TWOSTEP How to find AIC and BIC for different numbers of clusters considered.

[Art Kendall]

In older version of SPSS, TWOSTEP would show the AIC or BIC for
different numbers of clusters when AUTO was specified for the number of
clusters. For example, if one asked for a max of 12 clusters there was a
line for each possible clustering of 12, 11, 10, ...2.

Now that there is more visualization in the output I cannot find this
info.  Jumps in AIC or BIC give a ballpark for the number of cluster to
retain.

I thought this info was going to be put back in the output for version
20 but I cannot find it.  Am I missing something obvious?


--
Art Kendall
Social Research Consultants

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[Anthony Babinec]

Art,
I believe that you have to ask for it. This may be syntax-only
via subcommand:       /PRINT IC.

That's according to the Syntax Guide.


Tony Babinec
[hidden email]

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Art
Kendall
Sent: Monday, January 09, 2012 12:35 PM
To: [hidden email]
Subject: TWOSTEP How to find AIC and BIC for different numbers of clusters
considered.

In older version of SPSS, TWOSTEP would show the AIC or BIC for different
numbers of clusters when AUTO was specified for the number of clusters. For
example, if one asked for a max of 12 clusters there was a line for each
possible clustering of 12, 11, 10, ...2.

Now that there is more visualization in the output I cannot find this info.
Jumps in AIC or BIC give a ballpark for the number of cluster to retain.

I thought this info was going to be put back in the output for version
20 but I cannot find it.  Am I missing something obvious?


--
Art Kendall
Social Research Consultants

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command SIGNOFF SPSSX-L For a list of
commands to manage subscriptions, send the command INFO REFCARD

=====================
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[Alex Reutter]

Hi Art,

It's not in the Model Viewer output, but in traditional pivot table output.  You need to request it with /PRINT IC.

Alex

[Jon K Peck]

The TWOSTEP syntax still supports the PRINT subcommand, which will give you the traditional output.

Jon Peck (no "h") aka Kim
Senior Software Engineer, IBM
[hidden email]
new phone: [phone]




From:        Art Kendall <[hidden email]>
To:        [hidden email]
Date:        01/09/2012 11:39 AM
Subject:        [SPSSX-L] TWOSTEP How to find AIC and BIC for different numbers              of clusters              considered.
Sent by:        "SPSSX(r) Discussion" <[hidden email]>

---

In older version of SPSS, TWOSTEP would show the AIC or BIC for
different numbers of clusters when AUTO was specified for the number of
clusters. For example, if one asked for a max of 12 clusters there was a
line for each possible clustering of 12, 11, 10, ...2.

Now that there is more visualization in the output I cannot find this
info.  Jumps in AIC or BIC give a ballpark for the number of cluster to
retain.

I thought this info was going to be put back in the output for version
20 but I cannot find it.  Am I missing something obvious?


--
Art Kendall
Social Research Consultants

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD