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help for ^nmissing, npresent^                      (STB-49: dm67; STB-60: dm67.1)
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Numbers of missing (present) values
-----------------------------------

    ^nmissing^ [varlist] [^if^ exp] [^in^ range] [ ^, m^in^(^#^) o^bs ] 
    
    ^npresent^ [varlist] [^if^ exp] [^in^ range] [ ^, m^in^(^#^) o^bs ] 


Description
-----------

^nmissing^ lists the number of missing values in each variable in varlist 
(or optionally in each observation). Missing means numeric missing
or . for numeric variables and empty or ^""^ for string variables. 

^npresent^ lists the number of present (non-missing) values in each 
variable in varlist (or optionally in each observation). 


Options
-------

^min(^#^)^ specifies that only numbers at least # should be listed. 
    Default 1. The argument may be any positive integer or expression 
    evaluating to a positive integer. Expressions may include _N. As a 
    special case ^all^ means the number of variables in varlist or, 
    with ^obs^, the number of observations. 

^obs^ specifies that counting is for observations, not variables.     


Examples
--------

    . ^nmissing^
    . ^nmissing rep78^

    To see which observations have all missing values: 

    . ^nmissing, min(all) obs^ 
    . ^npresent^


Author
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         Nicholas J. Cox, University of Durham, U.K.
         n.j.cox@@durham.ac.uk


Also see
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     STB: STB-49 dm67