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Check if object is a 3D binary mask.
is.3D_mask(x)
The putative subcortical mask.
Logical. Is x a valid subcortical mask?
x
This is a helper function for is.xifti.
is.xifti
Requirements: the mask must be a boolean 3D array. TRUE should indicate voxels included in the mask, whereas FALSE should indicate voxels outside of it.
TRUE
FALSE