External Email - Use Caution
Dear Freesurfer team,
I'm running a group analysis where I'd like to compare myelination between two groups regressing out cortical thickness, age and sex. My FSGD file is: GroupDescriptorFile 1 Title Func Class HC Class CMT Variables Age gender Input fs_VF HC 46 Female Input fs_RF HC 24 Female .......
My group.diff.mtx is: 1 -1 0 0 0 0 0
My command line: mri_glmfit.bin --y rh.t1t2ratio_30_fmed_3sm_decurv.fsavg.mgh --fsgd age_gender.fsgd --pvr rh.thickness_30.fsavg.mgh --C group.diff.mtx --surf fsaverage rh --cortex --glmdir rh_allbrain_t1t2_group_thickness_age_gender.glmdir
*But unfortunately I get this wrong message: * RROR: matrix is ill-conditioned or badly scaled, condno = 1e+08 -------------------------------- Possible problem with experimental design: Check for duplicate entries and/or lack of range of continuous variables within a class. If you seek help with this problem, make sure to send: 1. Your command line: mri_glmfit.bin --y rh.t1t2ratio_30_fmed_3sm_decurv.fsavg.mgh --fsgd age_gender.fsgd --pvr rh.thickness_30.fsavg.mgh --C group.diff.mtx --surf fsaverage rh --cortex --glmdir rh_allbrain_t1t2_group_thickness_age_gender.glmdir 2. The FSGD file (if using one) 3. And the design matrix above Attempting to diagnose further SumSq: Min=0.000000 (col 5), Max=146.140350 (col 3) The scale is much different between columns 5 and 3, you may want to normalize by subtracting the mean and dividing by the standard deviation. Column 5, all values are 0 Column 6, all values are 0 Columns 5 and 6 are the same
Can you please help me?
Thank you very much Raf
https://secure-web.cisco.com/1wUz9v9uYsJZHEMIX9ov8a61ikcAm6idKqX4eyutNBtobOl1DNQ1Zgl7b0jPBUhh-v0MegHtvivV4GqpiI1Yq6gWDKq4w-vZ14kJqZwc6OojEKTPe7TDpceUpl4bJ7n_O2n5IKdxI4kwKKicj0vfq_hZm9CPd_l4qZuqS--wL7Tqw1WYy-M0oabCRTQNB0lUfzdBS43wa1dRF87BjfheiCx7cNfsqPeeJcQtLrXOm0B5zgIioEz-Lv_Iaku1mP6s8XHIfIHKYuqgfl98N0w-SGg/https%3A%2F%2Fwww.avast.com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_campaign%3Dsig-email%26utm_content%3Dwebmail Mail priva di virus. http://secure-web.cisco.com/1u95FL6P0fuXqFu5_WySmigs4cTD1aGD0opSNlDIfm7U18EN... https://secure-web.cisco.com/1wUz9v9uYsJZHEMIX9ov8a61ikcAm6idKqX4eyutNBtobOl1DNQ1Zgl7b0jPBUhh-v0MegHtvivV4GqpiI1Yq6gWDKq4w-vZ14kJqZwc6OojEKTPe7TDpceUpl4bJ7n_O2n5IKdxI4kwKKicj0vfq_hZm9CPd_l4qZuqS--wL7Tqw1WYy-M0oabCRTQNB0lUfzdBS43wa1dRF87BjfheiCx7cNfsqPeeJcQtLrXOm0B5zgIioEz-Lv_Iaku1mP6s8XHIfIHKYuqgfl98N0w-SGg/https%3A%2F%2Fwww.avast.com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_campaign%3Dsig-email%26utm_content%3Dwebmail <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>