how to calculate combined column mean value in R

Question

I want to make representative combined column and calculate mean.

for example, there are BILL_AMT(1,2,3,4,5,6). but i want

BILL_AMT <- which includes mean value of all BILL_AMT values.

how can i do?

Answer 1

Please provide a reproducible example of your data.

Just assuming what you're trying to do:

data <- data.frame(x = rep(1:10,1), y = rep(11:20, 1))

data %>% 
  rowwise() %>% 
  mutate(mean = mean(x + y + ...))

Based on your comment: fill in your variables for x + y + ...