use.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}
{* 07jan2005}{...}
{cmd:help use}{right:dialogs:  {bf:{dialog use_dlg:use}}  {dialog use_option:use with options}}
{hline}

{title:Title}

{p2colset 5 17 19 2}{...}
{p2col :{hi:[D] use} {hline 2}}Use Stata dataset{p_end}
{p2colreset}{...}


{title:Syntax}

{phang}
Load Stata-format dataset

{p 8 12 2}
{opt u:se}
{it:filename}
[{cmd:,}
{opt clear}
{opt nol:abel}]

{phang}
Load subset of Stata-format dataset

{p 8 12 2}
{opt u:se}
[{varlist}]
{ifin}
{helpb using}
{it:filename}
[{cmd:,}
{opt clear}
{opt nol:abel}]

{p 4 6 2}
Note that if your {it:filename} contains embedded spaces, remember to enclose
it in double quotes.


{title:Description}

{pstd}
{opt use} loads a Stata-format dataset previously saved by {opt save} into
memory.  If {it:filename} is specified without an extension, {cmd:.dta} is
assumed.

{pstd}
In the second syntax for {opt use}, a subset of the data may be read.


{title:Options}

{phang}
{opt clear} specifies that it is okay to replace the data in memory,
even though the current data have not been saved to disk.

{phang}
{opt nolabel} prevents value labels in the saved data from being loaded.
It is unlikely that you will ever want to specify this option.


{title:Examples}

{phang}{cmd:. use myfile}{p_end}
{phang}{cmd:. use myfile, clear}{p_end}

{phang}{cmd:. use pid name age using myfile}{p_end}
{phang}{cmd:. use if sex=="male" using myfile}{p_end}
{phang}{cmd:. use using myfile if sex==male}{p_end}
{phang}{cmd:. use pid name age sex using myfile if sex==male}{p_end}


{title:Also see}

{psee}
Manual:  {bf:[D] use}

{psee}
Online:  
{helpb compress},
{helpb fdasave},
{helpb haver},
{help infile1},
{help infile2},
{helpb infix},
{helpb insheet},
{helpb odbc},
{helpb save},
{helpb sysuse},
{helpb webuse},
{p_end}