To me, a mask is a binary ROI (1 where the stuff you want is, 0 elsewhere). This is quite different from a label file (lots of different integers). I did not mean for you to run -cifti-reduce on a dlabel file.
I was suggesting that you use -cifti-label-to-roi to make a binary ROI from each label you are interested in, use -cifti-merge (or wb_shortcuts -cifti-concatenate) to put all those binary ROIs as separate maps in a single dscalar file, then use -cifti-reduce on that multi-ROI dscalar file to get a single map with the combined binary ROI. To then separate the ROI per-hemisphere, you can use -cifti-separate (on the binary ROI dscalar file). Tim On Tue, Sep 27, 2016 at 5:20 PM, Michael F.W. Dreyfuss < mid2...@med.cornell.edu> wrote: > I’m sorry, but this is still not clear to me. It seems this function is > meant to perform an operation to produce a scalar file, but what is > produced when I use MAX for example is just a scalar file where the value > for the key each labeled region had in the label file is not the value in > that scalar file. so BA44 was 65, BA45 was 66, and now there are two > regions with values 65 and 66. > > What I am trying to do is to merge regions together into one region as a > label file to use as a single mask. Is this possible with this function? > > I’m sorry if I’m missing something here. > > Thank you, > Michael > > > > On Sep 27, 2016, at 5:57 PM, Timothy Coalson <tsc...@mst.edu> wrote: > > http://www.humanconnectome.org/software/workbench- > command.php?function=-cifti-reduce > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.humanconnectome.org_software_workbench-2Dcommand.php-3Ffunction-3D-2Dcifti-2Dreduce&d=DQMFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=rPclmYysc_z1plf99IoNsmxWf1JolkKMmL6bXnYFSwg&m=Xs5EfvmcgCd1YzshFEix8oFIzx34876b06vXtA_UXVI&s=KS6IGgzKif6PPGEjorzvQDKDv09VSeiBIXSHw-xZrAI&e=> > > It is a simple reduction across columns (by default, anyway) in the file. > For these kinds of files, that means it isn't reducing across space. MAX > is one of the options it can calculate, and for binary ROIs, that is > equivalent to boolean OR, which is what we want. > > The commands are generally written to perform small, specific actions, > such that they could be suitable for multiple tasks. > > Tim > > > On Tue, Sep 27, 2016 at 4:49 PM, Michael F.W. Dreyfuss < > mid2...@med.cornell.edu> wrote: > >> How would this work with -cifti-reduce? If I have a cifti with BA44 and >> BA45 for example and I want those two regions to be merged into one, how >> would -cifti-reduce do that? Wouldn’t it be more suited to calculating >> something (i.e. mean, mode, etc.) within each of those parcels? >> >> Thank you >> >> On Sep 27, 2016, at 5:40 PM, Timothy Coalson <tsc...@mst.edu> wrote: >> >> wb_shortcuts >> >> >> > > _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
