Date:         Thu, 1 Apr 1999 17:13:51 -0600
Reply-To:     "Nichols, David" <nichols@SPSS.COM>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@UGA.CC.UGA.EDU>
From:         "Nichols, David" <nichols@SPSS.COM>
Subject:      Re: Factor Analysis

In the menus, it is always looking for "raw" data, from which it will
compute a correlation or covariance matrix. You can input a correlation
matrix (and ancillary statistics to analyze a covariance matrix) using the
MATRIX IN(COR=) option using command syntax. If the data you feed the
procedure through the menus or using syntax without using MATRIX IN are a
correlation matrix, the procedure will not know it and will proceed to treat
them as raw data.
 
David Nichols
Principal Support Statistician and
Manager of Statistical Support
SPSS Inc.
 
> -----Original Message-----
> From: Keith [SMTP:103162.2413@COMPUSERVE.COM]
> Sent: Wednesday, March 17, 1999 8:19 AM
> To:   SPSSX-L@UGA.CC.UGA.EDU
> Subject:      Factor Analysis
>
> WhenI use the SPSS-PC system to prepare a factor analysis, I
> cannot tell whether it is wanting original data sets or a
> correlation matrix.  How can I be sure which it is seeking, how
> can I select one or the other from the menues?
>
> Thanks
>
> Keith