Useful functions for DSR and ISR functions

[sebastian-fox]

I've just been pointed towards two tidyr functions that might be useful for the two functions named above (comlpete, and expand). From their documentation:

library(dplyr, warn.conflicts = FALSE)
library(tidyr)
df <- tibble(
  group = c(1:2, 1),
  item_id = c(1:2, 2),
  item_name = c("a", "b", "b"),
  value1 = 1:3,
  value2 = 4:6
)
df %>% complete(group, nesting(item_id, item_name))

df <- tibble(
  year   = c(2010, 2010, 2010, 2010, 2012, 2012, 2012),
  qtr    = c(   1,    2,    3,    4,    1,    2,    3),
  return = rnorm(7)
)
df %>% expand(year, qtr)

Just thought I'd document it in case you found them useful