79501946

Date: 2025-03-11 19:49:46
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Similar solution without having to explicitly specify columns or column index:

df = data.frame(person=c("a","b","c"),var1=c(1,2,3),var2=c(4,5,6))

df %>% mutate(total=rowSums(.[names(.)[names(.)!="person"]]))
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Posted by: user3667133