Re: [Freesurfer] Interaction effects in QDEC

Yes

On 04/26/2017 09:15 AM, Heidi Foo wrote:

Dear Douglas,

Thank you for your reply. Does this mean that if I were to have a continuous variable (i.e. Neuroinflammation) and a categorical variable with 2 levels (i.e. gene positive and gene negative), interaction can also be found using QDEC?

Thank you.

Best Regards, Heidi Foo

On Wed, Jan 11, 2017 at 5:20 AM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:

This is done automatically when you have two categorical variables and
two continuous variables. This is equivalent to asking whether the two
slopes differ across the two categorical variables.


On 01/07/2017 09:30 AM, Heidi Foo wrote:
> Hi all,
>
> I was wondering how I could test for interaction effects between a
> categorical variable and a continuous variable using QDEC. Is
there a
> way to do so?
>
> Thank you.
>
> Best Regards,
> Heidi Foo
>
>
> _______________________________________________
> Freesurfer mailing list
> Freesurfer@nmr.mgh.harvard.edu
<mailto:Freesurfer@nmr.mgh.harvard.edu>
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
<https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>

--
Douglas N. Greve, Ph.D.
MGH-NMR Center
greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>
Phone Number: 617-724-2358 <tel:617-724-2358>
Fax: 617-726-7422 <tel:617-726-7422>

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
<http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>
FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
<https://gate.nmr.mgh.harvard.edu/filedrop2>
www.nmr.mgh.harvard.edu/facility/filedrop/index.html
<http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html>
Outgoing:
ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/
<ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/>

_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu>
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
<https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>


The information in this e-mail is intended only for the person to
whom it is
addressed. If you believe this e-mail was sent to you in error and
the e-mail
contains patient information, please contact the Partners
Compliance HelpLine at
http://www.partners.org/complianceline
<http://www.partners.org/complianceline> . If the e-mail was sent
to you in error
but does not contain patient information, please contact the
sender and properly
dispose of the e-mail.

---

Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer