help labrecode
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Title

     labrecode -- Modify value labels and recode variables they are attached to


Syntax

        labrecode lblname-list (rule) [(rule) ...] [, options]


     where rule is

                numlist = # ["label"]


Description

    labrecode modifies value labels and recodes all variables they are
    attached to accordingly. In value labels, values specified in numlist are
    changed to # and any text associated with values in numlist is deleted
    from the value label. A user defined label is associated with #. If no
    label is specified labrecode combines text associated with values in
    numlist and attaches it to #.

    Caution: modifiactions affect all variables that have the same value
    label as one of the value labels in lblname-list attached.  The program
    alters existing variables.


Options

    novar recodes value labels but not variables.

    nolabel prevents labrecode from creating labels if the user does not
        provide them. Default is to combine text associated with values in
        numlist and attach it to #. Note that specifying nolabel does not
        detach text from #. To do this specify "" as label in rules.

    add adds text associated with values in numlist to text associated with #
        if no user defined label is provided. May not be combined with
        nolabel.

    separate(chars) specifies the separator between labels. Default is to use
        space (" "). May not be specified with nolabel.

    nodelete does not delete text associated with values in numlist from
        value labels. This option is seldom used.

    nostrict allows variable names in lblname-list. If specified, any
        variable that has the same value label as one of the variables in
        lblname-list attached is recoded.


Examples

    In the nlsw88 dataset, change value 2 in racelbl and race to value 3.
    Attach text "black" to value 3. Delete the association between value 2
    and text "black" from racelbl.

        . labrecode racelbl (2 = 3)

    Do the same as above, but keep text "other" attached to value 3.

        . labrecode racelbl (2 = 3) ,nolabel

    Do the same as above, but attach text "other black" to value 3.

        . labrecode racelbl (2 = 3) ,add

    Do the same as above, but delete value 3 from racelbl.

        . labrecode racelbl (2 = 3 "")

    In value label occlbl change values 1 and 2 to value 14 and attach text
    "Prof./Managers". Also change value 9 to value 10.  Attach text "Farmers
    Farm laborers" to value 10.

        . labrecode occupation (1 2 = 14 "Prof./Managers") (9/10 = 10)
            ,nostrict

    Option nostrict allows variable name occupation in lblname-list. Note
    that option add is not needed here, because value 10 is part of numlist.
    Variable occupation is recoded accordingly as would be any other variable
    using value label occlbl.

    Reverses value label racelbl and recode variable race accordingly.

        . labrecode racelbl (1=3)(3=1)


Author

    Daniel Klein, University of Kassel, klein.daniel.81@gmail.com


Also see

    Online: label

    if installed: labvalch, rev, labutil2