Data management: How to identify and replace unusual data values

[@alvairneto5789]

if we are telling stata to turn all values greater than 400 to missing values, why it is needed to compliment that with & !missing(sbp)? If the data is already missing, what is the point of this additional command?

[@muhammadhaseeb9305]

It is because then the value will not be Deleted from the whole data and if it is actually a missing value, the rest of the data of that Individual will be preserved.

[@dimitris303]

Is this an alternative way of dealing with outliers?

[@cartmankiller2]

you could try to impute values that make sense