Hi,
After running the below collapse command, I got an error on the name conflict (pasted below). Why is this for?

foreach v of varlist TLE_ HLE_ PLE_ trim* exceeds* {
local l "`l' (count) count`v'=`v' (mean) mean`v'=`v' (min) min`v'=`v' (max) max`v'=`v' "
}

collapse `l', by(Age_Group_ sample_label)

error:
countTLE_ = (count) TLE_
countTLE_ = (count) TLE_
name conflict