CODEWITHSUNDEEP
rdplyr
daisy_speed_713
daisy_speed_713

Reputation: 43

Collapse rows with same identifier and columns and retain all values in r

I have a dataframe that contains several fields related to an identifier but some are disjointed:

id    store    manager    fruit    vegetable
1     Grocery1   Joe       apple    NA
1     Grocery1   Joe       lemon    NA
1     Grocery1   Joe       NA       zucchini
2     Grocery2   Amy       orange   NA
2     Grocery2   Amy       NA       asparagus
2     Grocery2   Amy       NA       spinach
3     Grocery3   Bill      NA       NA

I want the dataframe to look like:

id    store    manager    fruit    vegetable
1     Grocery1   Joe       apple    zucchini
1     Grocery1   Joe       lemon    zucchini
2     Grocery2   Amy       orange   asparagus
2     Grocery2   Amy       orange   spinach
3     Grocery3   Bill      NA       NA

Is there a way to easily do this?

Upvotes: 1

Views: 1293

Answers (1)

benson23
benson23

Reputation: 19097

You can use tidyr::fill to fill the NA, and only keep the non-duplicated rows using distinct.

library(dplyr)
library(tidyr)

df %>% 
  group_by(store, manager) %>% 
  fill(fruit, vegetable, .direction = "updown") %>% 
  distinct()

# A tibble: 5 × 5
# Groups:   store, manager [3]
     id store    manager fruit  vegetable
  <int> <chr>    <chr>   <chr>  <chr>    
1     1 Grocery1 Joe     apple  zucchini 
2     1 Grocery1 Joe     lemon  zucchini 
3     2 Grocery2 Amy     orange asparagus
4     2 Grocery2 Amy     orange spinach  
5     3 Grocery3 Bill    NA     NA

Upvotes: 1

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