Hello Freesurfer Experts,
I am currently trying to run the Linear Mixed Effects Models described in the wiki here: http://surfer.nmr.mgh.harvard.edu/fswiki/LinearMixedEffectsModels
And I am running into difficulties that are fairly well described by the last message in this previous mail thread: https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg25787.html
Can you please clarify the variable "ni"?
the following command: *[M,Y,ni] = sortData(M,1,Y,sID);* results in: ??? Error: File: sortData.m Line: 59 Column: 6 Expression or statement is incorrect--possibly unbalanced (, {, or [.
do i need to build "ni" ahead of time?
You probably don't need to know this, but I am using data generated by Freesurfer version 5.1, on matlab 7.8.0 (R2009a), which I gather will cause a few problems further down the line.
Thank you for your help, -Eric
Hi Eric
The meaning of the variable ni is explained in the header of each script that have it either as an input or output. But you can also download the sample data from the wiki page (ftp://surfer.nmr.mgh.harvard.edu/pub/data/long_mixed_effects_tools-data.tar.gz) where you will find instances of that variable and how it relates to the design matrix.
Best -Jorge
El Miércoles 5 de febrero de 2014 20:40, Eric Cunningham etc42@hawaii.edu escribió:
Hello Freesurfer Experts,
I am currently trying to run the Linear Mixed Effects Models described in the wiki here: http://surfer.nmr.mgh.harvard.edu/fswiki/LinearMixedEffectsModels
And I am running into difficulties that are fairly well described by the last message in this previous mail thread:
https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg25787.html
Can you please clarify the variable "ni"?
the following command: [M,Y,ni] = sortData(M,1,Y,sID); results in: ??? Error: File: sortData.m Line: 59 Column: 6 Expression or statement is incorrect--possibly unbalanced (, {, or [.
do i need to build "ni" ahead of time?
You probably don't need to know this, but I am using data generated by Freesurfer version 5.1, on matlab 7.8.0 (R2009a), which I gather will cause a few problems further down the line.
Thank you for your help,
-Eric
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Hi Eric,
I just came across your old email, have you ever figured it out? You don't need to compute ni beforehand, it is computed in sortData.
This is what it says in the help: ni: Vector (mx1, m # of subjects in the study) whose entries are the number of repeated measures for each subject (ordered according to sX and sY).
Something about your input is wrong, to cause the weird error message you are getting. It would be good to know what it is, so we can maybe have a more meaningful message in the future. Maybe M, Y (first dimension) and sID don't have the same length? Although that is checked in the script. If you can't figure out what was wrong with your inputs, maybe you can send me your M, Y and sID and I'll take a look.
Thanks, Martin
On 02/05/2014 09:34 PM, jorge luis wrote:
Hi Eric
The meaning of the variable ni is explained in the header of each script that have it either as an input or output. But you can also download the sample data from the wiki page (ftp://surfer.nmr.mgh.harvard.edu/pub/data/long_mixed_effects_tools-data.tar.gz) where you will find instances of that variable and how it relates to the design matrix.
Best -Jorge
El Miércoles 5 de febrero de 2014 20:40, Eric Cunningham etc42@hawaii.edu escribió:
Hello Freesurfer Experts, I am currently trying to run the Linear Mixed Effects Models described in the wiki here: http://surfer.nmr.mgh.harvard.edu/fswiki/LinearMixedEffectsModels And I am running into difficulties that are fairly well described by the last message in this previous mail thread: https://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg25787.html Can you please clarify the variable "ni"? the following command: /[M,Y,ni] = sortData(M,1,Y,sID);/ results in: ??? Error: File: sortData.m Line: 59 Column: 6 Expression or statement is incorrect--possibly unbalanced (, {, or [. do i need to build "ni" ahead of time? You probably don't need to know this, but I am using data generated by Freesurfer version 5.1, on matlab 7.8.0 (R2009a), which I gather will cause a few problems further down the line. Thank you for your help, -Eric _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> 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 . 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.
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