help save9 (version 1.2, 18-Oct-2011)
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Title

    save9 - Save dataset in Stata-9 format regardless of whether Stata 9, 10,
    11 or 12 is being run.

Syntax

        save9 filename [, nolabel replace all ]



Description

    save9 saves, in the Stata-9 format, the dataset in memory to disk
    regardless of whether Stata 9, 10, 11 or 12 is being run.  If filename is
    specified without an extension, .dta is assumed.  If filename contains
    embedded spaces, remember to enclose it in double quotes " ".  save9 can
    be useful in situations where authors who are running different editions
    of Stata may wish to share the same .do scripts and the same datasets.

    Note that any attempt to exit Stata after the save9 command might result
    in the warning no; data in memory would be lost if Stata 10, 11 or 12
    last saved the data in the Stata-9 format.  This is a default behaviour
    of Stata insofar as it expects the data to be saved in the lastest format
    before exiting.  This default behaviour can be overcome by issuing the
    clear command before issuing the exit command.

    save9 will also work in Stata-8 but it will save the dataset in the
    Stata-8 format.  Stata-8 datasets have a limit of 244 characters for
    their values labels, Stata-9 datasets have a limit of 32,000 characters
    but in all other ways the Stata-8 and Stata-9 dataset formats are
    equivalent.  save9 will not work in Stata-7 or earlier.

    save9 works by using the creturn code c(stata_version) to determine which
    version of Stata is being run.  It then uses this to decide if to include
    the undocumented oldformat option when calling the save command.


Options

    nolabel prevents value labels in the dataset from being saved.

    replace permits overwriting of an existing dataset.

    all saves e(sample) with the dataset; programmer's option.

Author

    Marco G. Ercolani


Examples

    . save9 MyData, replace

    . save9 "My Data"

    . save9 "My Data.dta"

    . save9 "My Data.dta", nolabel replace


Also see