-------------------------------------------------------------------------------
help for adjacent
-------------------------------------------------------------------------------

List adjacent values of variables

        adjacent varlist [weight] [if exp] [in range] [ , by(varlist) missing
                 ]

    fweights and aweights are allowed; see help weights.


Description

    adjacent lists adjacent values for a set of numeric variables in varlist.
    Calculate the upper and lower quartiles, p75 and p25, and thus the
    interquartile range iqr = p75 - p25. Then the adjacent values are the
    highest value not greater than p75 + 3/2 iqr and the lowest value not
    less than p25 - 3/2 iqr. The adjacent values are marked graphically on a
    box plot as drawn by graph box or graph hbox by the ends of the whiskers
    drawn out from each central box.


Options

    by() defines one or more grouping variables. (When using graph box or
        graph hbox, these variables would be specified in by() or over()
        options.)

    missing, applicable only with by(), specifies that results for
        observations with missing values of variables specified in by()
        should be included in the tabulation. The default is to exclude them.


Examples

    . adjacent mpg, by(foreign rep78)


Author 

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


Also see

    On-line:  help for graph box, extremes (if installed)