Hello afni experts,
I am working on changing the label of my mask which is currently a "1" to a "-1".
I am using the following command: 3dcalc -a /media/larson_buffalo/MRI7/KAward/Conditioning_From_Cluster/K_dti/${subject}/${subject}_DTI_Prep/L_CMA_Superficial_Exclusion_Mask_diff_final.nii -expr "-1*step(a)" -prefix /media/larson_buffalo/MRI7/KAward/Conditioning_From_Cluster/K_dti/${subject}/${subject}_DTI_Prep/LCMA_Superficial_Exclusion_Mask_diff_final_-1.nii
*For some reason, instead of seeing the mask with a -1 (OLay = -1 on the afni gui), the mask disappears.
I think it may be tied to this warning that I get when I ran the above 3dcalc command: Warning: sub-brick #0 has 549 negative values set =0 in conversion to bytes.
Thoughts?
Emily
Edited 1 time(s). Last edit at 04/23/2015 03:03PM by Emily.
