate(
    sims = list(runif(params))
  ) %>% 
  ungroup()

identical(use_purrr, use_rowwise)
00:37:40    Jon Harmon (jonthegeek):    > use_purrr
# A tibble: 3 x 2
  params           sims     
  <list>           <list>   
1 <named list [2]> <dbl [2]>
2 <named list [2]> <dbl [2]>
3 <named list [2]> <dbl [2]>
00:52:42    Jon Harmon (jonthegeek):    > tibble(x = 1:2, y = list(1:4, 1))
# A tibble: 2 x 2
      x y        
  <int> <list>   
1     1 <int [4]>
2     2 <dbl [1]>
00:57:04    Jon Harmon (jonthegeek):    > df2 %>% unnest(c(y))
# A tibble: 3 x 3
      x y     z        
  <dbl> <chr> <list>   
1     1 a     <int [2]>
2     2 b     <dbl [1]>
3     2 c     <dbl [1]>
00:57:23    Jon Harmon (jonthegeek):    > df2 %>% unnest(y) %>% unnest(z)
# A tibble: 4 x 3
      x y         z
  <dbl> <chr> <dbl>
1     1 a         1
2     1 a         2
3     2 b         3
4     2 c         3
01:11:05    Njoki Njuki Lucy:   that's what I have been doing - doing the surgery😄
01:11:33    Njoki Njuki Lucy:   :)

29.22.2 Cohort 6

Meeting chat log
00:14:37    Marielena Soilemezidi:  they're called quotes/quote marks!
00:14:43    Marielena Soilemezidi:  I also got a brain freeze xD
00:42:28    Daniel: https://github.com/tidyverse/broom