Hi list,
I'm performing a series of confirmatory factor analysis on different
groupings of items from data collected with questionnaires. There are some
missing values.
For those sets with no missing values I call
factanal(datamatrix,factors=n)
where datamatrix is a table of all observations
Dear Antonio,
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Antonio Prioglio
Sent: Tuesday, July 13, 2004 9:32 AM
To: [EMAIL PROTECTED]
Subject: [R] Help with factanal and missing values
Hi list,
I'm performing a series of confirmatory
On Tue, 13 Jul 2004, John Fox wrote:
Two solutions are to use na.omit() to eliminate observations with missing
data -- factanal(na.omit(datamatrix), factors=n) -- or to use a formula
argument to factanal and pass the data as a data frame via the data argument
-- factanal(~ var1 + ... + vark,
Dear Antonio,
-Original Message-
From: Antonio Prioglio [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 13, 2004 12:50 PM
To: John Fox
Cc: [EMAIL PROTECTED]
Subject: RE: [R] Help with factanal and missing values
On Tue, 13 Jul 2004, John Fox wrote:
Two solutions are to use
On Tue, 13 Jul 2004, John Fox wrote:
Could you give an example on how to do CFA with sem?
Among the examples in ?sem is a second-order CFA.
Ok, sorry I forgot about the Thurstone example as I was focusing on Path
Analysis example when reading the sem doc.
I understand this is a model taken
On Tue, 13 Jul 2004, John Fox wrote:
Among the examples in ?sem is a second-order CFA.
Thanks now I have it running, hopefully in a correct way.
By the way I notice in the output a GFI index that in your online appendix
to your 2002 book describe as an ad hoc measure.
Could you comment on
PROTECTED]
Subject: RE: [R] Help with factanal and missing values
On Tue, 13 Jul 2004, John Fox wrote:
Could you give an example on how to do CFA with sem?
Among the examples in ?sem is a second-order CFA.
Ok, sorry I forgot about the Thurstone example as I was
focusing on Path
these would be
of help.
Regards,
John
-Original Message-
From: Antonio Prioglio [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 13, 2004 3:22 PM
To: John Fox
Cc: [EMAIL PROTECTED]
Subject: RE: [R] Help with factanal and missing values
On Tue, 13 Jul 2004, John Fox wrote
On Tue, 13 Jul 2004, John Fox wrote:
Dear Antonio,
This example is (as stated) a second-order CFI, where each of the primary
factors, F1, F2, and F3 depends upon the second-order factor F4. To have no
second-order structure, simply define variances and (assuming that you're
specifying
Dear Antonio,
-Original Message-
From: Antonio Prioglio [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 13, 2004 5:54 PM
To: John Fox
Cc: [EMAIL PROTECTED]
Subject: RE: [R] Help with factanal and missing values
On Tue, 13 Jul 2004, John Fox wrote:
Dear Antonio
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