Hi. What do the indices of the __peaks.nii.gz file in FODF_Metrics represent, specifically the last axis? It appears to be a [X,Y,Z,15] file. From my very basic understanding, I am guessing that there are 5 peaks with 3 channels per peak. If that is the case, and I wanted to extract the 3 largest peaks, would I just index the first 9 slices of that file?