Hi Ian,
> I have two short questions about the fslmeants function.
>
> 1. what exactly does the --no_bin flag do? I am using a probabilistic atlas for my mask, and I was wondering if the no_bin option would give an eigenvariate that was somehow weighted by the probabilities within the mask.
Yes, that's right.
> 2. I am also extracting a mean timeseries from the res4d files and am working outside of the GUI. My understanding (from the featquery log files) is that to extract a weighted time series you:
> 1. normalize the probabilistic mask by dividing by its mean
> 2. multiply 4d data by the mask
> 3. use flsmeants -i multiplied_4d_data -o output -mask normalized_mask
> I noticed in featquery when you put in a probabilistic mask and allow featquery to binarize it, featquery first thresholds at .5. I was wondering if fslmeants does the same thing here (i.e., only extracts from voxels in the mask with p>.5) If so, is there a way I can turn this off?
This should work fine. The internal thresholding of the mask is at 1e-8, not 0.5 in this case.
All the best,
Mark
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