netio.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}
{* 16mar2005}{...}
{cmd:help netio}
{hline}

{title:Title}

{p2colset 5 18 20 2}{...}
{p2col :{hi:[R] netio} {hline 2}}Control Internet connections{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 26 2}{cmdab:se:t httpproxy} {c -(}{opt on}{c |}{opt off}{c )-} [{cmd:, init}]{p_end}

{p 8 26 2}{cmdab:se:t httpproxyhost} [{cmd:"}]{it:name}[{cmd:"}]{p_end}

{p 8 26 2}{cmdab:se:t httpproxyport} {it:#}{p_end}

{p 8 26 2}{cmdab:se:t httpproxyauth} {c -(}{opt on}{c |}{opt off}{c )-}{p_end}

{p 8 26 2}{cmdab:se:t httpproxyuser} [{cmd:"}]{it:name}[{cmd:"}]{p_end}

{p 8 26 2}{cmdab:se:t httpproxypw} [{cmd:"}]{it:password}[{cmd:"}]{p_end}

{p 8 26 2}{cmdab:se:t timeout1} {it:#seconds} [{cmd:,} {opt perm:anently} ]{p_end}

{p 8 26 2}{cmdab:se:t timeout2} {it:#seconds} [{cmd:,} {opt perm:anently}]

{pstd}
See {helpb set} for general information on the {cmd:set} command.


{title:Description}

{pstd}
Several commands (e.g., {helpb net}, {helpb news}, and {helpb update})
are designed specifically for use over the Internet.  Many
other Stata commands that read a file (e.g., {helpb copy}, {helpb type},
and {helpb use}) can also read directly from a URL.  In most cases, all
these commands will work without your ever needing to concern yourself
with the {cmd:set} commands discussed here.  These {cmd:set} commands
provide control over network system parameters.

{pstd}
If you experience problems using Stata's network features, ask your system
administrator if your site uses a proxy.  A proxy is a server between your
computer and the rest of the Internet, and your computer may need to
communicate with other computers on the Internet through this proxy.  If your
site uses a proxy, your system administrator can provide you with its host
name and the port your computer can use to communicate with it.  If your site's
proxy requires you to log in to it before it will respond, your system
administrator will provide you with a user ID and password.

{pstd}
{cmd:set httpproxyhost} sets the name of the host to be used as a proxy
server.  {cmd:set httpproxyport} sets the port number.  {cmd:set httpproxy}
turns on or off the use of a proxy server, leaving the proxy host name and
port intact, even when they are not in use.
See {help r(677)} for more information.

{pstd}
Under the Windows and Macintosh operating systems, when you
{cmd:set httpproxy on}, Stata will attempt to obtain the values of
{cmd:httpproxyhost} and {cmd:httpproxyport} from the operating system if they
have not been previously set.  {cmd:set httpproxy on, init} attempts to obtain
these values from the operating system, even if they have been previously set.

{pstd}
If the proxy requires authorization (user ID and password), set authorization
on via {cmd:set httpproxyauth on}.  The proxy user and proxy password must
also be set to the appropriate user ID and password using 
{cmd:set httpproxyuser} and {cmd:set httpproxypw}.

{pstd}
Note that Stata remembers the various proxy settings between sessions and
does not need a {opt permanently} option.

{pstd}
{cmd:set timeout1} changes the time limit in seconds that Stata imposes for
establishing the initial connection with a remote host.  {cmd:set timeout2}
changes the time limit in seconds that
Stata imposes for subsequent data transfer
with the host.  If these time limits are exceeded, a "connection timed out"
message and error code 2 are produced; see {help r(2)}.  You should seldom
need to change these settings.


{title:Options}

{phang}
{opt init} specifies that {cmd:set httpproxy on} attempts to initialize
{cmd:httpproxyhost} and {cmd:httpproxyport} from the operating system (Windows
and Macintosh only).

{phang}
{opt permanently} specifies that, in addition to making the change right now,
the {cmd:timeout1} and {cmd:timeout2} settings be remembered and become the
default setting for when you invoke Stata.

{pmore}
The various httpproxy settings do not have a {opt permanently} option because
{opt permanently} is implied.


{title:Also see}

{psee}
Manual:  {bf:[R] netio}

{psee}
Online:  {help r(2)}, {help r(663)}, {help r(677)}, {helpb set}
{p_end}