“tracer les valeurs manquantes” Réponses codées

tracer les valeurs manquantes

library(VIM) 

missing_img <- select(data, imwbcnt, imbgeco, imueclt)

# visualize missingness 
missing <- aggr(missing_img, prop = F, numbers = T)

#The plot on the left shows count of missing values for each variable. Each of variables have around 2000 missing avriables.  
#The plot on the right shows the combination of missing values between variables  
#- The first blue row shows that 45693 rows contain no NA  
#- There are 762 rows where imwbcnt and imbgeco, imueclt contain NA at the same time  
#- There are 850 rows where imwbcnt contains a missing value  
#- and so on