gs_filetype.hlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{smcl}
{* 10mar2005}{...}
{cmd:help gs_filetype}{right:also see:  {help undocumented}}
{hline}

{title:Title}

{p 4 21 2}
{cmd:gs_filetype} {hline 2} Subroutine to determine type of .gph file


{title:Syntax}

{p 8 16 2}
{cmd:gs_filetype}
{it:filename}
[{cmd:,}
{cmd:suffix}
]


{title:Description}

{pstd}
{cmd:gs_filetype} returns whether {it:filename} is old, asis, or live
format.


{title:Option}

{phang}
{cmd:suffix}
    specifies that {it:filename} is to be suffixed with {cmd:.gph}
    if it does not already contain a suffix.


{title:Remarks}

{pstd}
{cmd:gs_filetype} produces no output except for the error messages:

	{err:invalid file specification}
	r(198);

	{err:file ____ not found}
	r(601);

	{err:file ____ not a Stata .gph file}
	r(610);

	{err:file ____ is a new format that this version of Stata does}
	{err:not know how to read}
	{err:    suggestion:  type -update query-}
	r(610);

	{err:file ____ is an old format that Stata no longer knows}
	{err:how to read}
	r(610);


{title:Saved results}

{pstd}
Returned in r() is

	local  {cmd:r(fn)}            {it:filename} or {it:filename}{cmd:.gph}
	local  {cmd:r(ft)}            "{cmd:old}", "{cmd:asis}", or "{cmd:live}"
	local  {cmd:r(olddtl)}        "{cmd:real}" or "{cmd:emulation}", if {cmd:r(ft)}=="{cmd:old}"
	scalar {cmd:r(fversion)}      file format if {cmd:live}
	scalar {cmd:r(cversion)}      code format if {cmd:live}


{title:Also see}

{psee}
Online:
{helpb gs_fileinfo},
{helpb graph describe}
{p_end}