[Freesurfer] treatment of missing values in mri_glmfit

2012-02-24 Thread Kristine Beate Walhovd
Hi, we´re running FS 5.1 and have a data set with a lot of missing values. There are different subsets of persons missing different values of interest, and we´re running analyses on concat files. mri_glmfit not qdec). Is there anyway we can run analyses w/ missings in the fsgd file? Best

Re: [Freesurfer] treatment of missing values in mri_glmfit

2012-02-27 Thread Douglas N Greve
Hi Kristine, unfortunately we're not set up for that. Sorry. doug Kristine Beate Walhovd wrote: > Hi, > > we´re running FS 5.1 and have a data set with a lot of missing values. > There are different subsets of persons missing different values of > interest, and we´re running analyses on conc

Re: [Freesurfer] treatment of missing values in mri_glmfit

2012-02-27 Thread MCLAREN, Donald
Kristine/Doug, Are you missing Dependent Variable values or Independent Variable Values? If you are missing some IV values, there are two potential solutions: (1) Drop the subject; (2) Impute the value of that subject given other variables and relationships of those variables and the variable wit