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Basic syntax. recode varlist (rule) (rule) : : : , generate(newvar) Full syntax. recode varlist (erule) (erule) : : : if. in. where the most common forms for rule are.
Method 1: Using command replace. We can manually replace missing values with “ .a ” for -999, “ .b ” for -99 and .c for the rest of missing values. For example, for variable female, we can do the following: replace female = .a if female == -999. replace female = .b if female == -99. replace female = .c if female >= -3 & female < 0. list, clean .
The message tells you waht the problem is: -recode- only works with numeric variables, not string variables. -recode- has no problem with recoding to missing. But it won't work with mip because mip is a string variable.
31 lip 2020 · I have imported a csv file from R into Stata and am not sure if there is a succinct way for replacing all the NA values with missing. I have tried: replace 'var'= "." if 'var'== "NA" ....... However, I have 700 variables (many of which are string) so doing this one by one is taking way too long.
16 lis 2022 · How can I replace missing values with previous or following nonmissing values or within sequences? 1. The problems. Users often want to replace missing values by neighboring nonmissing values, particularly when observations occur in some definite order, often (but not always) a time order.
bysort group (value) : replace value = value[_n-1] if missing(value) as the missing values are first sorted to the end and then each missing value is replace d by the previous non-missing value. Replacement cascades downwards, but only within each group. For documentation, see this FAQ.
This module will explore missing data in Stata, focusing on numeric missing data. It will describe how to indicate missing data in your raw data files, as well as how missing data are handled in Stata logical commands and assignment statements.
