Hi Vincent - Thanks for bringing this to my attention. I can see what might cause this glitch (only in the longitudinal case) and I'll fix it in the next version.
In the meantime, if you delete one of the two identical lines from cpts.map.txt, and then rerun the dmri_pathstats command line that you'll find in the trac-all.log of your subject, it should regenerate the stats files correctly. Sorry for the inconvenience. a.y On Fri, 17 May 2013, vbrun...@nmr.mgh.harvard.edu wrote: > Dear Anastasia, > > When running the longitudinal tracula version on our 39 subjects I found > for some of them "nan"-values for the center_avg variables of some tracts. > When I have a look at the tract distribution and the highest probability > path, everything seems to be ok. However, when checking the control points > of this path, two of them are the same. Do you know how this could have > happened / what to do? > > E.g. control points of forceps major from a subject (cpts.map.txt), see > 4th and 5th control point: > > 63 20 39 > 67 31 39 > 59 43 38 > 52 42 38 > 52 42 38 > 43 32 38 > 50 19 33 > > And the respective pathstats.overall.txt: > Count 1500 > Volume 370 > Len_Min 62 > Len_Max 99 > Len_Avg 78.9307 > Len_Center 0 > AD_Avg 0.00155598 > AD_Avg_Weight 0.00158424 > AD_Avg_Center -nan > RD_Avg 0.000438439 > RD_Avg_Weight 0.000401328 > RD_Avg_Center -nan > MD_Avg 0.000810952 > MD_Avg_Weight 0.000795633 > MD_Avg_Center -nan > FA_Avg 0.662419 > FA_Avg_Weight 0.696257 > FA_Avg_Center -nan > > Thanks for your help!! :) > Best, > Vincent > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ Freesurfer mailing list 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.
