SPSSX Discussion

Non-linear regression

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nandani wee

Non-linear regression

Hi All,

I have installed SPSS-15.0. But I found that I can do only linear regression analysis . Am I correct? Can't I do non-linear regression using that software?

I am looking forward to your reply.

Best regards,

Geetha

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Dale Glaser

Re: Non-linear regression

yes Geetha, you can do nonlinear regression (NLR) but you need the Regression Models module.........

dale

nandani wee <[hidden email]> wrote:
Hi All,

I have installed SPSS-15.0. But I found that I can do only linear regression analysis . Am I correct? Can't I do non-linear regression using that software?

I am looking forward to your reply.

Best regards,

Geetha

Send instant messages to your online friends http://uk.messenger.yahoo.com

Dale Glaser, Ph.D.
Principal--Glaser Consulting
Lecturer/Adjunct Faculty--SDSU/USD/AIU
President-Elect, San Diego Chapter of
American Statistical Association
3115 4th Avenue
San Diego, CA 92103
phone: 619-220-0602
fax: 619-220-0412
email: [hidden email]
website: www.glaserconsult.com

Albert-Jan Roskam

Re: Non-linear regression

You can also model non-linear effects by linearly
transforming your independent variable(s), for
instance squaring, and then use simple linear
regression. You do have to assume a certain
relationship (in this case a quadratic relationship)

Albert-Jan

--- Dale Glaser <[hidden email]> wrote:

> yes Geetha, you can do nonlinear regression (NLR)
> but you need the Regression Models module.........
>
> dale
>
> nandani wee <[hidden email]> wrote:
> Hi All,
>
> I have installed SPSS-15.0. But I found that I can
> do only linear regression analysis . Am I correct?
> Can't I do non-linear regression using that
> software?
>
> I am looking forward to your reply.
>
> Best regards,
>
> Geetha
>
> Send instant messages to your online friends
> http://uk.messenger.yahoo.com
>
>
>
> Dale Glaser, Ph.D.
> Principal--Glaser Consulting
> Lecturer/Adjunct Faculty--SDSU/USD/AIU
> President-Elect, San Diego Chapter of
> American Statistical Association
> 3115 4th Avenue
> San Diego, CA 92103
> phone: 619-220-0602
> fax: 619-220-0412
> email: [hidden email]
> website: www.glaserconsult.com
>

Cheers!
Albert-Jan

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Peck, Jon

Re: Non-linear regression

It is certainly true that you can estimate a model that is nonlinear in the variables with linear regression. What you can't do is estimate a model that is nonlinear in the parameters that way. But sometimes you can transform a nonlinear in parameters model to one that is linear in parameters by, for example, taking logs of both sides of the equation.

Beyond that you would need the NLR or CNLR procedure from the Advanced Models option.

HTH,
Jon Peck

-----Original Message-----
From: SPSSX(r) Discussion on behalf of Albert-jan Roskam
Sent: Sun 4/8/2007 7:32 AM
To: [hidden email]
Subject: Re: [SPSSX-L] Non-linear regression

You can also model non-linear effects by linearly
transforming your independent variable(s), for
instance squaring, and then use simple linear
regression. You do have to assume a certain
relationship (in this case a quadratic relationship)

Albert-Jan

--- Dale Glaser <[hidden email]> wrote:

Jamie Burnett-3

Graphs in SPSS

In reply to this post by Albert-Jan Roskam

Hi,

I am using the syntax below to calculate and plot the mean score of each variable ABC, DEF, etc. by stakeholder. What I end up with are 6 lines, one for each variable, plotted for each stakeholder.

What I would like to do is restrict the y axis to between two values 4 and 8, but at present SPSS makes this decision for me, is there anyway of doing this?

GRAPH

/LINE(MULTIPLE)=MEAN(ABC_employer) MEAN(DEF_employer) MEAN(GHI_employer) MEAN(JKL_employer) MEAN(MNO_employer) MEAN(PQR_employer) BY stakeholder

/MISSING=VARIABLEWISE

/TITLE= 'Employer by Stakeholder - Mean score'.

Many Thanks

Jamie

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Beadle, ViAnn

Re: Graphs in SPSS

two ways to do this:

1) use GGRAPH with GPL. You can constrain axes with the SCALE statement.
2) run it once with GRAPH, double-click on it and edit the y axis scale. Save a chart template within the chart editor, checking off only the scale axis as contents of the template. Refer to the chart template in future GRAPH syntax in which you want the scale constrained in exactly this way.

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Jamie Burnett
Sent: Monday, April 09, 2007 6:34 AM
To: [hidden email]
Subject: Graphs in SPSS

Hi,

I am using the syntax below to calculate and plot the mean score of each variable ABC, DEF, etc. by stakeholder. What I end up with are 6 lines, one for each variable, plotted for each stakeholder.

What I would like to do is restrict the y axis to between two values 4 and 8, but at present SPSS makes this decision for me, is there anyway of doing this?

GRAPH

/LINE(MULTIPLE)=MEAN(ABC_employer) MEAN(DEF_employer) MEAN(GHI_employer) MEAN(JKL_employer) MEAN(MNO_employer) MEAN(PQR_employer) BY stakeholder

/MISSING=VARIABLEWISE

/TITLE= 'Employer by Stakeholder - Mean score'.

Many Thanks

Jamie

============================
This e-mail and all attachments it may contain is confidential and intended solely for the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of Ipsos MORI and its associated companies. If you are not the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, printing, forwarding or copying of this e-mail is strictly prohibited. Please contact the sender if you have received this e-mail in error.

Market & Opinion Research International Ltd , Registered in England and Wales No. 948470 , 79-81 Borough Road , London SE1 1FY, United Kingdom, Email: [hidden email]
============================

Zdaniuk, Bozena

cumulative count in frequencies table?

Hello, is there a way to request a cumulative count column when running
frequencies? (just like one gets the cumulative percentage).
Bozena

Bozena Zdaniuk, Ph.D.

University of Pittsburgh

UCSUR, 6th Fl.

121 University Place

Pittsburgh, PA 15260

Ph.: 412-624-5736

Fax: 412-624-4810

email: [hidden email]