I am trying to get an output with average gray/white ratio values for each segmentation. I tried using the gwratio.mgh file as the input for mris_anatomical_stats, but got the following error message:<br><br>reading input surface /home/freesurfer4.4.0/subjects/1057/surf/lh.gwratio.mgh...<br>
<div id=":1ev">ERROR: MRISread: file &#39;/home/freesurfer4.4.0/subjects/1057/surf/lh.gwratio.mgh&#39; has 0 vertices!<br><br>Any insight?<br></div>