count houshold income using R

Question

I have this data frame where I should count for each household how much monetary support they should get;

My data looks like this:

hh_id	gender	hh_income
1	F	563
1	H	563
1	H	563
2	F	0
2	F	0
2	F	0
3	H	0
3	F	0

Those with the same hh_id are from the same household;

If hh_icome == 0; I should count how many people are in that household and multiply that number by 175$ and that is the hh_income for that hh.

Example: the hh with the Id == 2 has the income of 0; have 3 individuals so The income should change from 0 to 3*175=525; so the data for that he would look like this:

hh_id	gender	hh_income
2	F	525
2	F	525
2	F	525

any ideas please;

best regards

Answer 1

library(dplyr)

df %>% 
  group_by(hh_id) %>% 
  mutate(hh_income = case_when(hh_income == 0 ~ n() * 175, 
                               TRUE ~ hh_income))

# A tibble: 8 x 3
# Groups:   hh_id [3]
  hh_id gender hh_income
  <dbl> <chr>      <dbl>
1     1 F            563
2     1 H            563
3     1 H            563
4     2 F            525
5     2 F            525
6     2 F            525
7     3 H            350
8     3 F            350