在r中找不到函数

I have a element 'measure' with 5 values say 10 20 30 40 50 and I am trying to get the sum of the other 4 values for each and every value. So if the selected value is 20 then the sum will be 10+30+40+50 = 130. I am doing this with the 'repeat' loop with 'n' denoting the # of values that is 5 in this case and total is the sum of all 5 values of measure that is 150.I have a element 'measure' with 5 values say 10