根据R中的其他变量有条件地填充缺失数据

Question

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sorry for adding the screenshot, I download data from https://www.kaggle.com/datasets/rikdifos/credit-card-approval-prediction

Can someone inform me about the way to fill those NA values that the occupation column has? I create a new variable to determine whether an applicant is working or not and I want to fill NA values as zero if the same observation is zero in is_working column and left the others NA.

df <- data.frame (occupation  = c("NA","NA","Drivers","Accountants","NA","Drivers","Laborers","Cleaning staff","Drivers","Drivers"),
                  is_working = c("1","0","1","1","1","1","1","1","1","1")
                  )

Answer 1

library(dplyr)
df %>%
  mutate(
    # change string "NA" to missing values NA
    occupation = ifelse(occupation == "NA", NA, occupation),
    # replace NAs where is_working is 0 with 0
    occupation = ifelse(is.na(occupation) & is_working == 0, "0", occupation)
  )
#        occupation is_working
# 1            <NA>          1
# 2               0          0
# 3         Drivers          1
# 4     Accountants          1
# 5            <NA>          1
# 6         Drivers          1
# 7        Laborers          1
# 8  Cleaning staff          1
# 9         Drivers          1
# 10        Drivers          1