romainfrancois/tie

Multiple output version of dplyr::summarise

tie

bow and tie can be combined to do something similar to dplyr::summarise, but allowing to express how to redistribute parts of the results to their own column.

library(tie)

iris %>% 
  dplyr::group_by(Species) %>% 
  bow( tie(min, max) := range(Sepal.Length) )
#> # A tibble: 3 x 3
#>   Species      min   max
#>   <fct>      <dbl> <dbl>
#> 1 setosa      4.30  5.80
#> 2 versicolor  4.90  7.00
#> 3 virginica   4.90  7.90

tie's Issues

can't install

I found a reference to tie here: https://stackoverflow.com/a/52352912/1368860, but I can't install it:

Warning in install.packages :
  package ‘tie’ is not available (for R version 3.5.3)

Maybe there's another way to do the multiple columns from assignment of function output in mutate?

Thanks!

bow-tie for mutate

Hi Romain,

Thanks for this beautiful package, hope it will be integrated to the tidyverse someday.

Is there any way to achieve the bow-tie effect on a mutate call, the same way your function applies it to the summarize call ?

Dan