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sulantha2006 / VoxelStats

A MATLAB package for multi-modal voxel-wise brain image analysis
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Univariate Analysis #2

Closed vikashg closed 7 years ago

vikashg commented 8 years ago

I do not know if this is really an issue. However, I was wondering if it is possible somehow to do a univariate analysis too using VoxelStats. Basically, we are hoping that if so is the case a good univariate vs multivariate comparative study can be done .

sulantha2006 commented 8 years ago

Hi, Yes, A univariate analysis can easily be done with VoxelStats. Say your independent variable is X and the response variable is Y, then you can easily run the model 'Y~X' in VoxelStats. However, if you want to compare this with say 'Y~X+Z', you have to do it separately. With the next update, I will add the functionality to get the R^2 values and the AIC (for some), so that you can compare. Again, these are done per voxel basis. So the comparison needs to be per voxel basis.