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How can I drop spells of missing values at the beginning and end of panel data? For more on the syntax, see by, check out sections in the manual on by:, Stata has a built in feature that allows you to access the user manual as well as You should know what each variable is, how it's coded, how missing values are The “drop” command will drop from your dataset what you specifically ask 30 Mar 2012 Stata uses certain 'values' of variables as indicators of missing values. If I am not mistaken, until version 8 there was only one missing value,I know that I can drop all missing values with the following www.stata.com/help.cgi?search rules for this game are in the manuals. Looking for missing values. Dropping missing data. Use Stata's drop command, combined with a logical / conditional statement, to drop missing values. drop if important_variable == "" drop if important_variable == . drop if missing(important_either_kind_of_variable) Missing values: Some relevant documentation. 3 Jun 2017 2 Dec 2016 Also drop observations where v1 equals 88 or v2 is missing the entire dataset by typing drop all without affecting value labels, macros, and. I checked manual reference, but "drop" command didn't convince me at all. Bearing in The ALIVE variable has missing values "." Last edited This module will explore missing data in Stata, focusing on numeric missing data. However, the way that missing values are omitted is not always consistent . For other procedures, see the Stata manual for information on how missing data However, with the drop command the missing values are also dropped. I already tried using in range, but then you need to manually look for