Date: Tue, 7 Sep 2010 16:55:02 +0200
Reply-To: "Ginkel, Joost van" <JGinkel@fsw.leidenuniv.nl>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: "Ginkel, Joost van" <JGinkel@fsw.leidenuniv.nl>
Subject: Re: Imputation Question
In-Reply-To: A<679429446.14230.1283870462355.JavaMail.tomcat@aurora>
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Dear Courtney,
You can either change the measurement level of those ordinal variables
of which it wouldn't do much harm to treat them as numeric. You can do
this by changing the Measure of the specific variables in variable view.
Or you can change the maximum number of modelparameters in the syntax
(for example, MAXMODELPARAM = 100000). However, the latter will take a
lot of computation time. Good luck!
Best regards,
Joost van Ginkel
Joost R. van Ginkel, PhD
Leiden University
Faculty of Social and Behavioural Sciences
PO Box 9555
2300 RB Leiden
The Netherlands
Tel: +31-(0)71-527 3620
Fax: +31-(0)71-527 1721
-----Original Message-----
From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
Courtney M. Cronley
Sent: Tuesday, September 07, 2010 4:41 PM
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: Imputation Question
I am trying to imputem missing values. I have a data set with 500
variables, both interval and ordinal. When I run the imputation, I get
this error message:
The imputation model for r022q1C contains more than 100 parameters. No
missing values will be imputed. Reducing the number of effects in the
imputation model, by merging sparse categories of categorical variables,
changing the measurement level of ordinal variables to scale, removing
two-way interactions, or specifying constraints on the roles of some
variables, may resolve the problem. Alternatively increase the maximum
number of parameters allowed on the MAXMODELPARAM keyword of the IMPUTE
subcommand.
Execution of this command stops.
Any ideas on what I can do? The ro22q1C variable is an ordinal variable.
Thanks!
Courtney
Courtney Cronley, Ph.D.
Postdoctoral Associate
Center of Alcohol Studies
Rutgers University
cronley@rci.rutgers.edu
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