In order to run the X version of SPSS, you must have an X window manager running on your computer. For MS Windows, you can run XWin32 or Micro-X, and on a Macintosh you can use Mac-X. XWin32 and Mac-X are available on the computers in the Public User Areas XWin32 also is available for download from the ITS Software Download site. The Consultants can help you obtain and use XWin32, and the ITS Web site has XWin32 documentation. Mac-X is not available for download, and must be purchased by the user.

On UNIX workstations, the X window software can be CDE, Sun OpenWindows, or MIT X Windows, among others. In this environment (X Windows on a UNIX workstation), to run the X version of SPSS, you need to open a window and make sure the DISPLAY variable is set to your local machine. At USC, the best way to get to the host where SPSS will run is to use the ssh (secure shell) command. This command opens a new window, encrypts the transmission between your machine and the host that will run SPSS, and sets the DISPLAY variable to the same setting as the window (or console) from which the ssh command was typed.

In general, the following steps will prepare the way for your SPSS X Windows session (the example uses almaak, but you may substitute the name of any machine that can access SPSS):

First, make sure the DISPLAY variable is set to your local machine in the window where you'll type the ssh command. Type echo $DISPLAY, and if you do not see 'undefined variable', then you should be able to proceed successfully. If you do see 'undefined variable', then define the DISPLAY with some form of the following command:

setenv DISPLAY <machinename>:0

setenv  DISPLAY  cabernet:0
setenv  DISPLAY  128.125.999.999:0

To learn the IP address on a UNIX workstation, go to the console window and type:

sysinfo | grep Address

To learn the IP address of a Windows PC running NT, click on Start>Programs>Command Prompt and type:

IPCONFIG

To learn the IP address of a Windows PC running Windows 95 or 98, click on Start>Programs>Command Prompt and type:

WINIPCFG

To learn the IP address of a Macintosh, click Apple Menu>Control Panel>TCP/IP, and the IP address will be shown in the middle of the box.

Now, to open the window in which SPSS will be invoked, at your local machine (e.g., the console window), type:

ssh almaak

This opens a window on remote almaak with the DISPLAY set to your local machine. Of course, if your account is in the SCF, you would substitute aludra in the above command.

The following command

spss

will then launch the X-window version of SPSS.

SPSS Under X-Windows is documented in the Base System User's Guide (UNIX portion) (see documentation list below).

The X-Windows (motif) version of SPSS is the default at ITS. If you are not capable of X-Windows, or prefer not to run it, you can run the character-based SPSS session by typing

spss +m